| Monday, April 6 |
| » Major-league debuts: Mike Sharperson (Blue Jays) |
| Tuesday, April 7 |
| » Defeated Pirates (0-1), 3-2 | Shea Stadium (1-0) | 1-0 | |
| » W: Bob Ojeda (1-0) L: Bob Patterson (0-1) S: Jesse Orosco (1) | First | -- |
| Thursday, April 9 |
| » Defeated Pirates (0-2), 4-2 | Shea Stadium (2-0) | 2-0 | Won 2 |
| » W: Gene Walter (1-0) L: Logan Easley (0-1) S: Jesse Orosco (2) | First | -- |
| » Major-league debuts: Logan Easley (Pirates) |
| Friday, April 10 |
| » Defeated Braves (2-1), 6-3 | Shea Stadium (3-0) | 3-0 | Won 3 |
| » W: Sid Fernandez (1-0) L: David Palmer (0-1) S: Doug Sisk (1) | First | -- |
| Saturday, April 11 |
| » Lost to Braves (3-1), 4-3 | Shea Stadium (3-1) | 3-1 | |
| » W: Gene Garber (2-0) L: David Cone (0-1) | First | -- |
| Sunday, April 12 |
| » Lost to Braves (4-1), 12-4 | Shea Stadium (3-2) | 3-2 | Lost 2 |
| » W: Randy O'Neal (1-0) L: Bob Ojeda (1-1) | First | -- |
| Tuesday, April 14 |
| » Defeated Phillies (1-6), 7-5 | Veteran's Stadium (1-0) | 4-2 | |
| » W: Ron Darling (1-0) L: Steve Bedrosian (1-1) S: Jesse Orosco (3) | First | -- |
| » Major-league debuts: Al Pedrique (Mets) |
| Wednesday, April 15 |
| » Defeated Phillies (1-7), 4-1 | Veteran's Stadium (2-0) | 5-2 | Won 2 |
| » W: Sid Fernandez (2-0) L: Kevin Gross (0-2) S: Doug Sisk (2) | First | -- |
| Thursday, April 16 |
| » Defeated Phillies (1-8), 9-3 | Veteran's Stadium (3-0) | 6-2 | Won 3 |
| » W: Rick Aguilera (1-0) L: Joe Cowley (0-2) | First | -- |
| Friday, April 17 |
| » Lost to Cardinals (5-4), 4-3 | Busch Stadium II (0-1) | 6-3 | |
| » W: John Tudor (2-1) L: Bob Ojeda (1-2) S: Ricky Horton (2) | First | -- |
| Saturday, April 18 |
| » Lost to Cardinals (6-4), 12-8 | Busch Stadium II (0-2) | 6-4 | Lost 2 |
| » W: Dave LaPoint (1-1) L: Jesse Orosco (0-1) | First | -- |
| Sunday, April 19 |
| » Lost to Cardinals (7-4), 4-2 | Busch Stadium II (0-3) | 6-5 | Lost 3 |
| » W: Greg Mathews (1-1) L: Sid Fernandez (2-1) S: Ricky Horton (3) | Second | 1 out |
| Monday, April 20 |
| » Lost to Pirates (6-6), 9-6 | Three Rivers Stadium (0-1) | 6-6 | Lost 4 |
| » W: Logan Easley (1-1) L: Randy Myers (0-1) | Second | 1½ out |
| Tuesday, April 21 |
| » Defeated Pirates (6-7), 9-6 | Three Rivers Stadium (1-1) | 7-6 | |
| » W: Bob Ojeda (2-2) L: Bob Kipper (1-2) S: Jesse Orosco (4) | Second | ½ out |
| Wednesday, April 22 |
| » Defeated Pirates (6-8), 8-7 | Three Rivers Stadium (2-1) | 8-6 | Won 2 |
| » W: Ron Darling (2-0) L: Bob Patterson (1-2) S: Jesse Orosco (5) | First | -- |
| Friday, April 24 |
| » Defeated Cardinals (8-7), 2-1 | Shea Stadium (4-2) | 9-6 | Won 3 |
| » W: Sid Fernandez (3-1) L: Greg Mathews (1-2) | First | -- |
| Saturday, April 25 |
| » Lost to Cardinals (9-7), 3-2 | Shea Stadium (4-3) | 9-7 | |
| » W: Joe Magrane (1-0) L: Rick Aguilera (1-1) S: Ricky Horton (4) | First | -- |
| » Major-league debuts: Joe Magrane (Cardinals) |
| Sunday, April 26 |
| » Lost to Cardinals (10-7), 7-4 | Shea Stadium (4-4) | 9-8 | Lost 2 |
| » W: Bob Forsch (2-1) L: Ron Darling (2-1) S: Todd Worrell (3) | Second | 1 out |
| Monday, April 27 |
| » Lost to Astros (12-8), 11-1 | Shea Stadium (4-5) | 9-9 | Lost 3 |
| » W: Jim Deshaies (2-0) L: David Cone (0-2) | Third | 1½ out |
| Wednesday, April 29 |
| » Defeated Astros (12-9), 2-1 | Shea Stadium (5-5) | 10-9 | |
