| Saturday, January 23 |
| Former Giant Johnny Gee dies in Cortland, NY at the age of 73. |
| Saturday, February 20 |
| Former Giant Bob O'Farrell dies in Waukegan, IL at the age of 92. |
| Tuesday, February 23 |
| Former Giant Pete Donohue dies in Ft.Worth, TX at the age of 88. |
| Wednesday, March 16 |
| Former Giant Jigger Statz dies in Corona Del Mar, CA at the age of 91. |
| Monday, April 4 |
| » Defeated Dodgers (0-1), 5-1 | Dodger Stadium (1-0) | 1-0 | |
| » W: Dave Dravecky (1-0) L: Fernando Valenzuela (0-1) | First | -- |
| Former Giant Jack Aragon dies in Clearwater, FL at the age of 73. |
| Tuesday, April 5 |
| » Lost to Dodgers (1-1), 5-0 | Dodger Stadium (1-1) | 1-1 | |
| » W: Orel Hershiser (1-0) L: Kelly Downs (0-1) | Second | ½ out |
| Thursday, April 7 |
| » Defeated Padres (0-3), 6-1 | Candlestick Park (1-0) | 2-1 | |
| » W: Mike Krukow (1-0) L: Eric Show (0-1) | Second | ½ out |
| Friday, April 8 |
| » Defeated Padres (0-4), 5-1 | Candlestick Park (2-0) | 3-1 | Won 2 |
| » W: Mike LaCoss (1-0) L: Jimmy Jones (0-1) S: Don Robinson (1) | Second | ½ out |
| Saturday, April 9 |
| » Defeated Padres (0-5), 3-1 | Candlestick Park (3-0) | 4-1 | Won 3 |
| » W: Rick Reuschel (1-0) L: Mark Grant (0-1) S: Scott Garrelts (1) | First | -- |
| Sunday, April 10 |
| » Lost to Padres (1-5), 6-4 | Candlestick Park (3-1) | 4-2 | |
| » W: Ed Whitson (1-0) L: Dave Dravecky (1-1) S: Lance McCullers (1) | Third | 1 out |
| Monday, April 11 |
| » Lost to Reds (4-2), 4-0 | Candlestick Park (3-2) | 4-3 | Lost 2 |
| » W: Mario Soto (1-0) L: Kelly Downs (0-2) | Fourth | 1½ out |
| Tuesday, April 12 |
| » Lost to Reds (5-2), 4-3 | Candlestick Park (3-3) | 4-4 | Lost 3 |
| » W: Danny Jackson (2-0) L: Scott Garrelts (0-1) S: John Franco (1) | Third | 2 out |
| Wednesday, April 13 |
| » Defeated Reds (5-3), 5-4 | Candlestick Park (4-3) | 5-4 | |
| » W: Don Robinson (1-0) L: Pat Perry (1-1) | Fourth | 2 out |
| Friday, April 15 |
| » Defeated Padres (3-7), 8-3 | San Diego/Jack Murphy Stadium (1-0) | 6-4 | Won 2 |
| » W: Rick Reuschel (2-0) L: Mark Grant (0-2) S: Atlee Hammaker (1) | Third | 1½ out |
| Saturday, April 16 |
| » Lost to Padres (4-7), 2-1 | San Diego/Jack Murphy Stadium (1-1) | 6-5 | |
| » W: Mark Davis (1-0) L: Don Robinson (1-1) | Fourth | 2 out |
| Sunday, April 17 |
| » Defeated Padres (4-8), 9-4 | San Diego/Jack Murphy Stadium (2-1) | 7-5 | |
| » W: Scott Garrelts (1-1) L: Lance McCullers (0-2) | Third | 1½ out |
| Monday, April 18 |
| » Defeated Reds (7-6), 6-3 | Riverfront Stadium (1-0) | 8-5 | Won 2 |
| » W: Craig Lefferts (1-0) L: Pat Perry (1-2) S: Joe Price (1) | Third | 1 out |
| Tuesday, April 19 |
| » Lost to Reds (8-6), 8-0 | Riverfront Stadium (1-1) | 8-6 | |
| » W: Dennis Rasmussen (1-1) L: Mike LaCoss (1-1) | Third | 1½ out |
| Wednesday, April 20 |
| » Defeated Reds (8-7), 5-3 | Riverfront Stadium (2-1) | 9-6 | |
| » W: Rick Reuschel (3-0) L: Ron Robinson (0-2) S: Atlee Hammaker (2) | Second | 1 out |
| Thursday, April 21 |
| » Lost to Reds (9-7), 7-6 | Riverfront Stadium (2-2) | 9-7 | |
| » W: Pat Perry (2-2) L: Joe Price (0-1) | Third | 2 out |
| Saturday, April 23 |
| » Lost to Dodgers (10-4), 10-3 | Candlestick Park (4-4) | 9-8 | Lost 2 |
| » W: Orel Hershiser (4-0) L: Mike Krukow (1-1) | Fourth | 2½ out |
| Sunday, April 24 |
| » Lost to Dodgers (11-4), 4-0 | Candlestick Park (4-5) | 9-9 | Lost 3 |
