| Tuesday, January 20 |
| Former Pirate Hank Behrman dies in New York, NY at the age of 66. |
| Monday, February 9 |
| Former Pirate Larry French dies in San Diego, CA at the age of 80. |
| Monday, April 6 |
| » Major-league debuts: Mike Sharperson (Blue Jays) |
| Tuesday, April 7 |
| » Lost to Mets (1-0), 3-2 | Shea Stadium (0-1) | 0-1 | |
| » W: Bob Ojeda (1-0) L: Bob Patterson (0-1) S: Jesse Orosco (1) | Second | 1 out |
| Thursday, April 9 |
| » Lost to Mets (2-0), 4-2 | Shea Stadium (0-2) | 0-2 | Lost 2 |
| » W: Gene Walter (1-0) L: Logan Easley (0-1) S: Jesse Orosco (2) | Second | 2 out |
| » Major-league debuts: Logan Easley (Pirates) |
| Friday, April 10 |
| » Defeated Cardinals (2-1), 4-3 | Three Rivers Stadium (1-0) | 1-2 | |
| » W: Don Robinson (1-0) L: Dave LaPoint (0-1) | Third | 2 out |
| Saturday, April 11 |
| » Lost to Cardinals (3-1), 6-3 | Three Rivers Stadium (1-1) | 1-3 | |
| » W: Bob Forsch (1-0) L: Bob Kipper (0-1) S: Todd Worrell (2) | Third | 2 out |
| Sunday, April 12 |
| » Defeated Cardinals (3-2), 7-4 | Three Rivers Stadium (2-1) | 2-3 | |
| » W: Bob Patterson (1-1) L: John Tudor (1-1) S: Don Robinson (1) | Second | 1 out |
| » Major-league debuts: Tom Pagnozzi (Cardinals) |
| Monday, April 13 |
| » Lost to Cardinals (4-2), 8-4 | Three Rivers Stadium (2-2) | 2-4 | |
| » W: Danny Cox (2-0) L: Doug Drabek (0-1) S: Ricky Horton (1) | Fourth | 2 out |
| Tuesday, April 14 |
| » Major-league debuts: Al Pedrique (Mets) |
| Wednesday, April 15 |
| » Defeated Cubs (3-4), 3-1 | Wrigley Field (1-0) | 3-4 | |
| » W: Don Robinson (2-0) L: Dickie Noles (0-1) | Third | 2 out |
| Thursday, April 16 |
| » Defeated Cubs (3-5), 6-0 | Wrigley Field (2-0) | 4-4 | Won 2 |
| » W: Bob Kipper (1-1) L: Ed Lynch (1-1) | Second | 2 out |
| Friday, April 17 |
| » Lost to Phillies (2-8), 6-2 | Three Rivers Stadium (2-3) | 4-5 | |
| » W: Steve Bedrosian (2-1) L: Barry Jones (0-1) | Third | 2 out |
| Saturday, April 18 |
| » Lost to Phillies (3-8), 8-6 | Three Rivers Stadium (2-4) | 4-6 | Lost 2 |
| » W: Kent Tekulve (1-0) L: Don Robinson (2-1) | Second | 2 out |
| Sunday, April 19 |
| » Defeated Phillies (3-9), 5-2 | Three Rivers Stadium (3-4) | 5-6 | |
| » W: Doug Drabek (1-1) L: Bruce Ruffin (0-1) S: Don Robinson (2) | Third | 2 out |
| Monday, April 20 |
| » Defeated Mets (6-6), 9-6 | Three Rivers Stadium (4-4) | 6-6 | Won 2 |
| » W: Logan Easley (1-1) L: Randy Myers (0-1) | Second | 1½ out |
| Tuesday, April 21 |
| » Lost to Mets (7-6), 9-6 | Three Rivers Stadium (4-5) | 6-7 | |
| » W: Bob Ojeda (2-2) L: Bob Kipper (1-2) S: Jesse Orosco (4) | Third | 1½ out |
| Wednesday, April 22 |
| » Lost to Mets (8-6), 8-7 | Three Rivers Stadium (4-6) | 6-8 | Lost 2 |
| » W: Ron Darling (2-0) L: Bob Patterson (1-2) S: Jesse Orosco (5) | Fourth | 2 out |
| Saturday, April 25 |
| » Lost to Phillies (5-11), 3-2 | Veteran's Stadium (0-1) | 6-9 | Lost 3 |
| » W: Don Carman (1-1) L: Doug Drabek (1-2) S: Kent Tekulve (2) | Third | 2½ out |
| Sunday, April 26 |
| » Lost to Phillies (6-11), 6-4 | Veteran's Stadium (0-2) | 6-10 | Lost 4 |
| » W: Bruce Ruffin (1-1) L: Rick Reuschel (0-1) S: Steve Bedrosian (1) | Third | 3½ out |
| Tuesday, April 28 |
| » Defeated Dodgers (11-10), 6-1 | Three Rivers Stadium (5-6) | 7-10 | |