| » W: Sid Fernandez (4-1) L: Mike Scott (3-1) S: Jesse Orosco (6) | Second | 1 out |
| Thursday, April 30 |
| » Defeated Expos (8-12), 11-3 | Shea Stadium (6-5) | 11-9 | Won 2 |
| » W: Rick Aguilera (2-1) L: Jay Tibbs (1-4) | Second | 1 out |
| Friday, May 1 |
| » Defeated Expos (8-13), 7-6 | Shea Stadium (7-5) | 12-9 | Won 3 |
| » W: Jesse Orosco (1-1) L: Bob McClure (0-1) | Second | 1 out |
| Saturday, May 2 |
| » Lost to Expos (9-13), 11-7 | Shea Stadium (7-6) | 12-10 | |
| » W: Randy St. Claire (2-0) L: Jesse Orosco (1-2) S: Andy McGaffigan (4) | Second | 1 out |
| Sunday, May 3 |
| » Lost to Expos (10-13), 2-0 | Shea Stadium (7-7) | 12-11 | Lost 2 |
| » W: Bob McClure (1-1) L: Bob Ojeda (2-3) S: Tim Burke (1) | Third | 1½ out |
| Tuesday, May 5 |
| » Lost to Reds (18-8), 2-0 | Shea Stadium (7-8) | 12-12 | Lost 3 |
| » W: Ted Power (3-0) L: Sid Fernandez (4-2) S: John Franco (5) | Third | 1½ out |
| Wednesday, May 6 |
| » Defeated Reds (18-9), 3-2 | Shea Stadium (8-8) | 13-12 | |
| » W: Rick Aguilera (3-1) L: Mario Soto (2-1) S: Jesse Orosco (7) | Third | 1½ out |
| Friday, May 8 |
| » Lost to Braves (13-15), 4-3 | Atlanta-Fulton County Stadium (0-1) | 13-13 | |
| » W: Gene Garber (4-2) L: Jesse Orosco (1-3) | Third | 2½ out |
| Saturday, May 9 |
| » Lost to Braves (14-15), 5-4 | Atlanta-Fulton County Stadium (0-2) | 13-14 | Lost 2 |
| » W: David Palmer (2-4) L: Bob Ojeda (2-4) S: Gene Garber (3) | Third | 3 out |
| Sunday, May 10 |
| » Lost to Braves (15-15), 8-7 | Atlanta-Fulton County Stadium (0-3) | 13-15 | Lost 3 |
| » W: Jeff Dedmon (1-0) L: Jesse Orosco (1-4) S: Gene Garber (4) | Fourth | 3 out |
| Monday, May 11 |
| » Lost to Reds (20-11), 12-2 | Riverfront Stadium (0-1) | 13-16 | Lost 4 |
| » W: Mario Soto (3-1) L: Rick Aguilera (3-2) | Fourth | 4 out |
| Tuesday, May 12 |
| » Defeated Reds (20-12), 6-2 | Riverfront Stadium (1-1) | 14-16 | |
| » W: David Cone (1-2) L: Jerry Reuss (0-1) | Fourth | 3 out |
| Wednesday, May 13 |
| » Lost to Astros (18-14), 2-1 | Astrodome (0-1) | 14-17 | |
| » W: Dave Meads (2-0) L: Gene Walter (1-1) | Fifth | 4 out |
| Thursday, May 14 |
| » Lost to Astros (19-14), 5-4 | Astrodome (0-2) | 14-18 | Lost 2 |
| » W: Dave Meads (3-0) L: Gene Walter (1-2) | Fifth | 4½ out |
| Friday, May 15 |
| » Defeated Giants (21-14), 8-3 | Shea Stadium (9-8) | 15-18 | |
| » W: Sid Fernandez (5-2) L: Mike Krukow (1-4) S: Roger McDowell (1) | Fifth | 4½ out |
| Saturday, May 16 |
| » Lost to Giants (22-14), 5-4 | Shea Stadium (9-9) | 15-19 | |
| » W: Scott Garrelts (5-3) L: Jeff Innis (0-1) | Fifth | 5½ out |
| » Major-league debuts: Jeff Innis (Mets) |
| Sunday, May 17 |
| » Defeated Giants (22-15), 6-4 | Shea Stadium (10-9) | 16-19 | |
| » W: David Cone (2-2) L: Atlee Hammaker (1-1) S: Roger McDowell (2) | Fifth | 5½ out |
| Monday, May 18 |
| » Lost to Padres (10-30), 7-5 | Shea Stadium (10-10) | 16-20 | |
| » W: Dave Dravecky (1-3) L: Ron Darling (2-2) S: Lance McCullers (5) | Fifth | 6 out |
| Tuesday, May 19 |
| » Defeated Padres (10-31), 5-4 | Shea Stadium (11-10) | 17-20 | |
| » W: Roger McDowell (1-0) L: Eric Show (1-5) | Fifth | 6 out |
| Wednesday, May 20 |
| » Defeated Padres (10-32), 10-3 | Shea Stadium (12-10) | 18-20 | Won 2 |
| » W: Rick Aguilera (4-2) L: Ed Whitson (4-6) | Fifth | 5 out |
