| Monday, April 7 |
| » Major-league debuts: John Kruk (Padres) |
| Tuesday, April 8 |
| » Lost to Braves (1-0), 6-0 | Atlanta-Fulton County Stadium (0-1) | 0-1 | |
| » W: Rick Mahler (1-0) L: Bryn Smith (0-1) | Second | 1 out |
| Thursday, April 10 |
| » Defeated Braves (1-1), 6-3 | Atlanta-Fulton County Stadium (1-1) | 1-1 | |
| » W: Jay Tibbs (1-0) L: Gene Garber (0-1) S: Tim Burke (1) | Third | 1 out |
| Friday, April 11 |
| » Lost to Cardinals (3-0), 9-1 | Busch Stadium II (0-1) | 1-2 | |
| » W: Bob Forsch (1-0) L: Joe Hesketh (0-1) | Third | 2 out |
| » Major-league debuts: Jeff Parrett (Expos) |
| Saturday, April 12 |
| » Lost to Cardinals (4-0), 6-3 | Busch Stadium II (0-2) | 1-3 | Lost 2 |
| » W: John Tudor (2-0) L: Floyd Youmans (0-1) S: Todd Worrell (2) | Fifth | 3 out |
| Sunday, April 13 |
| » Defeated Cardinals (4-1), 3-2 | Busch Stadium II (1-2) | 2-3 | |
| » W: Bryn Smith (1-1) L: Kurt Kepshire (0-1) S: Jeff Reardon (1) | Fourth | 2 out |
| Tuesday, April 15 |
| » Defeated Cubs (1-5), 4-3 | Stade Olympique (1-0) | 3-3 | Won 2 |
| » W: Jeff Reardon (1-0) L: Lee Smith (0-2) | Third | 2 out |
| Thursday, April 17 |
| » Lost to Cubs (2-5), 7-6 | Stade Olympique (1-1) | 3-4 | |
| » W: Lee Smith (1-2) L: Jeff Reardon (1-1) | Fourth | 2½ out |
| Friday, April 18 |
| » Lost to Cardinals (6-1), 4-2 | Stade Olympique (1-2) | 3-5 | Lost 2 |
| » W: John Tudor (3-0) L: Joe Hesketh (0-2) S: Todd Worrell (3) | Fifth | 3½ out |
| Saturday, April 19 |
| » Lost to Cardinals (7-1), 9-6 | Stade Olympique (1-3) | 3-6 | Lost 3 |
| » W: Tim Conroy (1-0) L: Floyd Youmans (0-2) | Fifth | 4½ out |
| Sunday, April 20 |
| » Defeated Cardinals (7-2), 2-0 | Stade Olympique (2-3) | 4-6 | |
| » W: Jay Tibbs (2-0) L: Ricky Horton (0-1) | Fourth | 3½ out |
| Tuesday, April 22 |
| » Defeated Phillies (3-7), 8-2 | Stade Olympique (3-3) | 5-6 | Won 2 |
| » W: Andy McGaffigan (1-0) L: Charles Hudson (1-1) S: Tim Burke (2) | Third | 2½ out |
| Wednesday, April 23 |
| » Lost to Phillies (4-7), 5-4 | Stade Olympique (3-4) | 5-7 | |
| » W: Steve Carlton (1-2) L: Joe Hesketh (0-3) S: Steve Bedrosian (1) | Fourth | 3 out |
| » Major-league debuts: Chris James (Phillies) |
| Thursday, April 24 |
| » Lost to Cubs (5-7), 7-5 | Wrigley Field (0-1) | 5-8 | Lost 2 |
| » W: Rick Sutcliffe (1-3) L: Bryn Smith (1-2) S: Jay Baller (1) | Fifth | 4 out |
| Friday, April 25 |
| » Defeated Cubs (5-8), 4-2 | Wrigley Field (1-1) | 6-8 | |
| » W: Jeff Reardon (2-1) L: Matt Keough (0-1) | Fifth | 4 out |
| Saturday, April 26 |
| » Defeated Cubs (5-9), 4-2 | Wrigley Field (2-1) | 7-8 | Won 2 |
| » W: Tim Burke (1-0) L: George Frazier (0-1) S: Jeff Reardon (2) | Third | 4 out |
| Sunday, April 27 |
| » Lost to Cubs (6-9), 12-10 | Wrigley Field (2-2) | 7-9 | |
| » W: Ray Fontenot (1-0) L: Jeff Reardon (2-2) S: Jay Baller (2) | Fourth | 5 out |
| Tuesday, April 29 |
| » Defeated Reds (5-11), 7-4 | Riverfront Stadium (1-0) | 8-9 | |
| » W: Bryn Smith (2-2) L: Mario Soto (2-2) | Third | 5 out |
| Wednesday, April 30 |
| » Defeated Reds (5-12), 8-0 | Riverfront Stadium (2-0) | 9-9 | Won 2 |
| » W: Jay Tibbs (3-0) L: Tom Browning (0-3) | Second | 5 out |
| Friday, May 2 |
| » Lost to Astros (15-6), 6-3 | Stade Olympique (3-5) | 9-10 | |
| » W: Bob Knepper (5-0) L: Floyd Youmans (0-3) S: Dave Smith (8) | Second | 5½ out |
| Saturday, May 3 |
| » Defeated Astros (15-7), 7-6 | Stade Olympique (4-5) | 10-10 | |
| » W: Jeff Reardon (3-2) L: Frank DiPino (0-1) | Second | 5½ out |
| Sunday, May 4 |
| » Defeated Astros (15-8), 7-6 | Stade Olympique (5-5) | 11-10 | Won 2 |