| » W: Fernando Valenzuela (2-2) L: Mike LaCoss (1-2) S: Jay Howell (1) | Fourth | 3½ out |
| Tuesday, April 26 |
| » Lost to Pirates (14-4), 2-0 | Candlestick Park (4-6) | 9-10 | Lost 4 |
| » W: John Smiley (1-2) L: Rick Reuschel (3-1) S: Jim Gott (2) | Fourth | 3½ out |
| Wednesday, April 27 |
| » Defeated Pirates (14-5), 6-4 | Candlestick Park (5-6) | 10-10 | |
| » W: Dave Dravecky (2-1) L: Doug Drabek (3-1) S: Joe Price (2) | Fourth | 3½ out |
| Thursday, April 28 |
| » Lost to Pirates (15-5), 2-1 | Candlestick Park (5-7) | 10-11 | |
| » W: Jeff Robinson (2-0) L: Craig Lefferts (1-1) S: Jim Gott (3) | Fourth | 3½ out |
| Friday, April 29 |
| » Defeated Cubs (9-12), 4-3 | Candlestick Park (6-7) | 11-11 | |
| » W: Atlee Hammaker (1-0) L: Rick Sutcliffe (1-3) S: Don Robinson (2) | Fourth | 3½ out |
| Saturday, April 30 |
| » Lost to Cubs (10-12), 2-1 | Candlestick Park (6-8) | 11-12 | |
| » W: Les Lancaster (1-2) L: Joe Price (0-2) S: Rich Gossage (2) | Fourth | 4 out |
| Sunday, May 1 |
| » Defeated Cubs (10-13), 7-6 | Candlestick Park (7-8) | 12-12 | |
| » W: Rick Reuschel (4-1) L: Greg Maddux (4-2) S: Atlee Hammaker (3) | Third | 3 out |
| Monday, May 2 |
| » Lost to Cardinals (10-14), 5-1 | Candlestick Park (7-9) | 12-13 | |
| » W: Jose DeLeon (2-2) L: Dave Dravecky (2-2) S: Todd Worrell (7) | Fourth | 3½ out |
| Tuesday, May 3 |
| » Defeated Cardinals (10-15), 2-0 | Candlestick Park (8-9) | 13-13 | |
| » W: Atlee Hammaker (2-0) L: Scott Terry (0-1) S: Craig Lefferts (1) | Third | 3½ out |
| Wednesday, May 4 |
| » Lost to Cardinals (11-15), 5-3 | Candlestick Park (8-10) | 13-14 | |
| » W: Greg Mathews (2-2) L: Mike Krukow (1-2) S: Todd Worrell (8) | Fourth | 4½ out |
| Friday, May 6 |
| » Lost to Cubs (14-13), 3-2 | Wrigley Field (0-1) | 13-15 | Lost 2 |
| » W: Greg Maddux (5-2) L: Mike LaCoss (1-3) S: Rich Gossage (4) | Fourth | 5½ out |
| Saturday, May 7 |
| » Defeated Cubs (14-14), 2-1 | Wrigley Field (1-1) | 14-15 | |
| » W: Rick Reuschel (5-1) L: Jamie Moyer (2-3) S: Don Robinson (3) | Third | 4½ out |
| Sunday, May 8 |
| » Lost to Cubs (15-14), 13-7 | Wrigley Field (1-2) | 14-16 | |
| » W: Mike Capel (1-0) L: Scott Garrelts (1-2) | Third | 5½ out |
| Monday, May 9 |
| » Defeated Pirates (19-11), 8-6 | Three Rivers Stadium (1-0) | 15-16 | |
| » W: Don Robinson (2-1) L: Jeff Robinson (2-1) S: Craig Lefferts (2) | Third | 5 out |
| Tuesday, May 10 |
| » Lost to Pirates (20-11), 6-2 | Three Rivers Stadium (1-1) | 15-17 | |
| » W: Vicente Palacios (1-2) L: Kelly Downs (0-3) S: Jim Gott (5) | Fourth | 6 out |
| Wednesday, May 11 |
| » Defeated Cardinals (14-18), 5-4 | Busch Stadium II (1-0) | 16-17 | |
| » W: Atlee Hammaker (3-0) L: Bob Forsch (2-3) | Third | 5 out |
| Thursday, May 12 |
| » Lost to Cardinals (15-18), 13-12 | Busch Stadium II (1-1) | 16-18 | |
| » W: Scott Terry (1-1) L: Craig Lefferts (1-2) S: Todd Worrell (10) | Fourth | 5 out |
| Former Giant Hank Schenz dies in Cincinnati, OH at the age of 70. |
| Friday, May 13 |
| » Defeated Mets (23-9), 3-2 | Candlestick Park (9-10) | 17-18 | |
| » W: Kelly Downs (1-3) L: Bob Ojeda (3-2) | Third | 4 out |
| Saturday, May 14 |
| » Defeated Mets (23-10), 3-2 | Candlestick Park (10-10) | 18-18 | Won 2 |
| » W: Mike Krukow (2-2) L: Ron Darling (3-3) S: Atlee Hammaker (4) | Third | 4 out |
| Sunday, May 15 |
| » Defeated Mets (23-11), 5-1 | Candlestick Park (11-10) | 19-18 | Won 3 |