| Friday, May 22 |
| » Defeated Dodgers (19-22), 6-4 | Shea Stadium (13-10) | 19-20 | Won 3 |
| » W: Terry Leach (1-0) L: Matt Young (1-5) S: Roger McDowell (3) | Fourth | 5½ out |
| Saturday, May 23 |
| » Lost to Dodgers (20-22), 4-2 | Shea Stadium (13-11) | 19-21 | |
| » W: Bob Welch (5-2) L: Ron Darling (2-3) S: Matt Young (3) | Fifth | 6½ out |
| Sunday, May 24 |
| » Lost to Dodgers (21-22), 8-6 | Shea Stadium (13-12) | 19-22 | Lost 2 |
| » W: Orel Hershiser (4-5) L: Roger McDowell (1-1) S: Matt Young (4) | Fifth | 7½ out |
| Monday, May 25 |
| » Defeated Giants (26-18), 8-7 | Candlestick Park (1-0) | 20-22 | |
| » W: Terry Leach (2-0) L: Mark Grant (1-1) S: Jesse Orosco (8) | Fifth | 6½ out |
| Tuesday, May 26 |
| » Defeated Giants (26-19), 3-2 | Candlestick Park (2-0) | 21-22 | Won 2 |
| » W: Doug Sisk (1-0) L: Jeff Robinson (3-3) S: Jesse Orosco (9) | Fifth | 5½ out |
| Wednesday, May 27 |
| » Defeated Giants (26-20), 4-3 | Candlestick Park (3-0) | 22-22 | Won 3 |
| » W: Roger McDowell (2-1) L: Jeff Robinson (3-4) S: Jesse Orosco (10) | Fourth | 5 out |
| Friday, May 29 |
| » Defeated Padres (11-38), 5-4 | San Diego/Jack Murphy Stadium (1-0) | 23-22 | Won 4 |
| » W: Terry Leach (3-0) L: Craig Lefferts (0-2) S: Roger McDowell (4) | Fourth | 5½ out |
| Saturday, May 30 |
| » Defeated Padres (11-39), 3-0 | San Diego/Jack Murphy Stadium (2-0) | 24-22 | Won 5 |
| » W: Sid Fernandez (6-2) L: Eric Show (1-7) | Fourth | 5½ out |
| Sunday, May 31 |
| » Lost to Padres (12-39), 1-0 | San Diego/Jack Murphy Stadium (2-1) | 24-23 | |
| » W: Ed Whitson (5-6) L: John Mitchell (0-1) S: Rich Gossage (2) | Fourth | 5½ out |
| Monday, June 1 |
| » Defeated Dodgers (23-27), 5-2 | Dodger Stadium (1-0) | 25-23 | |
| » W: Terry Leach (4-0) L: Fernando Valenzuela (5-3) S: Roger McDowell (5) | Third | 5½ out |
| Tuesday, June 2 |
| » Lost to Dodgers (24-27), 6-3 | Dodger Stadium (1-1) | 25-24 | |
| » W: Bob Welch (7-2) L: Jesse Orosco (1-5) S: Matt Young (5) | Fourth | 5½ out |
| » Major-league debuts: Tom Edens (Mets) |
| Wednesday, June 3 |
| » Lost to Dodgers (25-27), 5-2 | Dodger Stadium (1-2) | 25-25 | Lost 2 |
| » W: Orel Hershiser (5-6) L: Ron Darling (2-4) S: Matt Young (6) | Fourth | 5½ out |
| Friday, June 5 |
| » Defeated Pirates (23-27), 5-1 | Shea Stadium (14-12) | 26-25 | |
| » W: Dwight Gooden (1-0) L: Mike Dunne (0-1) S: Jesse Orosco (11) | Fourth | 6 out |
| » Major-league debuts: Mike Dunne (Pirates) |
| Saturday, June 6 |
| » Defeated Pirates (23-28), 4-2 | Shea Stadium (15-12) | 27-25 | Won 2 |
| » W: Sid Fernandez (7-2) L: Doug Drabek (1-4) S: Roger McDowell (6) | Fourth | 5 out |
| Sunday, June 7 |
| » Defeated Pirates (23-29), 5-4 | Shea Stadium (16-12) | 28-25 | Won 3 |
| » W: Roger McDowell (3-1) L: Don Robinson (4-3) | Third | 5½ out |
| » Lost to Pirates (24-29), 10-9 | Shea Stadium (16-13) | 28-26 | |
| » W: Dorn Taylor (2-2) L: Roger McDowell (3-2) S: Don Robinson (9) | Third | 5½ out |
| Monday, June 8 |
| » Lost to Cubs (32-24), 4-2 | Wrigley Field (0-1) | 28-27 | Lost 2 |
| » W: Lee Smith (2-3) L: Doug Sisk (1-1) | Fourth | 6½ out |
| Tuesday, June 9 |
| » Lost to Cubs (33-24), 6-5 | Wrigley Field (0-2) | 28-28 | Lost 3 |
| » W: Dickie Noles (4-1) L: Randy Myers (0-2) S: Lee Smith (15) | Fifth | 6½ out |
| Wednesday, June 10 |