| » W: Jeff Reardon (4-2) L: Dave Smith (0-1) | Second | 5½ out |
| Monday, May 5 |
| » Defeated Phillies (9-12), 6-4 | Veteran's Stadium (1-0) | 12-10 | Won 3 |
| » W: Dan Schatzeder (1-0) L: Kent Tekulve (0-1) S: Jeff Reardon (3) | Second | 5 out |
| Tuesday, May 6 |
| » Defeated Phillies (9-13), 8-0 | Veteran's Stadium (2-0) | 13-10 | Won 4 |
| » W: Andy McGaffigan (2-0) L: Steve Carlton (1-5) | Second | 5 out |
| Wednesday, May 7 |
| » Defeated Phillies (9-14), 8-2 | Veteran's Stadium (3-0) | 14-10 | Won 5 |
| » W: Floyd Youmans (1-3) L: Shane Rawley (3-3) S: Tim Burke (3) | Second | 5 out |
| Friday, May 9 |
| » Defeated Dodgers (14-17), 8-4 | Stade Olympique (6-5) | 15-10 | Won 6 |
| » W: Jeff Reardon (5-2) L: Fernando Valenzuela (4-2) | Second | 5 out |
| Saturday, May 10 |
| » Defeated Dodgers (14-18), 3-2 | Stade Olympique (7-5) | 16-10 | Won 7 |
| » W: Dan Schatzeder (2-0) L: Ken Howell (0-2) | Second | 5 out |
| Sunday, May 11 |
| » Defeated Dodgers (14-19), 4-3 | Stade Olympique (8-5) | 17-10 | Won 8 |
| » W: Joe Hesketh (1-3) L: Bob Welch (3-2) S: Jeff Reardon (4) | Second | 4 out |
| Monday, May 12 |
| » Lost to Reds (8-19), 4-3 | Stade Olympique (8-6) | 17-11 | |
| » W: Ted Power (1-3) L: Bert Roberge (0-1) | Second | 5 out |
| Tuesday, May 13 |
| » Defeated Reds (8-20), 4-2 | Stade Olympique (9-6) | 18-11 | |
| » W: Floyd Youmans (2-3) L: Mario Soto (2-5) S: Jeff Reardon (5) | Second | 4 out |
| Wednesday, May 14 |
| » Defeated Braves (14-18), 3-2 | Stade Olympique (10-6) | 19-11 | Won 2 |
| » W: Bryn Smith (3-2) L: Zane Smith (3-3) S: Jeff Reardon (6) | Second | 3 out |
| Former Expo Joe Sparma dies in Columbus, OH at the age of 45. |
| Thursday, May 15 |
| » Lost to Braves (15-18), 7-4 | Stade Olympique (10-7) | 19-12 | |
| » W: Bruce Sutter (2-0) L: Dan Schatzeder (2-1) S: Jeff Dedmon (2) | Second | 4 out |
| Friday, May 16 |
| » Defeated Padres (17-17), 3-2 | San Diego/Jack Murphy Stadium (1-0) | 20-12 | |
| » W: Joe Hesketh (2-3) L: Andy Hawkins (2-3) S: Jeff Reardon (7) | Second | 3 out |
| Saturday, May 17 |
| » Lost to Padres (18-17), 5-3 | San Diego/Jack Murphy Stadium (1-1) | 20-13 | |
| » W: LaMarr Hoyt (1-1) L: Andy McGaffigan (2-1) S: Rich Gossage (7) | Second | 3 out |
| Sunday, May 18 |
| » Defeated Padres (18-18), 8-3 | San Diego/Jack Murphy Stadium (2-1) | 21-13 | |
| » W: Floyd Youmans (3-3) L: Mark Thurmond (2-3) | Second | 3 out |
| Tuesday, May 20 |
| » Lost to Dodgers (19-20), 4-0 | Dodger Stadium (0-1) | 21-14 | |
| » W: Fernando Valenzuela (6-2) L: Bryn Smith (3-3) | Second | 4 out |
| Wednesday, May 21 |
| » Lost to Dodgers (20-20), 6-1 | Dodger Stadium (0-2) | 21-15 | Lost 2 |
| » W: Orel Hershiser (4-3) L: Jay Tibbs (3-1) | Second | 5 out |
| Thursday, May 22 |
| » Defeated Dodgers (20-21), 5-2 | Dodger Stadium (1-2) | 22-15 | |
| » W: Joe Hesketh (3-3) L: Bob Welch (3-3) S: Jeff Reardon (8) | Second | 4 out |
| Friday, May 23 |
| » Defeated Giants (23-18), 4-3 | Candlestick Park (1-0) | 23-15 | Won 2 |
| » W: Floyd Youmans (4-3) L: Scott Garrelts (4-4) S: Jeff Reardon (9) | Second | 3 out |
| Saturday, May 24 |
| » Defeated Giants (23-19), 7-4 | Candlestick Park (2-0) | 24-15 | Won 3 |
| » W: Andy McGaffigan (3-1) L: Vida Blue (1-3) S: Jeff Reardon (10) | Second | 3 out |
| Sunday, May 25 |
| » Lost to Giants (24-19), 11-3 | Candlestick Park (2-1) | 24-16 | |
| » W: Mike LaCoss (5-1) L: Bryn Smith (3-4) | Second | 4 out |
| Monday, May 26 |
| » Lost to Padres (23-20), 9-6 | Stade Olympique (10-8) | 24-17 | Lost 2 |
| » W: Dave Dravecky (5-3) L: Jeff Parrett (0-1) | Second | 4½ out |