| » W: Mike LaCoss (2-3) L: Sid Fernandez (1-3) | Third | 4 out |
| Monday, May 16 |
| » Lost to Phillies (13-21), 3-0 | Candlestick Park (11-11) | 19-19 | |
| » W: Shane Rawley (2-5) L: Rick Reuschel (5-2) | Fourth | 4½ out |
| Tuesday, May 17 |
| » Lost to Phillies (14-21), 8-1 | Candlestick Park (11-12) | 19-20 | Lost 2 |
| » W: Kevin Gross (4-1) L: Kelly Downs (1-4) | Fourth | 4½ out |
| Wednesday, May 18 |
| » Defeated Phillies (14-22), 5-1 | Candlestick Park (12-12) | 20-20 | |
| » W: Mike Krukow (3-2) L: Bruce Ruffin (3-4) S: Scott Garrelts (2) | Fourth | 3½ out |
| Friday, May 20 |
| » Defeated Expos (17-21), 11-2 | Candlestick Park (13-12) | 21-20 | Won 2 |
| » W: Mike LaCoss (3-3) L: Bryn Smith (2-3) | Fourth | 3½ out |
| Saturday, May 21 |
| » Lost to Expos (18-21), 6-0 | Candlestick Park (13-13) | 21-21 | |
| » W: Floyd Youmans (1-3) L: Rick Reuschel (5-3) | Fourth | 3½ out |
| Sunday, May 22 |
| » Defeated Expos (18-22), 7-2 | Candlestick Park (14-13) | 22-21 | |
| » W: Kelly Downs (2-4) L: Neal Heaton (1-3) | Third | 3½ out |
| Tuesday, May 24 |
| » Defeated Mets (30-12), 4-2 | Shea Stadium (1-0) | 23-21 | Won 2 |
| » W: Mike Krukow (4-2) L: Bob Ojeda (4-3) S: Atlee Hammaker (5) | Third | 3 out |
| Wednesday, May 25 |
| » Lost to Mets (31-12), 6-3 | Shea Stadium (1-1) | 23-22 | |
| » W: Ron Darling (5-3) L: Mike LaCoss (3-4) S: Randy Myers (7) | Third | 3 out |
| Thursday, May 26 |
| » Defeated Mets (31-13), 5-2 | Shea Stadium (2-1) | 24-22 | |
| » W: Rick Reuschel (6-3) L: Dwight Gooden (8-1) S: Craig Lefferts (3) | Third | 3 out |
| Friday, May 27 |
| » Lost to Phillies (16-27), 5-2 | Veteran's Stadium (0-1) | 24-23 | |
| » W: Kevin Gross (5-2) L: Kelly Downs (2-5) S: Steve Bedrosian (2) | Third | 4 out |
| Saturday, May 28 |
| » Lost to Phillies (17-27), 4-3 | Veteran's Stadium (0-2) | 24-24 | Lost 2 |
| » W: Greg Harris (1-1) L: Randy Bockus (0-1) | Third | 4 out |
| Sunday, May 29 |
| » Lost to Phillies (18-27), 4-2 | Veteran's Stadium (0-3) | 24-25 | Lost 3 |
| » W: Bruce Ruffin (4-4) L: Mike Krukow (4-3) S: Steve Bedrosian (3) | Third | 5 out |
| Monday, May 30 |
| » Lost to Expos (23-24), 3-2 | Stade Olympique (0-1) | 24-26 | Lost 4 |
| » W: Andy McGaffigan (3-0) L: Scott Garrelts (1-3) | Third | 5 out |
| Tuesday, May 31 |
| » Defeated Expos (23-25), 9-2 | Stade Olympique (1-1) | 25-26 | |
| » W: Rick Reuschel (7-3) L: Bryn Smith (3-4) | Third | 4 out |
| Wednesday, June 1 |
| » Defeated Expos (23-26), 2-1 | Stade Olympique (2-1) | 26-26 | Won 2 |
| » W: Kelly Downs (3-5) L: Floyd Youmans (1-4) S: Craig Lefferts (4) | Third | 4 out |
| Thursday, June 2 |
| » Major-league debuts: John Costello (Cardinals) |
| Friday, June 3 |
| » Lost to Astros (28-22), 8-4 | Candlestick Park (14-14) | 26-27 | |
| » W: Dave Smith (2-2) L: Scott Garrelts (1-4) | Third | 5 out |
| Saturday, June 4 |
| » Defeated Astros (28-23), 8-2 | Candlestick Park (15-14) | 27-27 | |
| » W: Mike LaCoss (4-4) L: Nolan Ryan (5-3) S: Joe Price (3) | Third | 4 out |
| Sunday, June 5 |
| » Defeated Astros (28-24), 9-3 | Candlestick Park (16-14) | 28-27 | Won 2 |
| » W: Rick Reuschel (8-3) L: Jim Deshaies (4-3) S: Craig Lefferts (5) | Third | 4 out |
| Tuesday, June 7 |
| » Defeated Braves (18-34), 5-0 | Candlestick Park (17-14) | 29-27 | Won 3 |
| » W: Kelly Downs (4-5) L: Rick Mahler (7-5) | Third | 2½ out |