| » W: Bob Kipper (2-2) L: Fernando Valenzuela (3-1) S: Logan Easley (1) | Fourth | 2½ out |
| Wednesday, April 29 |
| » Lost to Dodgers (12-10), 10-2 | Three Rivers Stadium (5-7) | 7-11 | |
| » W: Bob Welch (3-1) L: Bob Patterson (1-3) | Fourth | 3½ out |
| Thursday, April 30 |
| » Defeated Dodgers (12-11), 5-4 | Three Rivers Stadium (6-7) | 8-11 | |
| » W: John Smiley (1-0) L: Orel Hershiser (2-3) S: Don Robinson (3) | Fourth | 3½ out |
| Friday, May 1 |
| » Defeated Giants (16-8), 4-2 | Three Rivers Stadium (7-7) | 9-11 | Won 2 |
| » W: Rick Reuschel (1-1) L: Mark Davis (3-1) | Fourth | 3½ out |
| Saturday, May 2 |
| » Defeated Giants (16-9), 1-0 | Three Rivers Stadium (8-7) | 10-11 | Won 3 |
| » W: John Smiley (2-0) L: Kelly Downs (2-1) S: Don Robinson (4) | Third | 2½ out |
| Monday, May 4 |
| » Lost to Padres (7-20), 9-5 | San Diego/Jack Murphy Stadium (0-1) | 10-12 | |
| » W: Storm Davis (1-4) L: Bob Patterson (1-4) S: Lance McCullers (3) | Fourth | 3 out |
| Tuesday, May 5 |
| » Defeated Padres (7-21), 10-8 | San Diego/Jack Murphy Stadium (1-1) | 11-12 | |
| » W: Bob Walk (1-0) L: Eric Show (1-2) S: Don Robinson (5) | Fourth | 2 out |
| Wednesday, May 6 |
| » Lost to Dodgers (15-13), 2-1 | Dodger Stadium (0-1) | 11-13 | |
| » W: Orel Hershiser (3-3) L: Rick Reuschel (1-2) | Fifth | 3 out |
| Thursday, May 7 |
| » Lost to Dodgers (16-13), 6-3 | Dodger Stadium (0-2) | 11-14 | Lost 2 |
| » W: Rick Honeycutt (1-1) L: Bob Kipper (2-3) S: Matt Young (2) | Fifth | 3½ out |
| Former Pirate Boom Beck dies in Champaign, IL at the age of 83. |
| Friday, May 8 |
| » Lost to Giants (20-10), 4-2 | Candlestick Park (0-1) | 11-15 | Lost 3 |
| » W: Kelly Downs (3-1) L: Brian Fisher (0-1) S: Scott Garrelts (5) | Fifth | 4½ out |
| Saturday, May 9 |
| » Lost to Giants (21-10), 9-4 | Candlestick Park (0-2) | 11-16 | Lost 4 |
| » W: Atlee Hammaker (1-0) L: Bob Walk (1-1) | Fifth | 5 out |
| Sunday, May 10 |
| » Defeated Giants (21-11), 4-1 | Candlestick Park (1-2) | 12-16 | |
| » W: Don Robinson (3-1) L: Scott Garrelts (4-3) | Fifth | 4 out |
| Tuesday, May 12 |
| » Defeated Padres (8-26), 12-5 | Three Rivers Stadium (9-7) | 13-16 | Won 2 |
| » W: Rick Reuschel (2-2) L: Andy Hawkins (0-5) | Fifth | 3½ out |
| Wednesday, May 13 |
| » Defeated Padres (8-27), 9-5 | Three Rivers Stadium (10-7) | 14-16 | Won 3 |
| » W: Bob Walk (2-1) L: Craig Lefferts (0-1) S: Don Robinson (6) | Fourth | 3½ out |
| Thursday, May 14 |
| » Defeated Padres (8-28), 10-3 | Three Rivers Stadium (11-7) | 15-16 | Won 4 |
| » W: Brian Fisher (1-1) L: Eric Show (1-4) S: John Smiley (1) | Third | 3 out |
| Friday, May 15 |
| » Lost to Braves (18-17), 9-3 | Three Rivers Stadium (11-8) | 15-17 | |
| » W: Paul Assenmacher (1-1) L: Hipolito Pena (0-1) | Fourth | 4 out |
| Saturday, May 16 |
| » Lost to Braves (19-17), 10-8 | Three Rivers Stadium (11-9) | 15-18 | Lost 2 |
| » W: Jeff Dedmon (2-0) L: John Smiley (2-1) S: Gene Garber (5) | Fourth | 5 out |
| Sunday, May 17 |
| » Defeated Braves (19-18), 6-5 | Three Rivers Stadium (12-9) | 16-18 | |
| » W: Don Robinson (4-1) L: Ed Olwine (0-1) | Fourth | 5 out |
| Monday, May 18 |
| » Lost to Astros (20-17), 4-1 | Three Rivers Stadium (12-10) | 16-19 | |