| Tuesday, May 27 |
| » Defeated Padres (23-21), 5-4 | Stade Olympique (11-8) | 25-17 | |
| » W: Tim Burke (2-0) L: Tim Stoddard (1-2) S: Jeff Reardon (11) | Second | 4½ out |
| Wednesday, May 28 |
| » Lost to Padres (24-21), 10-1 | Stade Olympique (11-9) | 25-18 | |
| » W: LaMarr Hoyt (2-1) L: Floyd Youmans (4-4) | Second | 5½ out |
| Thursday, May 29 |
| » Major-league debuts: Chuck Finley (Angels) |
| Friday, May 30 |
| » Defeated Astros (26-19), 1-0 | Astrodome (1-0) | 26-18 | |
| » W: Bryn Smith (4-4) L: Mike Scott (4-4) S: Jeff Reardon (12) | Second | 6 out |
| Saturday, May 31 |
| » Lost to Astros (27-19), 4-3 | Astrodome (1-1) | 26-19 | |
| » W: Frank DiPino (1-1) L: Tim Burke (2-1) S: Dave Smith (12) | Second | 6 out |
| Sunday, June 1 |
| » Lost to Astros (28-19), 8-4 | Astrodome (1-2) | 26-20 | Lost 2 |
| » W: Bob Knepper (9-2) L: Joe Hesketh (3-4) | Second | 6 out |
| Tuesday, June 3 |
| » Lost to Giants (27-23), 7-6 | Stade Olympique (11-10) | 26-21 | Lost 3 |
| » W: Vida Blue (2-3) L: Floyd Youmans (4-5) S: Mark Davis (3) | Second | 6½ out |
| Wednesday, June 4 |
| » Lost to Giants (28-23), 4-2 | Stade Olympique (11-11) | 26-22 | Lost 4 |
| » W: Jeff Robinson (3-1) L: Jeff Reardon (5-3) | Second | 7½ out |
| Thursday, June 5 |
| » Lost to Phillies (24-25), 7-3 | Stade Olympique (11-12) | 26-23 | Lost 5 |
| » W: Charles Hudson (4-3) L: Jay Tibbs (3-2) | Second | 8½ out |
| » Major-league debuts: Casey Candaele (Expos) |
| Friday, June 6 |
| » Defeated Phillies (24-26), 10-9 | Stade Olympique (12-12) | 27-23 | |
| » W: Tim Burke (3-1) L: Dave Rucker (0-2) | Second | 8 out |
| Saturday, June 7 |
| » Lost to Phillies (25-26), 3-1 | Stade Olympique (12-13) | 27-24 | |
| » W: Shane Rawley (8-4) L: Andy McGaffigan (3-2) | Second | 9 out |
| Sunday, June 8 |
| » Defeated Phillies (25-27), 12-0 | Stade Olympique (13-13) | 28-24 | |
| » W: Floyd Youmans (5-5) L: Mike Maddux (0-2) | Second | 9 out |
| Monday, June 9 |
| » Defeated Cardinals (22-31), 5-4 | Busch Stadium II (2-2) | 29-24 | Won 2 |
| » W: Tim Burke (4-1) L: Todd Worrell (3-4) S: Jeff Reardon (13) | Second | 8 out |
| Tuesday, June 10 |
| » Defeated Cardinals (22-32), 4-2 | Busch Stadium II (3-2) | 30-24 | Won 3 |
| » W: Jay Tibbs (4-2) L: Bob Forsch (5-4) S: Jeff Reardon (14) | Second | 8 out |
| Wednesday, June 11 |
| » Defeated Cardinals (22-33), 4-3 | Busch Stadium II (4-2) | 31-24 | Won 4 |
| » W: Jeff Reardon (6-3) L: Greg Bargar (0-2) S: Bert Roberge (1) | Second | 8 out |
| Friday, June 13 |
| » Lost to Phillies (27-29), 2-1 | Veteran's Stadium (3-1) | 31-25 | |
| » W: Shane Rawley (9-4) L: Tim Burke (4-2) | Second | 9 out |
| Saturday, June 14 |
| » Lost to Phillies (28-29), 7-6 | Veteran's Stadium (3-2) | 31-26 | Lost 2 |
| » W: Randy Lerch (1-1) L: Bert Roberge (0-2) S: Steve Bedrosian (9) | Second | 10 out |
| Sunday, June 15 |
| » Defeated Phillies (28-30), 2-0 | Veteran's Stadium (4-2) | 32-26 | |
| » W: Andy McGaffigan (4-2) L: Charles Hudson (4-4) S: Jeff Reardon (15) | Second | 10½ out |
| Monday, June 16 |
| » Lost to Mets (44-16), 4-1 | Stade Olympique (13-14) | 32-27 | |
| » W: Doug Sisk (1-1) L: Jeff Reardon (6-4) | Second | 11½ out |
| » Game at Three Rivers Stadium interrupted in the 6th inning with the score of Cardinals 4, Pirates 1. Completed on June 18. |
| Tuesday, June 17 |
| » Defeated Mets (44-17), 4-2 | Stade Olympique (14-14) | 33-27 | |
| » W: Joe Hesketh (4-4) L: Bruce Berenyi (2-1) S: Tim Burke (4) | Second | 10½ out |
| Wednesday, June 18 |
| » Defeated Mets (44-18), 7-4 | Stade Olympique (15-14) | 34-27 | Won 2 |