| » Defeated Cubs (33-25), 13-2 | Wrigley Field (1-2) | 29-28 | |
| » W: Dwight Gooden (2-0) L: Scott Sanderson (3-3) | Fourth | 6½ out |
| Friday, June 12 |
| » Defeated Pirates (25-32), 10-2 | Three Rivers Stadium (3-1) | 30-28 | Won 2 |
| » W: Sid Fernandez (8-2) L: Rick Reuschel (4-3) | Fourth | 6½ out |
| Saturday, June 13 |
| » Lost to Pirates (26-32), 4-3 | Three Rivers Stadium (3-2) | 30-29 | |
| » W: Don Robinson (5-4) L: Randy Myers (0-3) | Fourth | 7½ out |
| Sunday, June 14 |
| » Defeated Pirates (26-33), 7-3 | Three Rivers Stadium (4-2) | 31-29 | |
| » W: Doug Sisk (2-1) L: Brian Fisher (2-4) | Fourth | 7½ out |
| Monday, June 15 |
| » Lost to Expos (33-28), 4-0 | Stade Olympique (0-1) | 31-30 | |
| » W: Dennis Martinez (1-0) L: Dwight Gooden (2-1) | Fourth | 7½ out |
| Tuesday, June 16 |
| » Defeated Expos (33-29), 7-3 | Stade Olympique (1-1) | 32-30 | |
| » W: Terry Leach (5-0) L: Bob Sebra (3-7) | Fourth | 7½ out |
| » Major-league debuts: Keith Miller (Mets) |
| Wednesday, June 17 |
| » Lost to Expos (34-29), 9-1 | Stade Olympique (1-2) | 32-31 | |
| » W: Bryn Smith (5-2) L: Sid Fernandez (8-3) | Fourth | 7½ out |
| Thursday, June 18 |
| » Defeated Expos (34-30), 10-7 | Stade Olympique (2-2) | 33-31 | |
| » W: Doug Sisk (3-1) L: Neal Heaton (9-3) S: Roger McDowell (7) | Fourth | 7½ out |
| Friday, June 19 |
| » Defeated Phillies (29-34), 8-1 | Shea Stadium (17-13) | 34-31 | Won 2 |
| » W: John Mitchell (1-1) L: Don Carman (4-6) | Fourth | 6½ out |
| Saturday, June 20 |
| » Defeated Phillies (29-35), 3-2 | Shea Stadium (18-13) | 35-31 | Won 3 |
| » W: Dwight Gooden (3-1) L: Kent Tekulve (2-3) | Fourth | 5½ out |
| Sunday, June 21 |
| » Defeated Phillies (29-36), 8-3 | Shea Stadium (19-13) | 36-31 | Won 4 |
| » W: Sid Fernandez (9-3) L: Kevin Gross (4-7) S: Roger McDowell (8) | Third | 5½ out |
| Tuesday, June 23 |
| » Lost to Cubs (39-31), 4-1 | Shea Stadium (19-14) | 36-32 | |
| » W: Rick Sutcliffe (10-3) L: Ron Darling (2-5) S: Lee Smith (20) | Fourth | 5½ out |
| Wednesday, June 24 |
| » Defeated Cubs (39-32), 2-1 | Shea Stadium (20-14) | 37-32 | |
| » W: Roger McDowell (4-2) L: Lee Smith (2-5) | Third | 5½ out |
| Thursday, June 25 |
| » Defeated Cubs (39-33), 8-2 | Shea Stadium (21-14) | 38-32 | Won 2 |
| » W: Dwight Gooden (4-1) L: Steve Trout (4-2) | Second | 5½ out |
| Friday, June 26 |
| » Lost to Phillies (31-38), 5-2 | Veteran's Stadium (3-1) | 38-33 | |
| » W: Kevin Gross (5-7) L: Sid Fernandez (9-4) S: Steve Bedrosian (18) | Third | 5½ out |
| Saturday, June 27 |
| » Defeated Phillies (31-39), 5-4 | Veteran's Stadium (4-1) | 39-33 | |
| » W: Terry Leach (6-0) L: Shane Rawley (8-5) S: Roger McDowell (9) | Second | 5½ out |
| Sunday, June 28 |
| » Lost to Phillies (32-39), 5-4 | Veteran's Stadium (4-2) | 39-34 | |
| » W: Doug Bair (1-0) L: Roger McDowell (4-3) | Second | 6½ out |
| Monday, June 29 |
| » Lost to Cardinals (46-27), 8-7 | Shea Stadium (21-15) | 39-35 | Lost 2 |
| » W: Todd Worrell (3-3) L: Jesse Orosco (1-6) S: Ken Dayley (1) | Second | 7½ out |
| Tuesday, June 30 |
| » Defeated Cardinals (46-28), 3-2 | Shea Stadium (22-15) | 40-35 | |
| » W: Dwight Gooden (5-1) L: Greg Mathews (5-6) | Second | 6½ out |
| Wednesday, July 1 |
| » Defeated Cardinals (46-29), 9-6 | Shea Stadium (23-15) | 41-35 | Won 2 |