| » W: Mike Scott (5-2) L: Bob Kipper (2-4) | Fourth | 5½ out |
| Tuesday, May 19 |
| » Defeated Astros (20-18), 5-2 | Three Rivers Stadium (13-10) | 17-19 | |
| » W: John Smiley (3-1) L: Dave Meads (3-1) S: Don Robinson (7) | Fourth | 5½ out |
| Wednesday, May 20 |
| » Defeated Astros (20-19), 5-3 | Three Rivers Stadium (14-10) | 18-19 | Won 2 |
| » W: Dorn Taylor (1-0) L: Danny Darwin (2-4) S: Hipolito Pena (1) | Fourth | 4½ out |
| Friday, May 22 |
| » Defeated Reds (23-18), 4-1 | Riverfront Stadium (1-0) | 19-19 | Won 3 |
| » W: Rick Reuschel (3-2) L: Ron Robinson (1-1) S: John Smiley (2) | Third | 5 out |
| Saturday, May 23 |
| » Defeated Reds (23-19), 3-2 | Riverfront Stadium (2-0) | 20-19 | Won 4 |
| » W: Bob Kipper (3-4) L: Pat Pacillo (0-1) S: Don Robinson (8) | Third | 5 out |
| » Major-league debuts: Pat Pacillo (Reds) |
| Sunday, May 24 |
| » Defeated Reds (23-20), 7-2 | Riverfront Stadium (3-0) | 21-19 | Won 5 |
| » W: Brian Fisher (2-1) L: Tom Browning (4-6) | Third | 5 out |
| Monday, May 25 |
| » Lost to Astros (21-22), 7-2 | Astrodome (0-1) | 21-20 | |
| » W: Jim Deshaies (3-2) L: Dorn Taylor (1-1) | Fourth | 5 out |
| Tuesday, May 26 |
| » Lost to Astros (22-22), 10-3 | Astrodome (0-2) | 21-21 | Lost 2 |
| » W: Dave Meads (4-1) L: Hipolito Pena (0-2) | Fourth | 5 out |
| » Major-league debuts: Chuck Jackson (Astros) |
| Wednesday, May 27 |
| » Lost to Astros (23-22), 7-2 | Astrodome (0-3) | 21-22 | Lost 3 |
| » W: Aurelio Lopez (2-0) L: Don Robinson (4-2) S: Dave Smith (7) | Fifth | 5½ out |
| Friday, May 29 |
| » Lost to Reds (26-21), 13-6 | Three Rivers Stadium (14-11) | 21-23 | Lost 4 |
| » W: Guy Hoffman (2-1) L: Bob Kipper (3-5) | Fifth | 7 out |
| » Major-league debuts: Dave Johnson (Pirates) |
| Saturday, May 30 |
| » Lost to Reds (27-21), 6-2 | Three Rivers Stadium (14-12) | 21-24 | Lost 5 |
| » W: Bill Gullickson (7-2) L: Dorn Taylor (1-2) | Fifth | 8 out |
| Sunday, May 31 |
| » Lost to Reds (28-21), 5-2 | Three Rivers Stadium (14-13) | 21-25 | Lost 6 |
| » W: Ted Power (4-2) L: Doug Drabek (1-3) S: John Franco (9) | Sixth | 8 out |
| Tuesday, June 2 |
| » Defeated Braves (25-25), 4-1 | Atlanta-Fulton County Stadium (1-0) | 22-25 | |
| » W: Rick Reuschel (4-2) L: Rick Mahler (2-7) | Sixth | 7½ out |
| Wednesday, June 3 |
| » Defeated Braves (25-26), 4-1 | Atlanta-Fulton County Stadium (2-0) | 23-25 | Won 2 |
| » W: Bob Kipper (4-5) L: David Palmer (4-5) | Fifth | 6½ out |
| Thursday, June 4 |
| » Lost to Braves (26-26), 8-3 | Atlanta-Fulton County Stadium (2-1) | 23-26 | |
| » W: Zane Smith (6-3) L: Brian Fisher (2-2) S: Jeff Dedmon (3) | Fifth | 7½ out |
| Friday, June 5 |
| » Lost to Mets (26-25), 5-1 | Shea Stadium (0-3) | 23-27 | Lost 2 |
| » W: Dwight Gooden (1-0) L: Mike Dunne (0-1) S: Jesse Orosco (11) | Sixth | 8½ out |
| » Major-league debuts: Mike Dunne (Pirates) |
| Saturday, June 6 |
| » Lost to Mets (27-25), 4-2 | Shea Stadium (0-4) | 23-28 | Lost 3 |
| » W: Sid Fernandez (7-2) L: Doug Drabek (1-4) S: Roger McDowell (6) | Sixth | 8½ out |
| Sunday, June 7 |
| » Lost to Mets (28-25), 5-4 | Shea Stadium (0-5) | 23-29 | Lost 4 |
| » W: Roger McDowell (3-1) L: Don Robinson (4-3) | Fifth | 9 out |
| » Defeated Mets (28-26), 10-9 | Shea Stadium (1-5) | 24-29 | |