| » W: Floyd Youmans (6-5) L: Dwight Gooden (8-3) S: Jeff Reardon (16) | Second | 9½ out |
| Thursday, June 19 |
| » Lost to Pirates (26-36), 4-2 | Stade Olympique (15-15) | 34-28 | |
| » W: Bob Kipper (3-6) L: Bryn Smith (4-5) S: Cecilio Guante (3) | Second | 10 out |
| Friday, June 20 |
| » Defeated Pirates (26-37), 7-2 | Stade Olympique (16-15) | 35-28 | |
| » W: Andy McGaffigan (5-2) L: Bob Walk (2-4) S: Bob McClure (1) | Second | 10 out |
| Saturday, June 21 |
| » Lost to Pirates (27-37), 14-1 | Stade Olympique (16-16) | 35-29 | |
| » W: Rick Rhoden (7-4) L: Jay Tibbs (4-3) | Second | 10 out |
| Sunday, June 22 |
| » Defeated Pirates (27-38), 2-1 | Stade Olympique (17-16) | 36-29 | |
| » W: Joe Hesketh (5-4) L: Rick Reuschel (4-7) S: Jeff Reardon (17) | Second | 10 out |
| Monday, June 23 |
| » Defeated Mets (46-20), 5-4 | Shea Stadium (1-0) | 37-29 | Won 2 |
| » W: Tim Burke (5-2) L: Jesse Orosco (3-4) | Second | 9 out |
| Tuesday, June 24 |
| » Defeated Mets (46-21), 6-2 | Shea Stadium (2-0) | 38-29 | Won 3 |
| » W: Bryn Smith (5-5) L: Bruce Berenyi (2-2) S: Bob McClure (2) | Second | 8 out |
| Wednesday, June 25 |
| » Lost to Mets (47-21), 5-2 | Shea Stadium (2-1) | 38-30 | |
| » W: Sid Fernandez (9-2) L: Andy McGaffigan (5-3) S: Roger McDowell (6) | Second | 9 out |
| Friday, June 27 |
| » Lost to Pirates (28-41), 7-1 | Three Rivers Stadium (0-1) | 38-31 | Lost 2 |
| » W: Rick Rhoden (8-4) L: Jay Tibbs (4-4) | Second | 9½ out |
| Saturday, June 28 |
| » Defeated Pirates (28-42), 3-2 | Three Rivers Stadium (1-1) | 39-31 | |
| » W: Joe Hesketh (6-4) L: Rick Reuschel (4-8) S: Jeff Reardon (18) | Second | 9½ out |
| Sunday, June 29 |
| » Defeated Pirates (28-43), 6-4 | Three Rivers Stadium (2-1) | 40-31 | Won 2 |
| » W: Floyd Youmans (7-5) L: Mike Bielecki (4-5) S: Bob McClure (3) | Second | 9½ out |
| Monday, June 30 |
| » Defeated Cubs (29-43), 4-3 | Wrigley Field (3-2) | 41-31 | Won 3 |
| » W: Dan Schatzeder (3-1) L: Lee Smith (4-6) S: Bob McClure (4) | Second | 9½ out |
| Wednesday, July 2 |
| » Lost to Cubs (30-43), 1-0 | Wrigley Field (3-3) | 41-32 | |
| » W: Dave Gumpert (1-0) L: Dan Schatzeder (3-2) S: Lee Smith (12) | Second | 11½ out |
| » Lost to Cubs (31-43), 5-4 | Wrigley Field (3-4) | 41-33 | Lost 2 |
| » W: Lee Smith (5-6) L: Bob McClure (2-2) | Second | 11½ out |
| Thursday, July 3 |
| » Lost to Braves (41-37), 3-1 | Atlanta-Fulton County Stadium (1-2) | 41-34 | Lost 3 |
| » W: David Palmer (5-6) L: Joe Hesketh (6-5) S: Gene Garber (9) | Second | 12½ out |
| Friday, July 4 |
| » Defeated Braves (41-38), 11-5 | Atlanta-Fulton County Stadium (2-2) | 42-34 | |
| » W: Floyd Youmans (8-5) L: Rick Mahler (10-6) | Second | 12½ out |
| Saturday, July 5 |
| » Defeated Braves (41-39), 12-5 | Atlanta-Fulton County Stadium (3-2) | 43-34 | Won 2 |
| » W: Bryn Smith (6-5) L: Craig McMurtry (1-5) S: Dan Schatzeder (1) | Second | 11½ out |
| Sunday, July 6 |
| » Defeated Braves (41-40), 11-8 | Atlanta-Fulton County Stadium (4-2) | 44-34 | Won 3 |
| » W: Tim Burke (6-2) L: Zane Smith (7-9) S: Jeff Reardon (19) | Second | 11½ out |
| Monday, July 7 |
| » Lost to Astros (44-38), 12-1 | Stade Olympique (17-17) | 44-35 | |
| » W: Mike Scott (9-5) L: Dennis Martinez (0-1) | Second | 11½ out |
| Tuesday, July 8 |
| » Lost to Astros (45-38), 4-1 | Stade Olympique (17-18) | 44-36 | Lost 2 |
| » W: Nolan Ryan (5-6) L: Jay Tibbs (4-5) S: Charlie Kerfeld (3) | Second | 11½ out |
| Wednesday, July 9 |
| » Defeated Astros (45-39), 2-1 | Stade Olympique (18-18) | 45-36 | |
| » W: Floyd Youmans (9-5) L: Bob Knepper (10-7) | Second | 10½ out |
