| Thursday, January 10 |
| Former Giant Hughie Critz dies in Greenwood, MS at the age of 80. |
| Thursday, February 7 |
| Future Giant Brad Hennessey is born in Toledo, OH. |
| Thursday, April 10 |
| » Lost to Padres (1-0), 6-4 | San Diego/Jack Murphy Stadium (0-1) | 0-1 | |
| » W: Randy Jones (1-0) L: Bob Knepper (0-1) S: Bob Shirley (1) | Second | 1 out |
| Friday, April 11 |
| » Lost to Padres (2-0), 5-3 | San Diego/Jack Murphy Stadium (0-2) | 0-2 | Lost 2 |
| » W: Rollie Fingers (1-0) L: Gary Lavelle (0-1) | Second | 2 out |
| Saturday, April 12 |
| » Lost to Padres (3-0), 4-2 | San Diego/Jack Murphy Stadium (0-3) | 0-3 | Lost 3 |
| » W: John Curtis (1-0) L: John Montefusco (0-1) S: Bob Shirley (2) | Fourth | 3 out |
| Sunday, April 13 |
| » Defeated Padres (3-1), 3-1 | San Diego/Jack Murphy Stadium (1-3) | 1-3 | |
| » W: Vida Blue (1-0) L: Eric Rasmussen (0-1) S: Gary Lavelle (1) | Third | 3 out |
| Monday, April 14 |
| » Lost to Reds (5-0), 6-5 | Riverfront Stadium (0-1) | 1-4 | |
| » W: Dave Tomlin (1-0) L: Gary Lavelle (0-2) | Third | 4 out |
| Tuesday, April 15 |
| » Lost to Reds (6-0), 8-3 | Riverfront Stadium (0-2) | 1-5 | Lost 2 |
| » W: Tom Seaver (1-0) L: Ed Whitson (0-1) S: Tom Hume (1) | Third | 5 out |
| Wednesday, April 16 |
| » Lost to Reds (7-0), 5-3 | Riverfront Stadium (0-3) | 1-6 | Lost 3 |
| » W: Mike LaCoss (2-0) L: John Montefusco (0-2) | Fifth | 6 out |
| Thursday, April 17 |
| » Defeated Padres (5-3), 7-3 | Candlestick Park (1-0) | 2-6 | |
| » W: Vida Blue (2-0) L: Eric Rasmussen (0-2) | Fifth | 6 out |
| Friday, April 18 |
| » Defeated Padres (5-4), 5-2 | Candlestick Park (2-0) | 3-6 | Won 2 |
| » W: Bob Knepper (1-1) L: Randy Jones (1-1) | Fourth | 5 out |
| Saturday, April 19 |
| » Lost to Padres (6-4), 3-0 | Candlestick Park (2-1) | 3-7 | |
| » W: Gary Lucas (1-0) L: Ed Whitson (0-2) S: Rollie Fingers (1) | Fourth | 6 out |
| Sunday, April 20 |
| » Defeated Padres (6-5), 5-1 | Candlestick Park (3-1) | 4-7 | |
| » W: John Montefusco (1-2) L: Rick Wise (1-1) | Fourth | 6 out |
| Monday, April 21 |
| » Lost to Dodgers (5-7), 4-3 | Dodger Stadium (0-1) | 4-8 | |
| » W: Burt Hooton (2-1) L: Vida Blue (2-1) S: Steve Howe (1) | Fifth | 7 out |
| Tuesday, April 22 |
| » Lost to Dodgers (6-7), 6-0 | Dodger Stadium (0-2) | 4-9 | Lost 2 |
| » W: Don Sutton (1-0) L: Bob Knepper (1-2) | Fifth | 7 out |
| Wednesday, April 23 |
| » Lost to Dodgers (7-7), 4-0 | Dodger Stadium (0-3) | 4-10 | Lost 3 |
| » W: Dave Goltz (1-2) L: Ed Whitson (0-3) | Fifth | 8 out |
| Thursday, April 24 |
| » Lost to Dodgers (8-7), 5-2 | Dodger Stadium (0-4) | 4-11 | Lost 4 |
| » W: Jerry Reuss (3-0) L: Gary Lavelle (0-3) | Sixth | 8½ out |