| Wednesday, June 8 |
| » Lost to Braves (19-34), 5-4 | Candlestick Park (17-15) | 29-28 | |
| » W: Jose Alvarez (2-1) L: Craig Lefferts (1-3) S: Bruce Sutter (9) | Third | 3½ out |
| Thursday, June 9 |
| » Defeated Braves (19-35), 6-4 | Candlestick Park (18-15) | 30-28 | |
| » W: Mike LaCoss (5-4) L: Pete Smith (1-6) S: Scott Garrelts (3) | Third | 3½ out |
| Friday, June 10 |
| » Defeated Reds (26-33), 9-6 | Candlestick Park (19-15) | 31-28 | Won 2 |
| » W: Rick Reuschel (9-3) L: Mario Soto (3-6) S: Don Robinson (4) | Third | 2½ out |
| Saturday, June 11 |
| » Lost to Reds (27-33), 7-2 | Candlestick Park (19-16) | 31-29 | |
| » W: Tom Browning (4-3) L: Craig Lefferts (1-4) | Third | 2½ out |
| Sunday, June 12 |
| » Lost to Reds (28-33), 10-6 | Candlestick Park (19-17) | 31-30 | Lost 2 |
| » W: Danny Jackson (6-3) L: Kelly Downs (4-6) | Third | 2½ out |
| Monday, June 13 |
| » Lost to Padres (26-36), 7-3 | San Diego/Jack Murphy Stadium (2-2) | 31-31 | Lost 3 |
| » W: Eric Show (5-6) L: Mike Krukow (4-4) S: Mark Davis (10) | Third | 3 out |
| Tuesday, June 14 |
| » Lost to Padres (27-36), 8-5 | San Diego/Jack Murphy Stadium (2-3) | 31-32 | Lost 4 |
| » W: Greg Booker (1-2) L: Craig Lefferts (1-5) S: Lance McCullers (5) | Third | 4 out |
| Wednesday, June 15 |
| » Defeated Padres (27-37), 4-2 | San Diego/Jack Murphy Stadium (3-3) | 32-32 | |
| » W: Rick Reuschel (10-3) L: Andy Hawkins (5-6) S: Don Robinson (5) | Third | 4 out |
| Friday, June 17 |
| » Lost to Reds (31-34), 6-0 | Riverfront Stadium (2-3) | 32-33 | |
| » W: Danny Jackson (7-3) L: Atlee Hammaker (3-1) | Third | 3 out |
| Saturday, June 18 |
| » Lost to Reds (32-34), 3-2 | Riverfront Stadium (2-4) | 32-34 | Lost 2 |
| » W: Ron Robinson (3-5) L: Kelly Downs (4-7) S: John Franco (8) | Third | 4 out |
| Sunday, June 19 |
| » Defeated Reds (32-35), 5-3 | Riverfront Stadium (3-4) | 33-34 | |
| » W: Mike Krukow (5-4) L: Jose Rijo (8-2) S: Don Robinson (6) | Third | 4½ out |
| Monday, June 20 |
| » Lost to Padres (30-40), 2-1 | Candlestick Park (19-18) | 33-35 | |
| » W: Andy Hawkins (6-6) L: Mike LaCoss (5-5) S: Mark Davis (12) | Third | 5½ out |
| Tuesday, June 21 |
| » Lost to Padres (31-40), 8-3 | Candlestick Park (19-19) | 33-36 | Lost 2 |
| » W: Dennis Rasmussen (5-6) L: Rick Reuschel (10-4) | Third | 6½ out |
| Wednesday, June 22 |
| » Defeated Padres (31-41), 8-7 | Candlestick Park (20-19) | 34-36 | |
| » W: Craig Lefferts (2-5) L: Mark Davis (2-5) | Third | 5½ out |
| Thursday, June 23 |
| » Major-league debuts: Mike Fitzgerald (Cardinals) |
| Friday, June 24 |
| » Defeated Astros (38-33), 11-0 | Astrodome (1-0) | 35-36 | Won 2 |
| » W: Kelly Downs (5-7) L: Nolan Ryan (5-5) | Third | 5½ out |
| Saturday, June 25 |
| » Defeated Astros (38-34), 4-1 | Astrodome (2-0) | 36-36 | Won 3 |
| » W: Mike Krukow (6-4) L: Danny Darwin (3-6) | Third | 5½ out |
| Sunday, June 26 |
| » Lost to Astros (39-34), 6-0 | Astrodome (2-1) | 36-37 | |
| » W: Jim Deshaies (5-5) L: Mike LaCoss (5-6) | Third | 6½ out |
| » Major-league debuts: Craig Biggio (Astros) |
| Monday, June 27 |
| » Defeated Braves (26-46), 10-9 | Atlanta-Fulton County Stadium (1-0) | 37-37 | |
| » W: Atlee Hammaker (4-1) L: Rick Mahler (8-7) S: Scott Garrelts (4) | Third | 6½ out |
| Tuesday, June 28 |
| » Defeated Braves (26-47), 13-7 | Atlanta-Fulton County Stadium (2-0) | 38-37 | Won 2 |