| » W: Randy Myers (1-3) L: Bill Dawley (4-6) S: Roger McDowell (10) | Second | 5½ out |
| Thursday, July 2 |
| » Defeated Reds (43-35), 5-0 | Riverfront Stadium (2-1) | 42-35 | Won 3 |
| » W: Terry Leach (7-0) L: Ron Robinson (3-3) | Second | 5 out |
| Friday, July 3 |
| » Lost to Reds (44-35), 8-3 | Riverfront Stadium (2-2) | 42-36 | |
| » W: Guy Hoffman (7-2) L: Ron Darling (2-6) S: Bill Landrum (2) | Second | 6 out |
| Saturday, July 4 |
| » Lost to Reds (45-35), 7-3 | Riverfront Stadium (2-3) | 42-37 | Lost 2 |
| » W: Bill Gullickson (8-5) L: John Mitchell (1-2) | Third | 7 out |
| Sunday, July 5 |
| » Lost to Reds (46-35), 7-5 | Riverfront Stadium (2-4) | 42-38 | Lost 3 |
| » W: Tom Browning (5-6) L: Dwight Gooden (5-2) S: John Franco (17) | Third | 8 out |
| Tuesday, July 7 |
| » Defeated Braves (37-44), 6-2 | Atlanta-Fulton County Stadium (1-3) | 43-38 | |
| » W: Terry Leach (8-0) L: Rick Mahler (5-9) | Second | 8 out |
| » Defeated Braves (37-45), 5-1 | Atlanta-Fulton County Stadium (2-3) | 44-38 | Won 2 |
| » W: Ron Darling (3-6) L: Jeff Dedmon (2-3) S: Randy Myers (1) | Second | 8 out |
| Wednesday, July 8 |
| » Lost to Braves (38-45), 5-3 | Atlanta-Fulton County Stadium (2-4) | 44-39 | |
| » W: Charlie Puleo (3-2) L: Sid Fernandez (9-5) | Fourth | 9½ out |
| Thursday, July 9 |
| » Lost to Astros (44-40), 4-3 | Astrodome (0-3) | 44-40 | Lost 2 |
| » W: Dave Smith (1-0) L: Randy Myers (1-4) | Fourth | 10½ out |
| Friday, July 10 |
| » Defeated Astros (44-41), 7-3 | Astrodome (1-3) | 45-40 | |
| » W: Dwight Gooden (6-2) L: Mike Scott (10-5) S: Jesse Orosco (12) | Fourth | 10½ out |
| Saturday, July 11 |
| » Defeated Astros (44-42), 9-6 | Astrodome (2-3) | 46-40 | Won 2 |
| » W: Randy Myers (2-4) L: Danny Darwin (5-6) S: Roger McDowell (11) | Fourth | 9½ out |
| Sunday, July 12 |
| » Defeated Astros (44-43), 5-2 | Astrodome (3-3) | 47-40 | Won 3 |
| » W: Ron Darling (4-6) L: Bob Knepper (3-10) S: Jesse Orosco (13) | Third | 9½ out |
| Thursday, July 16 |
| » Defeated Reds (47-42), 9-0 | Shea Stadium (24-15) | 48-40 | Won 4 |
| » W: Dwight Gooden (7-2) L: Bill Gullickson (9-6) | Third | 8½ out |
| Friday, July 17 |
| » Lost to Reds (48-42), 5-2 | Shea Stadium (24-16) | 48-41 | |
| » W: Frank Williams (1-0) L: Ron Darling (4-7) S: John Franco (18) | Fourth | 9½ out |
| Saturday, July 18 |
| » Lost to Reds (49-42), 7-3 | Shea Stadium (24-17) | 48-42 | Lost 2 |
| » W: Ted Power (7-5) L: Sid Fernandez (9-6) S: Rob Murphy (1) | Fourth | 9½ out |
| Sunday, July 19 |
| » Defeated Reds (49-43), 6-5 | Shea Stadium (25-17) | 49-42 | |
| » W: Jesse Orosco (2-6) L: Bill Scherrer (1-1) | Third | 9½ out |
| Monday, July 20 |
| » Defeated Braves (41-51), 9-2 | Shea Stadium (26-17) | 50-42 | Won 2 |
| » W: Don Schulze (1-0) L: Randy O'Neal (4-2) | Third | 9 out |
| Tuesday, July 21 |
| » Lost to Braves (42-51), 8-3 | Shea Stadium (26-18) | 50-43 | |
| » W: Doyle Alexander (5-6) L: Dwight Gooden (7-3) | Third | 10 out |
| Wednesday, July 22 |
| » Defeated Braves (42-52), 4-3 | Shea Stadium (27-18) | 51-43 | |
| » W: Ron Darling (5-7) L: Zane Smith (8-6) S: Roger McDowell (12) | Third | 10 out |
| Friday, July 24 |
| » Defeated Astros (47-48), 5-2 | Shea Stadium (28-18) | 52-43 | Won 2 |
| » W: Sid Fernandez (10-6) L: Nolan Ryan (4-12) S: Roger McDowell (13) | Third | 9 out |