| Friday, April 25 |
| » Defeated Reds (12-3), 4-3 | Candlestick Park (4-1) | 5-11 | |
| » W: Greg Minton (1-0) L: Doug Bair (0-1) | Sixth | 7½ out |
| Saturday, April 26 |
| » Defeated Reds (12-4), 3-1 | Candlestick Park (5-1) | 6-11 | Won 2 |
| » W: Bob Knepper (2-2) L: Mike LaCoss (3-1) | Fifth | 6½ out |
| Sunday, April 27 |
| » Lost to Reds (13-4), 3-1 | Candlestick Park (5-2) | 6-12 | |
| » W: Frank Pastore (3-1) L: Ed Whitson (0-4) | Sixth | 7½ out |
| Tuesday, April 29 |
| » Lost to Dodgers (12-7), 5-0 | Candlestick Park (5-3) | 6-13 | Lost 2 |
| » W: Dave Goltz (2-2) L: John Montefusco (1-3) | Sixth | 7½ out |
| Wednesday, April 30 |
| » Lost to Dodgers (13-7), 4-3 | Candlestick Park (5-4) | 6-14 | Lost 3 |
| » W: Bob Welch (1-1) L: Greg Minton (1-1) S: Steve Howe (3) | Sixth | 8 out |
| Friday, May 2 |
| » Lost to Expos (7-11), 4-3 | Stade Olympique (0-1) | 6-15 | Lost 4 |
| » W: Stan Bahnsen (1-1) L: Gary Lavelle (0-4) | Fifth | 8½ out |
| Saturday, May 3 |
| » Defeated Expos (7-12), 3-2 | Stade Olympique (1-1) | 7-15 | |
| » W: Randy Moffitt (1-0) L: Elias Sosa (2-2) S: Al Holland (1) | Fifth | 8½ out |
| Sunday, May 4 |
| » Defeated Expos (7-13), 8-4 | Stade Olympique (2-1) | 8-15 | Won 2 |
| » W: John Montefusco (2-3) L: Steve Rogers (2-3) S: Greg Minton (1) | Sixth | 9 out |
| » Lost to Expos (8-13), 6-4 | Stade Olympique (2-2) | 8-16 | |
| » W: Stan Bahnsen (2-1) L: Randy Moffitt (1-1) S: Elias Sosa (1) | Sixth | 9 out |
| Monday, May 5 |
| » Lost to Cardinals (10-12), 9-5 | Busch Stadium II (0-1) | 8-17 | Lost 2 |
| » W: Pete Vuckovich (5-1) L: Vida Blue (2-2) S: Jim Kaat (2) | Sixth | 9 out |
| Tuesday, May 6 |
| » Lost to Cardinals (11-12), 10-7 | Busch Stadium II (0-2) | 8-18 | Lost 3 |
| » W: Donnie Moore (1-0) L: Bob Knepper (2-3) S: Pedro Borbon (1) | Sixth | 10 out |
| Wednesday, May 7 |
| » Lost to Cardinals (12-12), 12-2 | Busch Stadium II (0-3) | 8-19 | Lost 4 |
| » W: Bob Forsch (2-1) L: Ed Whitson (0-5) | Sixth | 10 out |
| Friday, May 9 |
| » Defeated Cubs (12-11), 6-3 | Wrigley Field (1-0) | 9-19 | |
| » W: Vida Blue (3-2) L: Dennis Lamp (2-3) | Sixth | 9 out |
| Saturday, May 10 |
| » Lost to Cubs (13-11), 15-9 | Wrigley Field (1-1) | 9-20 | |
| » W: Lynn McGlothen (1-0) L: Bob Knepper (2-4) | Sixth | 10 out |
| Sunday, May 11 |
| » Defeated Cubs (13-12), 3-0 | Wrigley Field (2-1) | 10-20 | |
| » W: Ed Whitson (1-5) L: Mike Krukow (3-2) | Sixth | 9 out |
| Tuesday, May 13 |
| » Defeated Pirates (17-9), 5-0 | Candlestick Park (6-4) | 11-20 | Won 2 |
| » W: Vida Blue (4-2) L: Bert Blyleven (0-3) | Sixth | 9 out |
| Wednesday, May 14 |
| » Lost to Pirates (18-9), 3-2 | Candlestick Park (6-5) | 11-21 | |