| » W: Kelly Downs (6-7) L: German Jimenez (0-1) S: Craig Lefferts (6) | Third | 5½ out |
| Wednesday, June 29 |
| » Defeated Braves (26-48), 7-2 | Atlanta-Fulton County Stadium (3-0) | 39-37 | Won 3 |
| » W: Don Robinson (3-1) L: Pete Smith (2-8) S: Scott Garrelts (5) | Third | 5½ out |
| Friday, July 1 |
| » Lost to Pirates (44-34), 5-2 | Candlestick Park (20-20) | 39-38 | |
| » W: Jeff Robinson (6-2) L: Atlee Hammaker (4-2) | Third | 5½ out |
| Saturday, July 2 |
| » Defeated Pirates (44-35), 2-1 | Candlestick Park (21-20) | 40-38 | |
| » W: Mike LaCoss (6-6) L: Dave Rucker (0-1) S: Scott Garrelts (6) | Second | 5½ out |
| Sunday, July 3 |
| » Defeated Pirates (44-36), 4-0 | Candlestick Park (22-20) | 41-38 | Won 2 |
| » W: Kelly Downs (7-7) L: Mike Dunne (5-7) | Second | 4½ out |
| Monday, July 4 |
| » Lost to Cubs (44-36), 3-2 | Candlestick Park (22-21) | 41-39 | |
| » W: Greg Maddux (14-3) L: Atlee Hammaker (4-3) | Second | 5½ out |
| Tuesday, July 5 |
| » Defeated Cubs (44-37), 9-0 | Candlestick Park (23-21) | 42-39 | |
| » W: Terry Mulholland (1-0) L: Calvin Schiraldi (4-7) | Second | 5½ out |
| Wednesday, July 6 |
| » Defeated Cubs (44-38), 2-0 | Candlestick Park (24-21) | 43-39 | Won 2 |
| » W: Rick Reuschel (11-4) L: Jamie Moyer (5-8) S: Scott Garrelts (7) | Second | 5½ out |
| » Major-league debuts: Gary Varsho (Cubs) |
| Friday, July 8 |
| » Defeated Cardinals (38-46), 1-0 | Candlestick Park (25-21) | 44-39 | Won 3 |
| » W: Mike LaCoss (7-6) L: Joe Magrane (1-3) | Second | 4½ out |
| Saturday, July 9 |
| » Defeated Cardinals (38-47), 21-2 | Candlestick Park (26-21) | 45-39 | Won 4 |
| » W: Kelly Downs (8-7) L: John Tudor (4-4) | Second | 3½ out |
| Sunday, July 10 |
| » Defeated Cardinals (38-48), 2-1 | Candlestick Park (27-21) | 46-39 | Won 5 |
| » W: Terry Mulholland (2-0) L: Danny Cox (2-5) | Second | 2½ out |
| Thursday, July 14 |
| » Lost to Pirates (50-37), 9-2 | Three Rivers Stadium (1-2) | 46-40 | |
| » W: Brian Fisher (5-6) L: Rick Reuschel (11-5) | Second | 4 out |
| Friday, July 15 |
| » Lost to Pirates (51-37), 8-5 | Three Rivers Stadium (1-3) | 46-41 | Lost 2 |
| » W: Bob Kipper (2-2) L: Kelly Downs (8-8) S: Jim Gott (12) | Second | 5 out |
| Saturday, July 16 |
| » Lost to Pirates (52-37), 10-1 | Three Rivers Stadium (1-4) | 46-42 | Lost 3 |
| » W: Doug Drabek (7-5) L: Mike LaCoss (7-7) | Second | 5½ out |
| Sunday, July 17 |
| » Lost to Pirates (53-37), 5-4 | Three Rivers Stadium (1-5) | 46-43 | Lost 4 |
| » W: Jeff Robinson (7-2) L: Joe Price (0-3) S: Jim Gott (13) | Second | 7 out |
| Monday, July 18 |
| » Lost to Cubs (46-45), 8-3 | Wrigley Field (1-3) | 46-44 | Lost 5 |
| » W: Pat Perry (4-2) L: Craig Lefferts (2-6) | Third | 8 out |
| Tuesday, July 19 |
| » Defeated Cubs (46-46), 3-1 | Wrigley Field (2-3) | 47-44 | |
| » W: Rick Reuschel (12-5) L: Rick Sutcliffe (7-8) S: Scott Garrelts (8) | Third | 7 out |
| Wednesday, July 20 |
| » Defeated Cubs (46-47), 12-2 | Wrigley Field (3-3) | 48-44 | Won 2 |
| » W: Kelly Downs (9-8) L: Greg Maddux (15-4) | Second | 6 out |
| Thursday, July 21 |
| » Lost to Cardinals (42-52), 6-4 | Busch Stadium II (1-2) | 48-45 | |
| » W: Danny Cox (3-5) L: Joe Price (0-4) S: Todd Worrell (19) | Third | 6 out |
| Friday, July 22 |
| » Lost to Cardinals (43-52), 4-2 | Busch Stadium II (1-3) | 48-46 | Lost 2 |
| » W: Dan Quisenberry (1-1) L: Craig Lefferts (2-7) | Third | 7 out |