| » Defeated Astros (47-49), 7-4 | Shea Stadium (29-18) | 53-43 | Won 3 |
| » W: John Mitchell (2-2) L: Bob Knepper (3-12) S: Jesse Orosco (14) | Third | 9 out |
| Saturday, July 25 |
| » Lost to Astros (48-49), 7-5 | Shea Stadium (29-19) | 53-44 | |
| » W: Jim Deshaies (9-4) L: Don Schulze (1-1) S: Dave Smith (17) | Third | 9 out |
| Sunday, July 26 |
| » Lost to Astros (49-49), 5-2 | Shea Stadium (29-20) | 53-45 | Lost 2 |
| » W: Dave Smith (2-0) L: Jesse Orosco (2-7) | Third | 8½ out |
| Tuesday, July 28 |
| » Defeated Cardinals (61-37), 6-4 | Busch Stadium II (1-3) | 54-45 | |
| » W: Ron Darling (6-7) L: Todd Worrell (4-6) S: Roger McDowell (14) | Third | 7½ out |
| Wednesday, July 29 |
| » Defeated Cardinals (61-38), 6-4 | Busch Stadium II (2-3) | 55-45 | Won 2 |
| » W: Roger McDowell (5-3) L: Pat Perry (3-2) | Third | 6½ out |
| Thursday, July 30 |
| » Defeated Cardinals (61-39), 5-3 | Busch Stadium II (3-3) | 56-45 | Won 3 |
| » W: Dwight Gooden (8-3) L: Greg Mathews (7-8) S: Roger McDowell (15) | Third | 5½ out |
| Friday, July 31 |
| » Lost to Expos (58-43), 13-3 | Stade Olympique (2-3) | 56-46 | |
| » W: Dennis Martinez (6-1) L: John Mitchell (2-3) | Third | 6½ out |
| Saturday, August 1 |
| » Defeated Expos (58-44), 12-4 | Stade Olympique (3-3) | 57-46 | |
| » W: Terry Leach (9-0) L: Floyd Youmans (8-5) | Third | 6½ out |
| Sunday, August 2 |
| » Defeated Expos (58-45), 7-4 | Stade Olympique (4-3) | 58-46 | Won 2 |
| » W: Ron Darling (7-7) L: Bob Sebra (6-11) S: Roger McDowell (16) | Third | 6½ out |
| Monday, August 3 |
| » Defeated Phillies (53-51), 3-2 | Shea Stadium (30-20) | 59-46 | Won 3 |
| » W: Roger McDowell (6-3) L: Kent Tekulve (5-4) | Second | 6½ out |
| Tuesday, August 4 |
| » Defeated Phillies (53-52), 5-3 | Shea Stadium (31-20) | 60-46 | Won 4 |
| » W: Dwight Gooden (9-3) L: Bruce Ruffin (9-8) | Second | 5½ out |
| Wednesday, August 5 |
| » Defeated Phillies (53-53), 13-3 | Shea Stadium (32-20) | 61-46 | Won 5 |
| » W: John Mitchell (3-3) L: Kevin Gross (6-10) S: Randy Myers (2) | Second | 4½ out |
| Thursday, August 6 |
| » Defeated Cubs (55-53), 7-6 | Shea Stadium (33-20) | 62-46 | Won 6 |
| » W: Roger McDowell (7-3) L: Lee Smith (3-7) | Second | 4½ out |
| Friday, August 7 |
| » Defeated Cubs (55-54), 7-1 | Shea Stadium (34-20) | 63-46 | Won 7 |
| » W: Ron Darling (8-7) L: Rick Sutcliffe (15-5) | Second | 3½ out |
| Saturday, August 8 |
| » Lost to Cubs (56-54), 5-3 | Shea Stadium (34-21) | 63-47 | |
| » W: Mike Mason (4-3) L: Don Schulze (1-2) S: Lee Smith (27) | Second | 4½ out |
| Sunday, August 9 |
| » Lost to Cubs (57-54), 6-3 | Shea Stadium (34-22) | 63-48 | Lost 2 |
| » W: Scott Sanderson (5-6) L: Dwight Gooden (9-4) S: Lee Smith (28) | Second | 4½ out |
| Monday, August 10 |
| » Lost to Expos (62-49), 2-1 | Shea Stadium (34-23) | 63-49 | Lost 3 |
| » W: Dennis Martinez (7-1) L: John Mitchell (3-4) S: Tim Burke (11) | Second | 5½ out |
| Tuesday, August 11 |
| » Defeated Expos (62-50), 6-2 | Shea Stadium (35-23) | 64-49 | |
| » W: Terry Leach (10-0) L: Floyd Youmans (8-6) | Second | 5½ out |
| Wednesday, August 12 |
| » Defeated Expos (62-51), 4-2 | Shea Stadium (36-23) | 65-49 | Won 2 |
| » W: Ron Darling (9-7) L: Bob Sebra (6-13) S: Roger McDowell (17) | Second | 4½ out |
| Thursday, August 13 |