| » W: Jim Bibby (5-0) L: Bob Knepper (2-5) S: Kent Tekulve (4) | Sixth | 9 out |
| Thursday, May 15 |
| » Lost to Pirates (19-9), 3-2 | Candlestick Park (6-6) | 11-22 | Lost 2 |
| » W: Enrique Romo (1-0) L: Tom Griffin (0-1) | Sixth | 9½ out |
| Friday, May 16 |
| » Defeated Cardinals (14-17), 4-3 | Candlestick Park (7-6) | 12-22 | |
| » W: Al Holland (1-0) L: Bob Forsch (2-3) | Sixth | 8½ out |
| Former Giant Cap Peterson dies in Tacoma, WA at the age of 38. |
| Saturday, May 17 |
| » Defeated Cardinals (14-18), 4-2 | Candlestick Park (8-6) | 13-22 | Won 2 |
| » W: Vida Blue (5-2) L: Bob Sykes (1-4) S: Gary Lavelle (2) | Sixth | 8 out |
| Sunday, May 18 |
| » Defeated Cardinals (14-19), 6-5 | Candlestick Park (9-6) | 14-22 | Won 3 |
| » W: Bob Knepper (3-5) L: Don Hood (1-2) S: Al Holland (2) | Fifth | 8 out |
| Tuesday, May 20 |
| » Defeated Cubs (15-17), 2-0 | Candlestick Park (10-6) | 15-22 | Won 4 |
| » W: Ed Whitson (2-5) L: Mike Krukow (3-4) | Fifth | 8½ out |
| Wednesday, May 21 |
| » Defeated Cubs (15-18), 4-1 | Candlestick Park (11-6) | 16-22 | Won 5 |
| » W: Vida Blue (6-2) L: Rick Reuschel (3-4) | Fifth | 8½ out |
| Friday, May 23 |
| » Lost to Pirates (22-13), 5-4 | Three Rivers Stadium (0-1) | 16-23 | |
| » W: Grant Jackson (4-1) L: Al Holland (1-1) | Fifth | 8½ out |
| Saturday, May 24 |
| » Defeated Pirates (22-14), 10-9 | Three Rivers Stadium (1-1) | 17-23 | |
| » W: Tom Griffin (1-1) L: Rod Scurry (0-1) | Fifth | 8½ out |
| Sunday, May 25 |
| » Defeated Pirates (22-15), 5-2 | Three Rivers Stadium (2-1) | 18-23 | Won 2 |
| » W: Vida Blue (7-2) L: John Candelaria (2-3) | Fifth | 7½ out |
| Monday, May 26 |
| » Lost to Braves (14-24), 2-1 | Atlanta-Fulton County Stadium (0-1) | 18-24 | |
| » W: Tommy Boggs (1-1) L: Greg Minton (1-2) S: Larry Bradford (2) | Fifth | 8 out |
| Tuesday, May 27 |
| » Lost to Braves (15-24), 6-3 | Atlanta-Fulton County Stadium (0-2) | 18-25 | Lost 2 |
| » W: Larry McWilliams (3-4) L: Bob Knepper (3-6) S: Gene Garber (1) | Fifth | 8 out |
| Wednesday, May 28 |
| » Lost to Braves (16-24), 3-2 | Atlanta-Fulton County Stadium (0-3) | 18-26 | Lost 3 |
| » W: Al Hrabosky (3-1) L: Gary Lavelle (0-5) | Fifth | 8½ out |
| Friday, May 30 |
| » Defeated Astros (24-19), 3-2 | Candlestick Park (12-6) | 19-26 | |
| » W: Vida Blue (8-2) L: Ken Forsch (5-4) | Fifth | 9 out |
| Saturday, May 31 |
| » Lost to Astros (25-19), 5-0 | Candlestick Park (12-7) | 19-27 | |
| » W: J.R. Richard (6-3) L: John Montefusco (2-4) | Fifth | 9 out |
| Sunday, June 1 |
| » Defeated Astros (25-20), 6-2 | Candlestick Park (13-7) | 20-27 | |
| » W: Bob Knepper (4-6) L: Joe Niekro (5-4) | Fifth | 8 out |