| » W: Dorn Taylor (2-2) L: Roger McDowell (3-2) S: Don Robinson (9) | Fifth | 9 out |
| Monday, June 8 |
| » Lost to Expos (29-26), 7-1 | Stade Olympique (0-1) | 24-30 | |
| » W: Neal Heaton (8-2) L: Brian Fisher (2-3) | Sixth | 10 out |
| Tuesday, June 9 |
| » Defeated Expos (29-27), 8-1 | Stade Olympique (1-1) | 25-30 | |
| » W: Mike Dunne (1-1) L: Lary Sorensen (3-2) | Sixth | 9 out |
| Wednesday, June 10 |
| » Lost to Expos (30-27), 4-3 | Stade Olympique (1-2) | 25-31 | |
| » W: Bob McClure (3-1) L: Don Robinson (4-4) | Sixth | 10 out |
| Friday, June 12 |
| » Lost to Mets (30-28), 10-2 | Three Rivers Stadium (14-14) | 25-32 | Lost 2 |
| » W: Sid Fernandez (8-2) L: Rick Reuschel (4-3) | Sixth | 11 out |
| Saturday, June 13 |
| » Defeated Mets (30-29), 4-3 | Three Rivers Stadium (15-14) | 26-32 | |
| » W: Don Robinson (5-4) L: Randy Myers (0-3) | Sixth | 11 out |
| Sunday, June 14 |
| » Lost to Mets (31-29), 7-3 | Three Rivers Stadium (15-15) | 26-33 | |
| » W: Doug Sisk (2-1) L: Brian Fisher (2-4) | Sixth | 12 out |
| Monday, June 15 |
| » Defeated Cardinals (38-22), 3-1 | Busch Stadium II (1-0) | 27-33 | |
| » W: Mike Dunne (2-1) L: Greg Mathews (4-5) | Sixth | 11 out |
| Tuesday, June 16 |
| » Lost to Cardinals (39-22), 11-1 | Busch Stadium II (1-1) | 27-34 | |
| » W: Bill Dawley (3-4) L: Doug Drabek (1-5) S: Ricky Horton (6) | Sixth | 12 out |
| Wednesday, June 17 |
| » Defeated Cardinals (39-23), 4-1 | Busch Stadium II (2-1) | 28-34 | |
| » W: Rick Reuschel (5-3) L: Bob Forsch (5-3) | Sixth | 11 out |
| Thursday, June 18 |
| » Lost to Cardinals (40-23), 8-6 | Busch Stadium II (2-2) | 28-35 | |
| » W: Bill Dawley (4-4) L: Don Robinson (5-5) | Sixth | 12 out |
| Friday, June 19 |
| » Defeated Cubs (36-30), 4-0 | Wrigley Field (3-0) | 29-35 | |
| » W: Brian Fisher (3-4) L: Dickie Noles (4-2) | Sixth | 11 out |
| Saturday, June 20 |
| » Defeated Cubs (36-31), 8-2 | Wrigley Field (4-0) | 30-35 | Won 2 |
| » W: Mike Dunne (3-1) L: Greg Maddux (4-6) | Fifth | 10 out |
| Sunday, June 21 |
| » Lost to Cubs (37-31), 6-3 | Wrigley Field (4-1) | 30-36 | |
| » W: Steve Trout (4-1) L: Doug Drabek (1-6) S: Lee Smith (19) | Fourth | 11 out |
| Monday, June 22 |
| » Lost to Cubs (38-31), 3-2 | Wrigley Field (4-2) | 30-37 | Lost 2 |
| » W: Jamie Moyer (8-4) L: Rick Reuschel (5-4) | Fourth | 11½ out |
| Tuesday, June 23 |
| » Lost to Expos (37-31), 8-2 | Three Rivers Stadium (15-16) | 30-38 | Lost 3 |
| » W: Neal Heaton (10-3) L: Bob Kipper (4-6) S: Jeff Parrett (1) | Sixth | 11½ out |
| Wednesday, June 24 |
| » Defeated Expos (37-32), 9-6 | Three Rivers Stadium (16-16) | 31-38 | |
| » W: Brian Fisher (4-4) L: Jeff Fischer (0-1) | Fourth | 11½ out |
| Thursday, June 25 |
| » Lost to Expos (38-32), 7-2 | Three Rivers Stadium (16-17) | 31-39 | |
| » W: Dennis Martinez (2-0) L: Mike Dunne (3-2) S: Andy McGaffigan (7) | Fourth | 12½ out |
| Friday, June 26 |
| » Defeated Cubs (39-34), 5-2 | Three Rivers Stadium (17-17) | 32-39 | |
| » W: Barry Jones (1-1) L: Greg Maddux (4-7) S: Don Robinson (10) | Fifth | 11½ out |
| Saturday, June 27 |
| » Defeated Cubs (39-35), 7-0 | Three Rivers Stadium (18-17) | 33-39 | Won 2 |
| » W: Rick Reuschel (6-4) L: Jamie Moyer (8-5) | Fourth | 11½ out |
| Sunday, June 28 |