| Thursday, July 10 |
| » Defeated Reds (38-44), 8-6 | Stade Olympique (19-18) | 46-36 | Won 2 |
| » W: Bryn Smith (7-5) L: Chris Welsh (3-3) S: Jeff Reardon (20) | Second | 10½ out |
| Friday, July 11 |
| » Lost to Reds (39-44), 3-2 | Stade Olympique (19-19) | 46-37 | |
| » W: Bill Gullickson (6-6) L: Andy McGaffigan (5-4) S: John Franco (14) | Second | 11½ out |
| Saturday, July 12 |
| » Lost to Reds (40-44), 2-0 | Stade Olympique (19-20) | 46-38 | Lost 2 |
| » W: John Denny (6-8) L: Dennis Martinez (0-2) S: Ron Robinson (7) | Second | 12½ out |
| Sunday, July 13 |
| » Game at Riverfront Stadium interrupted in the 6th inning with the score of Reds 3, Expos 2. Completed on July 24. |
| Thursday, July 17 |
| » Defeated Braves (42-47), 4-2 | Stade Olympique (20-20) | 47-38 | |
| » W: Floyd Youmans (10-5) L: Rick Mahler (10-9) S: Jeff Reardon (21) | Second | 13 out |
| Friday, July 18 |
| » Defeated Braves (42-48), 5-4 | Stade Olympique (21-20) | 48-38 | Won 2 |
| » W: Tim Burke (7-2) L: Jeff Dedmon (3-4) S: Jeff Reardon (22) | Second | 12 out |
| Saturday, July 19 |
| » Lost to Braves (43-48), 7-2 | Stade Olympique (21-21) | 48-39 | |
| » W: David Palmer (6-8) L: Jay Tibbs (4-6) S: Gene Garber (11) | Second | 12 out |
| Monday, July 21 |
| » Lost to Astros (51-42), 8-7 | Astrodome (1-3) | 48-40 | Lost 2 |
| » W: Charlie Kerfeld (7-1) L: Jeff Reardon (6-5) | Second | 12½ out |
| Tuesday, July 22 |
| » Lost to Astros (52-42), 1-0 | Astrodome (1-4) | 48-41 | Lost 3 |
| » W: Dave Smith (3-6) L: Floyd Youmans (10-6) | Second | 13½ out |
| Wednesday, July 23 |
| » Lost to Astros (53-42), 4-3 | Astrodome (1-5) | 48-42 | Lost 4 |
| » W: Aurelio Lopez (2-1) L: Tim Burke (7-3) | Second | 14½ out |
| Thursday, July 24 |
| » Lost to Reds (44-48), 10-2 | Stade Olympique (21-22) | 48-43 | Lost 5 |
| » W: Tom Browning (9-7) L: Tim Burke (7-4) | Second | 14½ out |
| » Defeated Reds (44-49), 6-5 | Riverfront Stadium (3-0) | 49-43 | |
| » W: Bob Sebra (1-0) L: Carl Willis (1-2) | Second | 14½ out |
| Friday, July 25 |
| » Lost to Reds (45-49), 9-2 | Riverfront Stadium (3-1) | 49-44 | |
| » W: John Denny (7-9) L: Dennis Martinez (0-3) | Second | 15 out |
| Saturday, July 26 |
| » Lost to Reds (46-49), 7-6 | Riverfront Stadium (3-2) | 49-45 | Lost 2 |
| » W: Ron Robinson (8-1) L: Bob Sebra (1-1) | Second | 14½ out |
| Sunday, July 27 |
| » Lost to Reds (47-49), 9-7 | Riverfront Stadium (3-3) | 49-46 | Lost 3 |
| » W: Rob Murphy (1-0) L: Jeff Reardon (6-6) S: John Franco (16) | Second | 15½ out |
| Monday, July 28 |
| » Lost to Pirates (40-56), 7-4 | Stade Olympique (21-23) | 49-47 | Lost 4 |
| » W: Rick Reuschel (6-12) L: Bryn Smith (7-6) S: Barry Jones (2) | Second | 16½ out |
| Wednesday, July 30 |
| » Defeated Pirates (40-57), 3-2 | Stade Olympique (22-23) | 50-47 | |
| » W: Jay Tibbs (5-6) L: Jim Winn (2-4) S: Jeff Reardon (23) | Second | 15½ out |
| Friday, August 1 |
| » Lost to Mets (67-32), 3-1 | Shea Stadium (2-2) | 50-48 | |
| » W: Dwight Gooden (11-4) L: Floyd Youmans (10-7) S: Roger McDowell (11) | Second | 16½ out |
| Saturday, August 2 |
| » Lost to Mets (68-32), 4-1 | Shea Stadium (2-3) | 50-49 | Lost 2 |
| » W: Rick Aguilera (5-3) L: Bob Sebra (1-2) S: Jesse Orosco (14) | Third | 17½ out |
| Sunday, August 3 |
| » Lost to Mets (69-32), 4-3 | Shea Stadium (2-4) | 50-50 | Lost 3 |
| » W: Roger McDowell (9-5) L: Bob McClure (2-3) | Third | 18½ out |
| » Major-league debuts: Luis Rivera (Expos) |
| Monday, August 4 |
| » Defeated Pirates (42-59), 5-4 | Three Rivers Stadium (3-1) | 51-50 | |