| » Lost to Cubs (58-57), 7-5 | Wrigley Field (1-3) | 65-50 | |
| » W: Frank DiPino (2-2) L: Roger McDowell (7-4) S: Lee Smith (29) | Second | 4½ out |
| Friday, August 14 |
| » Lost to Cubs (59-57), 6-1 | Wrigley Field (1-4) | 65-51 | Lost 2 |
| » W: Scott Sanderson (6-6) L: John Mitchell (3-5) | Second | 5½ out |
| Saturday, August 15 |
| » Lost to Cubs (60-57), 7-3 | Wrigley Field (1-5) | 65-52 | Lost 3 |
| » W: Jamie Moyer (10-9) L: Terry Leach (10-1) S: Frank DiPino (2) | Third | 5½ out |
| Sunday, August 16 |
| » Defeated Cubs (60-58), 23-10 | Wrigley Field (2-5) | 66-52 | |
| » W: Ron Darling (10-7) L: Greg Maddux (6-11) | Third | 4½ out |
| Monday, August 17 |
| » Major-league debuts: Tom Glavine (Braves) |
| Tuesday, August 18 |
| » Defeated Giants (62-58), 7-2 | Shea Stadium (37-23) | 67-52 | Won 2 |
| » W: Dwight Gooden (10-4) L: Atlee Hammaker (8-9) | Third | 3½ out |
| Wednesday, August 19 |
| » Lost to Giants (63-58), 10-6 | Shea Stadium (37-24) | 67-53 | |
| » W: Scott Garrelts (10-7) L: Roger McDowell (7-5) | Third | 3½ out |
| Thursday, August 20 |
| » Defeated Giants (63-59), 7-4 | Shea Stadium (38-24) | 68-53 | |
| » W: David Cone (3-2) L: Kelly Downs (9-8) S: Randy Myers (3) | Second | 2½ out |
| Friday, August 21 |
| » Lost to Padres (50-72), 6-2 | Shea Stadium (38-25) | 68-54 | |
| » W: Jimmy Jones (6-4) L: Ron Darling (10-8) | Second | 3½ out |
| Saturday, August 22 |
| » Lost to Padres (51-72), 8-3 | Shea Stadium (38-26) | 68-55 | Lost 2 |
| » W: Mark Davis (8-6) L: Sid Fernandez (10-7) S: Rich Gossage (11) | Third | 4½ out |
| Sunday, August 23 |
| » Defeated Padres (51-73), 9-2 | Shea Stadium (39-26) | 69-55 | |
| » W: Dwight Gooden (11-4) L: Eric Nolte (1-2) S: Roger McDowell (18) | Second | 4½ out |
| Monday, August 24 |
| » Defeated Dodgers (55-70), 1-0 | Shea Stadium (40-26) | 70-55 | Won 2 |
| » W: Rick Aguilera (5-2) L: Shawn Hillegas (2-1) S: Roger McDowell (19) | Second | 3½ out |
| Tuesday, August 25 |
| » Lost to Dodgers (56-70), 3-1 | Shea Stadium (40-27) | 70-56 | |
| » W: Fernando Valenzuela (11-11) L: David Cone (3-3) | Second | 4½ out |
| Wednesday, August 26 |
| » Defeated Dodgers (56-71), 3-2 | Shea Stadium (41-27) | 71-56 | |
| » W: Ron Darling (11-8) L: Bob Welch (11-8) S: Roger McDowell (20) | Second | 4½ out |
| Friday, August 28 |
| » Defeated Giants (68-61), 4-0 | Candlestick Park (4-0) | 72-56 | Won 2 |
| » W: Dwight Gooden (12-4) L: Mike LaCoss (11-8) | Second | 4½ out |
| Saturday, August 29 |
| » Lost to Giants (69-61), 9-1 | Candlestick Park (4-1) | 72-57 | |
| » W: Atlee Hammaker (9-9) L: Sid Fernandez (10-8) | Third | 5½ out |
| Sunday, August 30 |
| » Defeated Giants (69-62), 5-3 | Candlestick Park (5-1) | 73-57 | |
| » W: Rick Aguilera (6-2) L: Rick Reuschel (9-7) S: Roger McDowell (21) | Third | 5½ out |
| Monday, August 31 |
| » Defeated Padres (54-77), 6-5 | San Diego/Jack Murphy Stadium (3-1) | 74-57 | Won 2 |
| » W: Jesse Orosco (3-7) L: Keith Comstock (2-1) S: Roger McDowell (22) | Second | 5½ out |
| Tuesday, September 1 |
| » Defeated Padres (54-78), 9-1 | San Diego/Jack Murphy Stadium (4-1) | 75-57 | Won 3 |
| » W: David Cone (4-3) L: Jimmy Jones (6-6) S: Randy Myers (4) | Second | 4½ out |
| Wednesday, September 2 |
| » Defeated Padres (54-79), 4-3 | San Diego/Jack Murphy Stadium (5-1) | 76-57 | Won 4 |