| » Defeated Cubs (39-36), 6-2 | Three Rivers Stadium (19-17) | 34-39 | Won 3 |
| » W: Barry Jones (2-1) L: Rick Sutcliffe (10-4) | Fourth | 11½ out |
| Monday, June 29 |
| » Lost to Phillies (33-39), 6-5 | Veteran's Stadium (0-3) | 34-40 | |
| » W: Michael Jackson (2-6) L: Barry Jones (2-2) S: Steve Bedrosian (19) | Fifth | 13 out |
| » Lost to Phillies (34-39), 11-3 | Veteran's Stadium (0-4) | 34-41 | Lost 2 |
| » W: Doug Bair (2-0) L: Mike Dunne (3-3) S: Wally Ritchie (1) | Fifth | 13 out |
| Tuesday, June 30 |
| » Lost to Phillies (35-39), 6-4 | Veteran's Stadium (0-5) | 34-42 | Lost 3 |
| » W: Kevin Gross (6-7) L: Doug Drabek (1-7) S: Steve Bedrosian (20) | Fifth | 13 out |
| Wednesday, July 1 |
| » Lost to Phillies (36-39), 11-4 | Veteran's Stadium (0-6) | 34-43 | Lost 4 |
| » W: Shane Rawley (9-5) L: Dorn Taylor (2-3) | Sixth | 13 out |
| Friday, July 3 |
| » Defeated Dodgers (36-42), 6-0 | Three Rivers Stadium (20-17) | 35-43 | |
| » W: Rick Reuschel (7-4) L: Fernando Valenzuela (7-6) | Sixth | 13 out |
| Saturday, July 4 |
| » Defeated Dodgers (36-43), 4-2 | Three Rivers Stadium (21-17) | 36-43 | Won 2 |
| » W: Bob Kipper (5-6) L: Bob Welch (8-5) S: Don Robinson (11) | Sixth | 13 out |
| Sunday, July 5 |
| » Lost to Dodgers (37-43), 6-1 | Three Rivers Stadium (21-18) | 36-44 | |
| » W: Orel Hershiser (10-7) L: Brian Fisher (4-5) S: Matt Young (7) | Sixth | 14 out |
| Monday, July 6 |
| » Lost to Giants (41-40), 7-5 | Three Rivers Stadium (21-19) | 36-45 | Lost 2 |
| » W: Dave Dravecky (4-7) L: Mike Dunne (3-4) S: Scott Garrelts (11) | Fifth | 15 out |
| » Lost to Giants (42-40), 7-4 | Three Rivers Stadium (21-20) | 36-46 | Lost 3 |
| » W: Mike LaCoss (7-5) L: Doug Drabek (1-8) S: Craig Lefferts (3) | Fifth | 15 out |
| Tuesday, July 7 |
| » Defeated Giants (42-41), 6-4 | Three Rivers Stadium (22-20) | 37-46 | |
| » W: Brett Gideon (1-0) L: Joe Price (1-1) | Sixth | 15½ out |
| Wednesday, July 8 |
| » Lost to Giants (43-41), 8-4 | Three Rivers Stadium (22-21) | 37-47 | |
| » W: Jeff Robinson (6-6) L: Brett Gideon (1-1) | Sixth | 17 out |
| » Major-league debuts: Felix Fermin (Pirates) |
| Friday, July 10 |
| » Defeated Padres (29-57), 6-5 | Three Rivers Stadium (23-21) | 38-47 | |
| » W: Don Robinson (6-5) L: Rich Gossage (1-2) | Sixth | 17½ out |
| Saturday, July 11 |
| » Lost to Padres (30-57), 3-1 | Three Rivers Stadium (23-22) | 38-48 | |
| » W: Mark Grant (2-3) L: Brian Fisher (4-6) S: Mark Davis (1) | Sixth | 17½ out |
| Sunday, July 12 |
| » Defeated Padres (30-58), 4-2 | Three Rivers Stadium (24-22) | 39-48 | |
| » W: Mike Dunne (4-4) L: Eric Show (4-11) S: Brett Gideon (1) | Sixth | 17½ out |
| Thursday, July 16 |
| » Lost to Dodgers (40-49), 7-0 | Dodger Stadium (0-3) | 39-49 | |
| » W: Fernando Valenzuela (8-7) L: Bob Kipper (5-7) | Sixth | 17½ out |
| Friday, July 17 |
| » Lost to Dodgers (41-49), 3-2 | Dodger Stadium (0-4) | 39-50 | Lost 2 |
| » W: Matt Young (5-5) L: Don Robinson (6-6) | Sixth | 18½ out |
| Saturday, July 18 |
| » Defeated Dodgers (41-50), 4-2 | Dodger Stadium (1-4) | 40-50 | |
| » W: Doug Drabek (2-8) L: Orel Hershiser (10-9) S: Barry Jones (1) | Sixth | 17½ out |
| Sunday, July 19 |
| » Defeated Dodgers (41-51), 7-2 | Dodger Stadium (2-4) | 41-50 | Won 2 |