| Former Giant Rube Marquard dies in Baltimore, MD at the age of 94. |
| Monday, June 2 |
| » Lost to Braves (19-26), 4-2 | Candlestick Park (13-8) | 20-28 | |
| » W: Phil Niekro (4-7) L: Ed Whitson (2-6) | Sixth | 9 out |
| Tuesday, June 3 |
| » Defeated Braves (19-27), 3-2 | Candlestick Park (14-8) | 21-28 | |
| » W: Greg Minton (2-2) L: Larry Bradford (1-2) | Fifth | 9 out |
| Wednesday, June 4 |
| » Lost to Braves (20-27), 7-2 | Candlestick Park (14-9) | 21-29 | |
| » W: Rick Matula (4-4) L: John Montefusco (2-5) | Sixth | 9 out |
| Friday, June 6 |
| » Lost to Astros (28-21), 2-0 | Astrodome (0-1) | 21-30 | Lost 2 |
| » W: J.R. Richard (7-3) L: Bob Knepper (4-7) | Sixth | 10 out |
| Saturday, June 7 |
| » Lost to Astros (29-21), 3-0 | Astrodome (0-2) | 21-31 | Lost 3 |
| » W: Joe Niekro (6-4) L: Ed Whitson (2-7) | Sixth | 10 out |
| » Major-league debuts: Rich Murray (Giants) |
| Sunday, June 8 |
| » Lost to Astros (30-21), 5-4 | Astrodome (0-3) | 21-32 | Lost 4 |
| » W: Joe Sambito (2-0) L: Greg Minton (2-3) | Sixth | 11 out |
| Monday, June 9 |
| » Defeated Phillies (26-23), 3-1 | Veteran's Stadium (1-0) | 22-32 | |
| » W: Allen Ripley (1-0) L: Dickie Noles (0-3) S: Greg Minton (2) | Sixth | 10½ out |
| Former Giant Odell Hale dies in ElDorado, AR at the age of 72. |
| Tuesday, June 10 |
| » Lost to Phillies (27-23), 4-3 | Veteran's Stadium (1-1) | 22-33 | |
| » W: Kevin Saucier (3-0) L: Bob Knepper (4-8) S: Ron Reed (3) | Sixth | 11 out |
| Wednesday, June 11 |
| » Defeated Phillies (27-24), 7-4 | Veteran's Stadium (2-1) | 23-33 | |
| » W: Ed Whitson (3-7) L: Randy Lerch (2-8) S: Greg Minton (3) | Sixth | 11 out |
| Thursday, June 12 |
| » Major-league debuts: Charlie Lea (Expos) |
| Friday, June 13 |
| » Defeated Mets (26-28), 3-1 | Shea Stadium (1-0) | 24-33 | Won 2 |
| » W: Vida Blue (9-2) L: Ray Burris (4-5) | Fifth | 10 out |
| Saturday, June 14 |
| » Lost to Mets (27-28), 7-6 | Shea Stadium (1-1) | 24-34 | |
| » W: Jeff Reardon (4-2) L: Allen Ripley (1-1) | Sixth | 11 out |
| Sunday, June 15 |
| » Defeated Mets (27-29), 3-0 | Shea Stadium (2-1) | 25-34 | |
| » W: Bob Knepper (5-8) L: Pat Zachry (1-3) | Fourth | 10 out |
| Monday, June 16 |
| » Defeated Expos (33-23), 5-1 | Candlestick Park (15-9) | 26-34 | Won 2 |
| » W: Ed Whitson (4-7) L: Charlie Lea (1-1) | Fourth | 10 out |
| Tuesday, June 17 |
| » Lost to Expos (34-23), 2-1 | Candlestick Park (15-10) | 26-35 | |
| » W: David Palmer (4-1) L: Vida Blue (9-3) S: Woodie Fryman (9) | Fifth | 11 out |
| Wednesday, June 18 |
| » Defeated Mets (27-32), 8-5 | Candlestick Park (16-10) | 27-35 | |