| » W: Dwight Gooden (13-4) L: Ed Whitson (10-10) | Second | 3½ out |
| Friday, September 4 |
| » Defeated Dodgers (56-78), 5-1 | Dodger Stadium (2-2) | 77-57 | Won 5 |
| » W: Rick Aguilera (7-2) L: Shawn Hillegas (2-2) | Second | 3½ out |
| Saturday, September 5 |
| » Defeated Dodgers (56-79), 4-3 | Dodger Stadium (3-2) | 78-57 | Won 6 |
| » W: Ron Darling (12-8) L: Fernando Valenzuela (11-13) S: Roger McDowell (23) | Second | 2½ out |
| Sunday, September 6 |
| » Lost to Dodgers (57-79), 3-2 | Dodger Stadium (3-3) | 78-58 | |
| » W: Tim Belcher (1-0) L: Randy Myers (2-5) | Second | 3½ out |
| » Major-league debuts: Tim Belcher (Dodgers) Gregg Jefferies (Mets) |
| Monday, September 7 |
| » Lost to Phillies (71-66), 5-3 | Shea Stadium (41-28) | 78-59 | Lost 2 |
| » W: Don Carman (10-9) L: Dwight Gooden (13-5) S: Steve Bedrosian (36) | Second | 3½ out |
| Tuesday, September 8 |
| » Defeated Phillies (71-67), 5-2 | Shea Stadium (42-28) | 79-59 | |
| » W: Terry Leach (11-1) L: Bruce Ruffin (10-12) S: Doug Sisk (3) | Second | 2½ out |
| » Major-league debuts: Mark Carreon (Mets) |
| Wednesday, September 9 |
| » Defeated Phillies (71-68), 11-5 | Shea Stadium (43-28) | 80-59 | Won 2 |
| » W: Rick Aguilera (8-2) L: Shane Rawley (17-8) | Second | 1½ out |
| Thursday, September 10 |
| » Major-league debuts: Jose Mesa (Orioles) |
| Friday, September 11 |
| » Lost to Cardinals (82-57), 6-4 | Shea Stadium (43-29) | 80-60 | |
| » W: Ken Dayley (9-4) L: Jesse Orosco (3-8) | Second | 2½ out |
| Saturday, September 12 |
| » Lost to Cardinals (83-57), 8-1 | Shea Stadium (43-30) | 80-61 | Lost 2 |
| » W: Greg Mathews (10-9) L: Dwight Gooden (13-6) | Third | 3½ out |
| » Major-league debuts: Randy Milligan (Mets) |
| Sunday, September 13 |
| » Defeated Cardinals (83-58), 4-2 | Shea Stadium (44-30) | 81-61 | |
| » W: David Cone (5-3) L: Danny Cox (9-7) S: Randy Myers (5) | Second | 2½ out |
| Monday, September 14 |
| » Defeated Cubs (70-72), 6-5 | Shea Stadium (45-30) | 82-61 | Won 2 |
| » W: Rick Aguilera (9-2) L: Drew Hall (0-1) S: Jesse Orosco (15) | Second | 1½ out |
| Tuesday, September 15 |
| » Defeated Cubs (70-73), 12-4 | Shea Stadium (46-30) | 83-61 | Won 3 |
| » W: Sid Fernandez (11-8) L: Greg Maddux (6-12) | Second | 1½ out |
| Wednesday, September 16 |
| » Defeated Expos (81-63), 10-0 | Stade Olympique (5-3) | 84-61 | Won 4 |
| » W: Dwight Gooden (14-6) L: Charlie Lea (0-1) | Second | 1½ out |
| » Major-league debuts: Nelson Santovenia (Expos) |
| Thursday, September 17 |
| » Lost to Expos (82-63), 4-1 | Stade Olympique (5-4) | 84-62 | |
| » W: Pascual Perez (4-0) L: David Cone (5-4) | Second | 1½ out |
| Friday, September 18 |
| » Lost to Pirates (71-76), 10-9 | Three Rivers Stadium (4-3) | 84-63 | Lost 2 |
| » W: John Smiley (4-4) L: Randy Myers (2-6) S: Jim Gott (12) | Second | 1½ out |
| Saturday, September 19 |
| » Defeated Pirates (71-77), 5-4 | Three Rivers Stadium (5-3) | 85-63 | |
| » W: Rick Aguilera (10-2) L: Vicente Palacios (1-1) S: Roger McDowell (24) | Second | 1½ out |
| Sunday, September 20 |
| » Lost to Pirates (72-77), 9-8 | Three Rivers Stadium (5-4) | 85-64 | |
| » W: John Smiley (5-4) L: Bob Ojeda (2-5) | Second | 2½ out |
| Monday, September 21 |
| » Defeated Cubs (71-78), 7-1 | Wrigley Field (3-5) |