| » W: Mike Dunne (5-4) L: Rick Honeycutt (2-10) S: John Smiley (3) | Sixth | 17½ out |
| Monday, July 20 |
| » Defeated Giants (46-47), 7-6 | Candlestick Park (2-2) | 42-50 | Won 3 |
| » W: Brian Fisher (5-6) L: Mike LaCoss (7-6) S: Don Robinson (12) | Sixth | 17 out |
| Tuesday, July 21 |
| » Lost to Giants (47-47), 7-0 | Candlestick Park (2-3) | 42-51 | |
| » W: Dave Dravecky (5-8) L: Bob Kipper (5-8) | Sixth | 18 out |
| Wednesday, July 22 |
| » Defeated Giants (47-48), 4-0 | Candlestick Park (3-3) | 43-51 | |
| » W: Rick Reuschel (8-4) L: Kelly Downs (8-6) | Sixth | 18 out |
| Thursday, July 23 |
| » Lost to Padres (35-61), 2-1 | San Diego/Jack Murphy Stadium (1-2) | 43-52 | |
| » W: Eric Show (5-11) L: Doug Drabek (2-9) S: Rich Gossage (7) | Sixth | 19 out |
| Friday, July 24 |
| » Defeated Padres (35-62), 3-2 | San Diego/Jack Murphy Stadium (2-2) | 44-52 | |
| » W: Mike Dunne (6-4) L: Jimmy Jones (2-4) S: Brett Gideon (2) | Sixth | 18 out |
| Saturday, July 25 |
| » Defeated Padres (35-63), 9-3 | San Diego/Jack Murphy Stadium (3-2) | 45-52 | Won 2 |
| » W: Brian Fisher (6-6) L: Andy Hawkins (3-9) | Sixth | 17 out |
| Sunday, July 26 |
| » Lost to Padres (36-63), 7-4 | San Diego/Jack Murphy Stadium (3-3) | 45-53 | |
| » W: Ed Whitson (9-7) L: Bob Kipper (5-9) | Sixth | 16½ out |
| Tuesday, July 28 |
| » Lost to Phillies (50-48), 5-2 | Three Rivers Stadium (24-23) | 45-54 | Lost 2 |
| » W: Shane Rawley (13-5) L: Rick Reuschel (8-5) | Sixth | 16½ out |
| Wednesday, July 29 |
| » Lost to Phillies (51-48), 4-3 | Three Rivers Stadium (24-24) | 45-55 | Lost 3 |
| » W: Don Carman (7-7) L: Doug Drabek (2-10) S: Steve Bedrosian (28) | Sixth | 16½ out |
| Thursday, July 30 |
| » Lost to Phillies (52-48), 1-0 | Three Rivers Stadium (24-25) | 45-56 | Lost 4 |
| » W: Bruce Ruffin (9-7) L: John Smiley (3-2) S: Steve Bedrosian (29) | Sixth | 16½ out |
| Friday, July 31 |
| » Lost to Cardinals (62-39), 4-3 | Busch Stadium II (2-3) | 45-57 | Lost 5 |
| » W: Ken Dayley (6-1) L: Barry Jones (2-3) | Sixth | 17½ out |
| Saturday, August 1 |
| » Lost to Cardinals (63-39), 7-6 | Busch Stadium II (2-4) | 45-58 | Lost 6 |
| » W: Todd Worrell (5-6) L: Barry Jones (2-4) | Sixth | 18½ out |
| Sunday, August 2 |
| » Lost to Cardinals (64-39), 9-1 | Busch Stadium II (2-5) | 45-59 | Lost 7 |
| » W: Joe Magrane (6-2) L: Hipolito Pena (0-3) | Sixth | 19½ out |
| Monday, August 3 |
| » Defeated Cubs (54-51), 6-4 | Three Rivers Stadium (25-25) | 46-59 | |
| » W: Doug Drabek (3-10) L: Greg Maddux (6-10) S: Jim Gott (1) | Sixth | 19½ out |
| Tuesday, August 4 |
| » Lost to Cubs (55-51), 3-2 | Three Rivers Stadium (25-26) | 46-60 | |
| » W: Mike Mason (3-3) L: Brett Gideon (1-2) | Sixth | 19½ out |
| Wednesday, August 5 |
| » Defeated Cubs (55-52), 10-0 | Three Rivers Stadium (26-26) | 47-60 | |
| » W: Brian Fisher (7-6) L: Jamie Moyer (9-8) | Sixth | 18½ out |
| Thursday, August 6 |
| » Lost to Expos (61-46), 6-3 | Three Rivers Stadium (26-27) | 47-61 | |
| » W: Jeff Parrett (3-3) L: Jim Gott (1-1) S: Tim Burke (10) | Sixth | 19½ out |
| Friday, August 7 |
| » Defeated Expos (61-47), 9-3 | Three Rivers Stadium (27-27) | 48-61 | |
| » W: Bob Walk (3-1) L: Bob Sebra (6-12) S: Brett Gideon (3) | Sixth | 18½ out |