| Saturday, July 23 |
| » Defeated Cardinals (43-53), 6-5 | Busch Stadium II (2-3) | 49-46 | |
| » W: Scott Garrelts (2-4) L: Todd Worrell (4-8) | Third | 7 out |
| Sunday, July 24 |
| » Defeated Cardinals (43-54), 5-0 | Busch Stadium II (3-3) | 50-46 | Won 2 |
| » W: Rick Reuschel (13-5) L: Jose DeLeon (6-8) | Third | 7 out |
| Former Giant Joe Orengo dies in San Francisco, CA at the age of 74. |
| Monday, July 25 |
| » Defeated Dodgers (57-40), 3-1 | Candlestick Park (28-21) | 51-46 | Won 3 |
| » W: Kelly Downs (10-8) L: Fernando Valenzuela (5-8) | Third | 6 out |
| Tuesday, July 26 |
| » Lost to Dodgers (58-40), 7-3 | Candlestick Park (28-22) | 51-47 | |
| » W: Orel Hershiser (14-5) L: Terry Mulholland (2-1) S: Jay Howell (13) | Third | 8 out |
| » Lost to Dodgers (59-40), 6-5 | Candlestick Park (28-23) | 51-48 | Lost 2 |
| » W: Brian Holton (6-2) L: Scott Garrelts (2-5) | Third | 8 out |
| Wednesday, July 27 |
| » Defeated Dodgers (59-41), 2-1 | Candlestick Park (29-23) | 52-48 | |
| » W: Joe Price (1-4) L: Tim Leary (10-7) | Third | 7 out |
| Friday, July 29 |
| » Defeated Braves (35-66), 5-3 | Candlestick Park (30-23) | 53-48 | Won 2 |
| » W: Rick Reuschel (14-5) L: Zane Smith (4-8) | Third | 6 out |
| Saturday, July 30 |
| » Defeated Braves (35-67), 2-1 | Candlestick Park (31-23) | 54-48 | Won 3 |
| » W: Kelly Downs (11-8) L: Rick Mahler (8-10) S: Craig Lefferts (7) | Third | 5 out |
| Sunday, July 31 |
| » Defeated Braves (35-68), 4-2 | Candlestick Park (32-23) | 55-48 | Won 4 |
| » W: Randy Bockus (1-1) L: Jose Alvarez (3-5) S: Scott Garrelts (9) | Second | 4½ out |
| » Defeated Braves (35-69), 3-2 | Candlestick Park (33-23) | 56-48 | Won 5 |
| » W: Scott Garrelts (3-5) L: Paul Assenmacher (5-6) | Second | 4½ out |
| Monday, August 1 |
| » Defeated Astros (56-49), 4-1 | Candlestick Park (34-23) | 57-48 | Won 6 |
| » W: Atlee Hammaker (5-3) L: Nolan Ryan (8-8) | Second | 3½ out |
| Tuesday, August 2 |
| » Lost to Astros (57-49), 13-10 | Candlestick Park (34-24) | 57-49 | |
| » W: Danny Darwin (5-9) L: Ron Davis (0-1) S: Dave Smith (18) | Second | 4½ out |
| Wednesday, August 3 |
| » Lost to Astros (58-49), 3-2 | Candlestick Park (34-25) | 57-50 | Lost 2 |
| » W: Mike Scott (11-3) L: Scott Garrelts (3-6) S: Dave Smith (19) | Third | 4½ out |
| Friday, August 5 |
| » Lost to Braves (37-71), 8-5 | Atlanta-Fulton County Stadium (3-1) | 57-51 | Lost 3 |
| » W: Rick Mahler (9-10) L: Don Robinson (3-2) S: Joe Boever (1) | Third | 4½ out |
| » Major-league debuts: Jeff Brantley (Giants) |
| Saturday, August 6 |
| » Lost to Braves (38-71), 7-2 | Atlanta-Fulton County Stadium (3-2) | 57-52 | Lost 4 |
| » W: Pete Smith (4-11) L: Atlee Hammaker (5-4) S: Jose Alvarez (1) | Third | 5½ out |
| Sunday, August 7 |
| » Defeated Braves (38-72), 14-4 | Atlanta-Fulton County Stadium (4-2) | 58-52 | |
| » W: Rick Reuschel (15-5) L: Tom Glavine (3-13) | Third | 4½ out |
| Monday, August 8 |
| » Defeated Braves (38-73), 5-2 | Atlanta-Fulton County Stadium (5-2) | 59-52 | Won 2 |
| » W: Ron Davis (1-1) L: John Smoltz (1-3) S: Scott Garrelts (10) | Third | 3½ out |
| Tuesday, August 9 |
| » Lost to Astros (62-50), 3-2 | Astrodome (2-2) | 59-53 | |
| » W: Juan Agosto (8-0) L: Kelly Downs (11-9) S: Dave Smith (21) | Third | 3½ out |
| Wednesday, August 10 |
| » Defeated Astros (62-51), 5-0 | Astrodome (3-2) | 60-53 | |