| » W: Jay Tibbs (6-6) L: Barry Jones (0-1) S: Jeff Reardon (24) | Third | 17½ out |
| Tuesday, August 5 |
| » Defeated Pirates (42-60), 3-0 | Three Rivers Stadium (4-1) | 52-50 | Won 2 |
| » W: Dennis Martinez (1-3) L: Mike Bielecki (6-7) | Second | 16½ out |
| Wednesday, August 6 |
| » Defeated Pirates (42-61), 3-2 | Three Rivers Stadium (5-1) | 53-50 | Won 3 |
| » W: Floyd Youmans (11-7) L: Rick Rhoden (11-7) S: Jeff Reardon (25) | Second | 16½ out |
| Thursday, August 7 |
| » Defeated Pirates (42-62), 5-4 | Three Rivers Stadium (6-1) | 54-50 | Won 4 |
| » W: Andy McGaffigan (6-4) L: Don Robinson (2-1) S: Bob McClure (5) | Second | 17 out |
| Friday, August 8 |
| » Defeated Mets (72-35), 5-3 | Stade Olympique (23-23) | 55-50 | Won 5 |
| » W: Bryn Smith (8-6) L: Bob Ojeda (12-3) S: Jeff Reardon (26) | Second | 16 out |
| Saturday, August 9 |
| » Lost to Mets (73-35), 10-8 | Stade Olympique (23-24) | 55-51 | |
| » W: Roger McDowell (11-6) L: Jeff Reardon (6-7) S: Jesse Orosco (16) | Second | 17 out |
| Sunday, August 10 |
| » Lost to Mets (74-35), 7-2 | Stade Olympique (23-25) | 55-52 | Lost 2 |
| » W: Sid Fernandez (13-4) L: Dennis Martinez (1-4) S: Rick Anderson (2) | Second | 18 out |
| Monday, August 11 |
| » Lost to Cardinals (54-56), 5-4 | Stade Olympique (23-26) | 55-53 | Lost 3 |
| » W: Greg Mathews (8-3) L: Floyd Youmans (11-8) S: Todd Worrell (25) | Second | 19 out |
| Tuesday, August 12 |
| » Defeated Cardinals (54-57), 10-3 | Stade Olympique (24-26) | 56-53 | |
| » W: Bob Sebra (2-2) L: John Tudor (11-6) | Second | 18 out |
| Wednesday, August 13 |
| » Lost to Cardinals (55-57), 6-2 | Stade Olympique (24-27) | 56-54 | |
| » W: Danny Cox (7-9) L: Bryn Smith (8-7) | Second | 18 out |
| Thursday, August 14 |
| » Defeated Cubs (50-64), 5-4 | Stade Olympique (25-27) | 57-54 | |
| » W: Andy McGaffigan (7-4) L: Ron Davis (2-7) | Second | 17½ out |
| Friday, August 15 |
| » Defeated Cubs (50-65), 5-2 | Stade Olympique (26-27) | 58-54 | Won 2 |
| » W: Dennis Martinez (2-4) L: Steve Trout (5-6) S: Andy McGaffigan (1) | Second | 16 out |
| » Defeated Cubs (50-66), 5-1 | Stade Olympique (27-27) | 59-54 | Won 3 |
| » W: Tim Burke (8-4) L: Ed Lynch (3-2) S: Bob McClure (6) | Second | 16 out |
| Saturday, August 16 |
| » Lost to Cubs (51-66), 5-0 | Stade Olympique (27-28) | 59-55 | |
| » W: Jamie Moyer (4-3) L: Floyd Youmans (11-9) | Second | 16 out |
| Sunday, August 17 |
| » Lost to Cubs (52-66), 2-1 | Stade Olympique (27-29) | 59-56 | Lost 2 |
| » W: Lee Smith (8-7) L: Jeff Reardon (6-8) | Second | 16½ out |
| Tuesday, August 19 |
| » Lost to Padres (56-64), 7-1 | San Diego/Jack Murphy Stadium (2-2) | 59-57 | Lost 3 |
| » W: Andy Hawkins (9-8) L: Bryn Smith (8-8) | Second | 18 out |
| Wednesday, August 20 |
| » Lost to Padres (57-64), 3-2 | San Diego/Jack Murphy Stadium (2-3) | 59-58 | Lost 4 |
| » W: Eric Show (9-5) L: Jay Tibbs (6-7) S: Rich Gossage (21) | Third | 19 out |
| Thursday, August 21 |
| » Lost to Padres (58-64), 6-0 | San Diego/Jack Murphy Stadium (2-4) | 59-59 | Lost 5 |
| » W: Dave Dravecky (9-10) L: Dennis Martinez (2-5) S: Gene Walter (1) | Third | 19½ out |
| Friday, August 22 |
| » Lost to Dodgers (59-63), 2-1 | Dodger Stadium (1-3) | 59-60 | Lost 6 |
| » W: Ken Howell (5-8) L: Tim Burke (8-5) | Third | 20½ out |
| Saturday, August 23 |
| » Defeated Dodgers (59-64), 7-4 | Dodger Stadium (2-3) | 60-60 | |
| » W: Bob Sebra (3-2) L: Rick Honeycutt (9-8) S: Jeff Reardon (27) | Third | 20½ out |
| Sunday, August 24 |
| » Lost to Dodgers (60-64), 3-2 | Dodger Stadium (2-4) | 60-61 | |
| » W: Brian Holton (1-0) L: Tim Burke (8-6) | Third | 20½ out |