| Saturday, August 8 |
| » Defeated Expos (61-48), 5-2 | Three Rivers Stadium (28-27) | 49-61 | Won 2 |
| » W: Doug Drabek (4-10) L: Bryn Smith (7-6) S: John Smiley (4) | Sixth | 18½ out |
| Sunday, August 9 |
| » Defeated Expos (61-49), 4-3 | Three Rivers Stadium (29-27) | 50-61 | Won 3 |
| » W: Mike Dunne (7-4) L: Jeff Parrett (3-4) S: Jim Gott (2) | Sixth | 17½ out |
| Monday, August 10 |
| » Lost to Cardinals (68-43), 6-0 | Three Rivers Stadium (29-28) | 50-62 | |
| » W: Bob Forsch (10-3) L: Brian Fisher (7-7) | Sixth | 18½ out |
| Tuesday, August 11 |
| » Lost to Cardinals (69-43), 6-5 | Three Rivers Stadium (29-29) | 50-63 | Lost 2 |
| » W: Ken Dayley (7-2) L: Rick Reuschel (8-6) S: Todd Worrell (24) | Sixth | 19½ out |
| » Major-league debuts: Steve Peters (Cardinals) |
| Wednesday, August 12 |
| » Defeated Cardinals (69-44), 11-0 | Three Rivers Stadium (30-29) | 51-63 | |
| » W: Bob Walk (4-1) L: Joe Magrane (6-4) | Sixth | 18½ out |
| Thursday, August 13 |
| » Lost to Expos (63-51), 9-7 | Stade Olympique (1-3) | 51-64 | |
| » W: Andy McGaffigan (3-2) L: Brett Gideon (1-3) S: Bob McClure (2) | Sixth | 18½ out |
| Friday, August 14 |
| » Lost to Expos (64-51), 4-3 | Stade Olympique (1-4) | 51-65 | Lost 2 |
| » W: Bob McClure (6-1) L: John Smiley (3-3) | Sixth | 19½ out |
| Saturday, August 15 |
| » Lost to Expos (65-51), 6-3 | Stade Olympique (1-5) | 51-66 | Lost 3 |
| » W: Tim Burke (3-0) L: Brian Fisher (7-8) | Sixth | 19½ out |
| Sunday, August 16 |
| » Lost to Expos (66-51), 10-7 | Stade Olympique (1-6) | 51-67 | Lost 4 |
| » W: Jeff Parrett (4-4) L: Brett Gideon (1-4) | Sixth | 19½ out |
| Monday, August 17 |
| » Major-league debuts: Tom Glavine (Braves) |
| Tuesday, August 18 |
| » Defeated Reds (62-58), 7-4 | Riverfront Stadium (4-0) | 52-67 | |
| » W: Bob Walk (5-1) L: Rob Murphy (6-4) S: Jim Gott (3) | Sixth | 18½ out |
| Wednesday, August 19 |
| » Defeated Reds (62-59), 10-9 | Riverfront Stadium (5-0) | 53-67 | Won 2 |
| » W: Doug Drabek (5-10) L: Tom Browning (5-10) | Sixth | 17½ out |
| Thursday, August 20 |
| » Lost to Reds (63-59), 5-3 | Riverfront Stadium (5-1) | 53-68 | |
| » W: Ted Power (10-7) L: Mike Dunne (7-5) S: John Franco (24) | Sixth | 17½ out |
| Friday, August 21 |
| » Lost to Braves (53-69), 5-4 | Atlanta-Fulton County Stadium (2-2) | 53-69 | Lost 2 |
| » W: Zane Smith (13-7) L: John Smiley (3-4) S: Ed Olwine (1) | Sixth | 18½ out |
| Saturday, August 22 |
| » Lost to Braves (54-69), 10-3 | Atlanta-Fulton County Stadium (2-3) | 53-70 | Lost 3 |
| » W: Tom Glavine (1-1) L: Bob Walk (5-2) | Sixth | 19½ out |
| Sunday, August 23 |
| » Lost to Braves (55-69), 6-2 | Atlanta-Fulton County Stadium (2-4) | 53-71 | Lost 4 |
| » W: David Palmer (7-10) L: Mike Bielecki (0-1) | Sixth | 20½ out |
| Monday, August 24 |
| » Defeated Reds (63-63), 5-4 | Three Rivers Stadium (31-29) | 54-71 | |
| » W: Doug Drabek (6-10) L: Tom Browning (5-11) S: Jim Gott (4) | Sixth | 19½ out |
| Tuesday, August 25 |
| » Defeated Reds (63-64), 1-0 | Three Rivers Stadium (32-29) | 55-71 | Won 2 |
| » W: Mike Dunne (8-5) L: Ted Power (10-8) | Sixth | 19½ out |
| Wednesday, August 26 |
| » Defeated Reds (63-65), 6-5 | Three Rivers Stadium (33-29) | 56-71 | Won 3 |