| » W: Don Robinson (4-2) L: Jim Deshaies (8-9) | Third | 3½ out |
| Thursday, August 11 |
| » Defeated Astros (62-52), 6-0 | Astrodome (4-2) | 61-53 | Won 2 |
| » W: Atlee Hammaker (6-4) L: Nolan Ryan (8-10) | Third | 2½ out |
| Friday, August 12 |
| » Lost to Dodgers (64-50), 7-3 | Dodger Stadium (1-2) | 61-54 | |
| » W: Tim Leary (12-8) L: Rick Reuschel (15-6) S: Alejandro Pena (9) | Third | 3½ out |
| Saturday, August 13 |
| » Lost to Dodgers (65-50), 2-1 | Dodger Stadium (1-3) | 61-55 | Lost 2 |
| » W: Alejandro Pena (5-5) L: Joe Price (1-5) | Third | 4½ out |
| » Major-league debuts: Ramon Martinez (Dodgers) |
| Sunday, August 14 |
| » Defeated Dodgers (65-51), 15-4 | Dodger Stadium (2-3) | 62-55 | |
| » W: Kelly Downs (12-9) L: Orel Hershiser (16-7) S: Jeff Brantley (1) | Third | 3½ out |
| Monday, August 15 |
| » Lost to Dodgers (66-51), 1-0 | Dodger Stadium (2-4) | 62-56 | |
| » W: Tim Belcher (9-4) L: Don Robinson (4-3) S: Jesse Orosco (7) | Third | 4½ out |
| Tuesday, August 16 |
| » Lost to Mets (71-48), 13-6 | Candlestick Park (34-26) | 62-57 | Lost 2 |
| » W: Dwight Gooden (14-6) L: Atlee Hammaker (6-5) | Third | 5½ out |
| Wednesday, August 17 |
| » Defeated Mets (71-49), 4-0 | Candlestick Park (35-26) | 63-57 | |
| » W: Rick Reuschel (16-6) L: David Cone (12-3) | Third | 5½ out |
| Thursday, August 18 |
| » Defeated Mets (71-50), 4-1 | Candlestick Park (36-26) | 64-57 | Won 2 |
| » W: Mike Krukow (7-4) L: Bob Ojeda (8-12) S: Scott Garrelts (11) | Third | 5½ out |
| Friday, August 19 |
| » Defeated Phillies (51-70), 6-2 | Candlestick Park (37-26) | 65-57 | Won 3 |
| » W: Kelly Downs (13-9) L: Bruce Ruffin (6-9) S: Scott Garrelts (12) | Third | 5½ out |
| » Major-league debuts: Shane Turner (Phillies) |
| Saturday, August 20 |
| » Defeated Phillies (51-71), 4-3 | Candlestick Park (38-26) | 66-57 | Won 4 |
| » W: Don Robinson (5-3) L: Marvin Freeman (0-1) S: Scott Garrelts (13) | Second | 5½ out |
| Sunday, August 21 |
| » Defeated Phillies (51-72), 6-3 | Candlestick Park (39-26) | 67-57 | Won 5 |
| » W: Atlee Hammaker (7-5) L: Don Carman (9-8) S: Lary Sorensen (1) | Second | 5½ out |
| Monday, August 22 |
| » Defeated Expos (63-61), 3-2 | Candlestick Park (40-26) | 68-57 | Won 6 |
| » W: Rick Reuschel (17-6) L: Bryn Smith (8-8) | Second | 4½ out |
| Tuesday, August 23 |
| » Lost to Expos (64-61), 2-1 | Candlestick Park (40-27) | 68-58 | |
| » W: Andy McGaffigan (5-0) L: Scott Garrelts (3-7) S: Joe Hesketh (5) | Second | 4½ out |
| Wednesday, August 24 |
| » Lost to Expos (65-61), 7-5 | Candlestick Park (40-28) | 68-59 | Lost 2 |
| » W: Dennis Martinez (15-9) L: Roger Samuels (0-1) S: Joe Hesketh (6) | Second | 4½ out |
| Thursday, August 25 |
| » Major-league debuts: Keith Brown (Reds) |
| Friday, August 26 |
| » Lost to Mets (75-52), 3-0 | Shea Stadium (2-2) | 68-60 | Lost 3 |
| » W: Sid Fernandez (8-10) L: Don Robinson (5-4) S: Randy Myers (19) | Third | 5½ out |
| Saturday, August 27 |
| » Lost to Mets (76-52), 2-1 | Shea Stadium (2-3) | 68-61 | Lost 4 |
| » W: Ron Darling (13-9) L: Rick Reuschel (17-7) S: Randy Myers (20) | Third | 6½ out |
| Sunday, August 28 |
| » Defeated Mets (76-53), 7-4 | Shea Stadium (3-3) | 69-61 | |
| » W: Scott Garrelts (4-7) L: Roger McDowell (5-3) | Third | 6½ out |
| Monday, August 29 |
| » Lost to Phillies (53-77), 3-0 | Veteran's Stadium (0-4) | 69-62 | |