| Monday, August 25 |
| » Defeated Giants (63-62), 6-5 | Candlestick Park (3-1) | 61-61 | |
| » W: Andy McGaffigan (8-4) L: Mike LaCoss (9-9) S: Jeff Reardon (28) | Third | 20½ out |
| Tuesday, August 26 |
| » Lost to Giants (64-62), 1-0 | Candlestick Park (3-2) | 61-62 | |
| » W: Scott Garrelts (11-9) L: Bert Roberge (0-3) | Third | 21½ out |
| Wednesday, August 27 |
| » Lost to Giants (65-62), 3-2 | Candlestick Park (3-3) | 61-63 | Lost 2 |
| » W: Kelly Downs (1-4) L: Andy McGaffigan (8-5) S: Scott Garrelts (6) | Fourth | 22½ out |
| Saturday, August 30 |
| » Defeated Padres (59-70), 10-1 | Stade Olympique (28-29) | 62-63 | |
| » W: Bryn Smith (9-8) L: LaMarr Hoyt (7-9) | Fourth | 23½ out |
| » Lost to Padres (60-70), 5-4 | Stade Olympique (28-30) | 62-64 | |
| » W: Lance McCullers (7-6) L: Bob McClure (2-4) | Fourth | 23½ out |
| Sunday, August 31 |
| » Lost to Padres (61-70), 4-1 | Stade Olympique (28-31) | 62-65 | Lost 2 |
| » W: Ed Wojna (1-0) L: Jay Tibbs (6-8) S: Lance McCullers (2) | Fourth | 23½ out |
| Monday, September 1 |
| » Defeated Dodgers (62-69), 7-6 | Stade Olympique (29-31) | 63-65 | |
| » W: Jeff Reardon (7-8) L: Ken Howell (5-9) | Fourth | 23½ out |
| Tuesday, September 2 |
| » Defeated Dodgers (62-70), 1-0 | Stade Olympique (30-31) | 64-65 | Won 2 |
| » W: Floyd Youmans (12-9) L: Bob Welch (6-11) | Fourth | 22½ out |
| Wednesday, September 3 |
| » Lost to Dodgers (63-70), 5-3 | Stade Olympique (30-32) | 64-66 | |
| » W: Rick Honeycutt (10-9) L: Bob Sebra (3-3) S: Ken Howell (12) | Fourth | 23½ out |
| Thursday, September 4 |
| » Defeated Giants (66-68), 4-2 | Stade Olympique (31-32) | 65-66 | |
| » W: Bryn Smith (10-8) L: Mike LaCoss (9-11) S: Jeff Reardon (29) | Fourth | 23 out |
| Friday, September 5 |
| » Lost to Giants (67-68), 8-4 | Stade Olympique (31-33) | 65-67 | |
| » W: Scott Garrelts (12-9) L: Tim Burke (8-7) | Fourth | 23½ out |
| Saturday, September 6 |
| » Defeated Giants (67-69), 3-1 | Stade Olympique (32-33) | 66-67 | |
| » W: Bob McClure (3-4) L: Frank Williams (2-1) S: Jeff Reardon (30) | Fourth | 23½ out |
| Sunday, September 7 |
| » Lost to Giants (68-69), 1-0 | Stade Olympique (32-34) | 66-68 | |
| » W: Mike Krukow (15-8) L: Floyd Youmans (12-10) | Fourth | 25 out |
| Monday, September 8 |
| » Defeated Mets (92-45), 9-1 | Shea Stadium (3-4) | 67-68 | |
| » W: Bob Sebra (4-3) L: Bob Ojeda (16-5) | Third | 24 out |
| Tuesday, September 9 |
| » Defeated Mets (92-46), 9-7 | Shea Stadium (4-4) | 68-68 | Won 2 |
| » W: Tim Burke (9-7) L: Jesse Orosco (6-6) S: Jeff Reardon (31) | Third | 23 out |
| Wednesday, September 10 |
| » Lost to Mets (93-46), 6-1 | Shea Stadium (4-5) | 68-69 | |
| » W: Ron Darling (13-5) L: Sergio Valdez (0-1) | Fourth | 24 out |
| » Major-league debuts: Sergio Valdez (Expos) |
| Friday, September 12 |
| » Defeated Cardinals (70-70), 4-3 | Busch Stadium II (5-2) | 69-69 | |
| » W: Andy McGaffigan (9-5) L: Joe Boever (0-1) S: Jeff Reardon (32) | Third | 23 out |
| Saturday, September 13 |
| » Defeated Cardinals (70-71), 5-1 | Busch Stadium II (6-2) | 70-69 | Won 2 |
| » W: Dennis Martinez (3-5) L: Greg Mathews (10-6) S: Jeff Reardon (33) | Third | 22 out |
| Sunday, September 14 |
| » Lost to Cardinals (71-71), 10-2 | Busch Stadium II (6-3) | 70-70 | |
| » W: Danny Cox (10-12) L: Bob Sebra (4-4) | Third | 22 out |
| Monday, September 15 |
| » Lost to Cubs (61-82), 7-3 | Stade Olympique (32-35) | 70-71 | Lost 2 |
| » W: Jamie Moyer (6-4) L: Sergio Valdez (0-2) S: Scott Sanderson (1) | Fourth | 22 out |
| Tuesday, September 16 |