| » W: Jeff Robinson (7-8) L: John Franco (7-4) | Sixth | 19½ out |
| Friday, August 28 |
| » Defeated Astros (65-63), 4-2 | Three Rivers Stadium (34-29) | 57-71 | Won 4 |
| » W: Bob Walk (6-2) L: Mike Scott (13-10) S: Jim Gott (5) | Sixth | 19½ out |
| » Major-league debuts: Jose Lind (Pirates) |
| Saturday, August 29 |
| » Defeated Astros (65-64), 8-2 | Three Rivers Stadium (35-29) | 58-71 | Won 5 |
| » W: Mike Bielecki (1-1) L: Nolan Ryan (5-14) | Sixth | 19½ out |
| Sunday, August 30 |
| » Defeated Astros (65-65), 7-0 | Three Rivers Stadium (36-29) | 59-71 | Won 6 |
| » W: Doug Drabek (7-10) L: Bob Knepper (7-14) | Sixth | 19½ out |
| Monday, August 31 |
| » Defeated Braves (56-74), 7-3 | Three Rivers Stadium (37-29) | 60-71 | Won 7 |
| » W: Mike Dunne (9-5) L: Jeff Dedmon (3-4) | Sixth | 19½ out |
| Tuesday, September 1 |
| » Lost to Braves (57-74), 4-0 | Three Rivers Stadium (37-30) | 60-72 | |
| » W: Zane Smith (15-7) L: Brian Fisher (7-9) | Sixth | 19½ out |
| Wednesday, September 2 |
| » Defeated Braves (57-75), 2-0 | Three Rivers Stadium (38-30) | 61-72 | |
| » W: Bob Walk (7-2) L: Tom Glavine (1-2) S: Jim Gott (6) | Sixth | 18½ out |
| Friday, September 4 |
| » Lost to Astros (67-67), 2-0 | Astrodome (0-4) | 61-73 | |
| » W: Nolan Ryan (6-14) L: Mike Bielecki (1-2) S: Juan Agosto (2) | Sixth | 19½ out |
| » Major-league debuts: Vicente Palacios (Pirates) |
| Saturday, September 5 |
| » Lost to Astros (68-67), 5-1 | Astrodome (0-5) | 61-74 | Lost 2 |
| » W: Bob Knepper (8-14) L: Doug Drabek (7-11) | Sixth | 19½ out |
| Sunday, September 6 |
| » Defeated Astros (68-68), 4-3 | Astrodome (1-5) | 62-74 | |
| » W: Mike Dunne (10-5) L: Manny Hernandez (0-2) S: Jim Gott (7) | Sixth | 19½ out |
| Monday, September 7 |
| » Defeated Cubs (68-68), 3-2 | Wrigley Field (5-2) | 63-74 | Won 2 |
| » W: Brian Fisher (8-9) L: Jamie Moyer (11-12) S: Jeff Robinson (11) | Sixth | 18½ out |
| Tuesday, September 8 |
| » Defeated Cubs (68-69), 4-1 | Wrigley Field (6-2) | 64-74 | Won 3 |
| » W: Vicente Palacios (1-0) L: Rick Sutcliffe (15-8) S: Jim Gott (8) | Sixth | 17½ out |
| Wednesday, September 9 |
| » Defeated Cubs (68-70), 4-3 | Wrigley Field (7-2) | 65-74 | Won 4 |
| » W: Jeff Robinson (8-8) L: Lee Smith (4-9) S: Jim Gott (9) | Sixth | 16½ out |
| Thursday, September 10 |
| » Major-league debuts: Jose Mesa (Orioles) |
| Friday, September 11 |
| » Defeated Phillies (71-69), 4-2 | Veteran's Stadium (1-6) | 66-74 | Won 5 |
| » W: Doug Drabek (8-11) L: Kevin Gross (8-13) S: Jim Gott (10) | Sixth | 16½ out |
| Saturday, September 12 |
| » Defeated Phillies (71-70), 12-4 | Veteran's Stadium (2-6) | 67-74 | Won 6 |
| » W: Mike Dunne (11-5) L: Don Carman (10-10) | Sixth | 16½ out |
| » Major-league debuts: Tim Drummond (Pirates) |
| Sunday, September 13 |
| » Defeated Phillies (71-71), 6-1 | Veteran's Stadium (3-6) | 68-74 | Won 7 |
| » W: Brian Fisher (9-9) L: Bruce Ruffin (10-13) | Sixth | 15½ out |
| Monday, September 14 |
| » Lost to Expos (81-61), 6-4 | Three Rivers Stadium (38-31) | 68-75 | |
| » W: Andy McGaffigan (5-2) L: Brett Gideon (1-5) S: Jeff Parrett (5) | Sixth | 15½ out |
| » Major-league debuts: Tommy Gregg (Pirates) |
| Tuesday, September 15 |
| » Defeated Expos (81-62), 5-1 | Three Rivers Stadium ( |