| » W: Shane Rawley (6-13) L: Atlee Hammaker (7-6) S: Steve Bedrosian (23) | Third | 7½ out |
| Tuesday, August 30 |
| » Lost to Phillies (54-77), 7-5 | Veteran's Stadium (0-5) | 69-63 | Lost 2 |
| » W: Steve Bedrosian (4-6) L: Craig Lefferts (2-8) | Third | 8½ out |
| Wednesday, August 31 |
| » Defeated Phillies (54-78), 3-2 | Veteran's Stadium (1-5) | 70-63 | |
| » W: Scott Garrelts (5-7) L: Bruce Ruffin (6-10) | Third | 7½ out |
| Friday, September 2 |
| » Lost to Expos (68-65), 10-0 | Stade Olympique (2-2) | 70-64 | |
| » W: Bryn Smith (10-8) L: Atlee Hammaker (7-7) | Third | 7½ out |
| » Major-league debuts: Jeff Huson (Expos) |
| Saturday, September 3 |
| » Lost to Expos (69-65), 6-4 | Stade Olympique (2-3) | 70-65 | Lost 2 |
| » W: Andy McGaffigan (6-0) L: Roger Samuels (0-2) | Fourth | 7½ out |
| Sunday, September 4 |
| » Lost to Expos (70-65), 3-2 | Stade Olympique (2-4) | 70-66 | Lost 3 |
| » W: Brian Holman (3-6) L: Rick Reuschel (17-8) S: Tim Burke (14) | Fourth | 8 out |
| Monday, September 5 |
| » Lost to Padres (68-67), 7-4 | Candlestick Park (40-29) | 70-67 | Lost 4 |
| » W: Eric Show (12-11) L: Trevor Wilson (0-1) | Fourth | 9 out |
| » Major-league debuts: Trevor Wilson (Giants) |
| Tuesday, September 6 |
| » Lost to Padres (69-67), 4-3 | Candlestick Park (40-30) | 70-68 | Lost 5 |
| » W: Dennis Rasmussen (13-8) L: Scott Garrelts (5-8) S: Mark Davis (26) | Fourth | 9 out |
| Wednesday, September 7 |
| » Lost to Braves (48-89), 4-1 | Candlestick Park (40-31) | 70-69 | Lost 6 |
| » W: Tom Glavine (6-15) L: Jeff Brantley (0-1) | Fifth | 10 out |
| Thursday, September 8 |
| » Defeated Braves (48-90), 3-2 | Candlestick Park (41-31) | 71-69 | |
| » W: Don Robinson (6-4) L: Charlie Puleo (3-4) | Fourth | 9 out |
| Friday, September 9 |
| » Lost to Astros (76-65), 4-3 | Candlestick Park (41-32) | 71-70 | |
| » W: Danny Darwin (7-11) L: Scott Garrelts (5-9) | Fourth | 9 out |
| Saturday, September 10 |
| » Defeated Astros (76-66), 3-2 | Candlestick Park (42-32) | 72-70 | |
| » W: Craig Lefferts (3-8) L: Juan Agosto (10-2) S: Lary Sorensen (2) | Fourth | 9 out |
| Sunday, September 11 |
| » Lost to Astros (77-66), 4-1 | Candlestick Park (42-33) | 72-71 | |
| » W: Jim Deshaies (10-12) L: Atlee Hammaker (7-8) | Fifth | 10 out |
| » Major-league debuts: Charlie Hayes (Giants) |
| Monday, September 12 |
| » Defeated Padres (72-70), 4-2 | San Diego/Jack Murphy Stadium (4-3) | 73-71 | |
| » W: Dennis Cook (1-0) L: Andy Hawkins (14-11) S: Joe Price (4) | Fourth | 10 out |
| » Major-league debuts: Dennis Cook (Giants) |
| Tuesday, September 13 |
| » Defeated Padres (72-71), 4-1 | San Diego/Jack Murphy Stadium (5-3) | 74-71 | Won 2 |
| » W: Rick Reuschel (18-8) L: Ed Whitson (12-10) S: Craig Lefferts (8) | Fourth | 10 out |
| Wednesday, September 14 |
| » Defeated Padres (72-72), 6-5 | San Diego/Jack Murphy Stadium (6-3) | 75-71 | Won 3 |
| » W: Don Robinson (7-4) L: Jimmy Jones (9-13) S: Craig Lefferts (9) | Fourth | 10 out |
| » Major-league debuts: Greg Harris (Padres) |
| Friday, September 16 |
| » Defeated Astros (78-69), 5-4 | Astrodome (5-2) | 76-71 | Won 4 |
| » W: Atlee Hammaker (8-8) L: Bob Knepper (13-5) S: Craig Lefferts (10) | Fourth | 9 out |
| Saturday, September 17 |
| » Defeated Astros (78-70), 4-2 | Astrodome (6-2) | 77-71 | Won 5 |
| » W: Rick Reuschel (19-8) L: Jim Deshaies (10-13) | Fourth | 9 out |
| Sunday, September 18 |
|