| » Defeated Cubs (61-83), 4-1 | Stade Olympique (33-35) | 71-71 | |
| » W: Jay Tibbs (7-8) L: Rick Sutcliffe (4-14) | Third | 22 out |
| Wednesday, September 17 |
| » Defeated Pirates (58-86), 6-5 | Stade Olympique (34-35) | 72-71 | Won 2 |
| » W: Randy St. Claire (1-0) L: Barry Jones (2-4) S: Jeff Reardon (34) | Fourth | 22½ out |
| » Lost to Pirates (59-86), 4-1 | Stade Olympique (34-36) | 72-72 | |
| » W: Bob Kipper (5-7) L: Bob Sebra (4-5) S: Don Robinson (12) | Fourth | 22½ out |
| Thursday, September 18 |
| » Lost to Pirates (60-86), 3-1 | Stade Olympique (34-37) | 72-73 | Lost 2 |
| » W: John Smiley (1-0) L: Jeff Reardon (7-9) S: Don Robinson (13) | Fourth | 23½ out |
| Friday, September 19 |
| » Defeated Cardinals (73-74), 3-2 | Stade Olympique (35-37) | 73-73 | |
| » W: Bob McClure (4-4) L: Pat Perry (2-3) | Third | 22½ out |
| Saturday, September 20 |
| » Lost to Cardinals (74-74), 3-1 | Stade Olympique (35-38) | 73-74 | |
| » W: Ricky Horton (4-3) L: Sergio Valdez (0-3) | Fourth | 23½ out |
| Sunday, September 21 |
| » Lost to Cardinals (75-74), 7-2 | Stade Olympique (35-39) | 73-75 | Lost 2 |
| » W: Tim Conroy (5-9) L: Jay Tibbs (7-9) | Fourth | 23½ out |
| Monday, September 22 |
| » Defeated Cubs (64-86), 5-2 | Wrigley Field (4-4) | 74-75 | |
| » W: Floyd Youmans (13-10) L: Dennis Eckersley (6-11) S: Jeff Reardon (35) | Fourth | 23½ out |
| Tuesday, September 23 |
| » Defeated Cubs (64-87), 10-5 | Wrigley Field (5-4) | 75-75 | Won 2 |
| » W: Randy St. Claire (2-0) L: Greg Maddux (1-4) S: Andy McGaffigan (2) | Third | 23½ out |
| Wednesday, September 24 |
| » Lost to Pirates (62-90), 2-1 | Three Rivers Stadium (6-2) | 75-76 | |
| » W: Don Robinson (3-4) L: Bob McClure (4-5) | Fourth | 23½ out |
| Thursday, September 25 |
| » Defeated Pirates (62-91), 8-4 | Three Rivers Stadium (7-2) | 76-76 | |
| » W: Bob Owchinko (1-0) L: Rick Rhoden (15-11) | Fourth | 23½ out |
| Friday, September 26 |
| » Lost to Phillies (81-73), 5-0 | Stade Olympique (35-40) | 76-77 | |
| » W: Marvin Freeman (2-0) L: Sergio Valdez (0-4) S: Kent Tekulve (4) | Fourth | 24½ out |
| Saturday, September 27 |
| » Lost to Phillies (82-73), 1-0 | Stade Olympique (35-41) | 76-78 | Lost 2 |
| » W: Don Carman (10-5) L: Floyd Youmans (13-11) S: Steve Bedrosian (28) | Fourth | 25½ out |
| Sunday, September 28 |
| » Lost to Phillies (83-73), 5-2 | Stade Olympique (35-42) | 76-79 | Lost 3 |
| » W: Kevin Gross (12-12) L: Dennis Martinez (3-6) S: Steve Bedrosian (29) | Fourth | 26½ out |
| Tuesday, September 30 |
| » Defeated Mets (103-54), 1-0 | Stade Olympique (36-42) | 77-79 | |
| » W: Bob Sebra (5-5) L: Ron Darling (14-6) | Fourth | 25½ out |
| Wednesday, October 1 |
| » Lost to Mets (104-54), 6-4 | Stade Olympique (36-43) | 77-80 | |
| » W: Jesse Orosco (8-6) L: Bob McClure (4-6) S: Roger McDowell (21) | Fourth | 26½ out |
| Thursday, October 2 |
| » Lost to Mets (105-54), 8-2 | Stade Olympique (36-44) | 77-81 | Lost 2 |
| » W: Dwight Gooden (17-6) L: Floyd Youmans (13-12) | Fourth | 27½ out |
| Friday, October 3 |
| » Defeated Phillies (84-75), 6-5 | Veteran's Stadium (5-2) | 78-81 | |
| » W: Andy McGaffigan (10-5) L: Kent Tekulve (11-5) S: Randy St. Claire (1) | Fourth | 27 out |
| Saturday, October 4 |
| » Lost to Phillies (85-75), 5-4 | Veteran's Stadium (5-3) | 78-82 | |
| » W: Dan Schatzeder (5-5) L: Bert Roberge (0-4) | Fourth | 28½ out |
| Sunday, October 5 |
| » Lost to Phillies (86-75), 2-1 | Veteran's Stadium (5-4) | 78-83 | Lost 2 |
| » W: Dan Schatzeder (6-5) L: Curt Brown (0-1) | Fourth | 29½ out |
Game information provided by Retrosheet (www.retrosheet.org) |