| » W: John Montefusco (3-5) L: Ray Burris (4-6) S: Greg Minton (4) | Fourth | 11 out |
| Thursday, June 19 |
| » Defeated Mets (27-33), 4-3 | Candlestick Park (17-10) | 28-35 | Won 2 |
| » W: Gary Lavelle (1-5) L: Neil Allen (3-5) | Fourth | 11 out |
| Friday, June 20 |
| » Defeated Phillies (33-26), 5-1 | Candlestick Park (18-10) | 29-35 | Won 3 |
| » W: Allen Ripley (2-1) L: Dan Larson (0-2) | Fourth | 11 out |
| Saturday, June 21 |
| » Defeated Phillies (33-27), 9-3 | Candlestick Park (19-10) | 30-35 | Won 4 |
| » W: Ed Whitson (5-7) L: Randy Lerch (2-9) | Fourth | 11 out |
| Sunday, June 22 |
| » Lost to Phillies (34-27), 4-3 | Candlestick Park (19-11) | 30-36 | |
| » W: Steve Carlton (13-2) L: Vida Blue (9-4) | Fourth | 11 out |
| Tuesday, June 24 |
| » Lost to Padres (30-38), 5-3 | San Diego/Jack Murphy Stadium (1-4) | 30-37 | Lost 2 |
| » W: John D'Acquisto (1-1) L: Bob Knepper (5-9) | Fourth | 11½ out |
| Wednesday, June 25 |
| » Lost to Padres (31-38), 7-3 | San Diego/Jack Murphy Stadium (1-5) | 30-38 | Lost 3 |
| » W: Juan Eichelberger (1-0) L: Allen Ripley (2-2) S: Rollie Fingers (9) | Fifth | 11½ out |
| Thursday, June 26 |
| » Defeated Padres (31-39), 2-1 | San Diego/Jack Murphy Stadium (2-5) | 31-38 | |
| » W: Ed Whitson (6-7) L: Steve Mura (1-3) S: Greg Minton (5) | Fourth | 11 out |
| Friday, June 27 |
| » Lost to Dodgers (41-29), 8-0 | Candlestick Park (19-12) | 31-39 | |
| » W: Jerry Reuss (9-1) L: Vida Blue (9-5) | Fourth | 12 out |
| Saturday, June 28 |
| » Defeated Dodgers (41-30), 4-3 | Candlestick Park (20-12) | 32-39 | |
| » W: Tom Griffin (2-1) L: Rick Sutcliffe (2-5) | Fourth | 11 out |
| Sunday, June 29 |
| » Defeated Dodgers (41-31), 4-3 | Candlestick Park (21-12) | 33-39 | Won 2 |
| » W: Bob Knepper (6-9) L: Bobby Castillo (2-4) | Fourth | 11½ out |
| » Lost to Dodgers (42-31), 3-0 | Candlestick Park (21-13) | 33-40 | |
| » W: Burt Hooton (7-3) L: Allen Ripley (2-3) | Fourth | 11½ out |
| Monday, June 30 |
| » Defeated Reds (37-35), 8-4 | Candlestick Park (22-13) | 34-40 | |
| » W: Bill Bordley (1-0) L: Tom Seaver (3-5) S: Gary Lavelle (3) | Fourth | 10½ out |
| » Major-league debuts: Bill Bordley (Giants) |
| Future Giant Todd Linden is born in Edmonds, WA. |
| Tuesday, July 1 |
| » Defeated Reds (37-36), 4-1 | Candlestick Park (23-13) | 35-40 | Won 2 |
| » W: Ed Whitson (7-7) L: Paul Moskau (5-2) | Fourth | 9½ out |
| Wednesday, July 2 |
| » Lost to Reds (38-36), 6-2 | Candlestick Park (23-14) | 35-41 | |
| » W: Frank Pastore (10-4) L: John Montefusco (3-6) | Fifth | 9½ out |
| Thursday, July 3 |
| » Defeated Reds (38-37), 4-3 | Candlestick Park (24-14) | 36-41 | |
| » W: Bob Knepper (7-9) L: Joe Price (1-1) S: Greg Minton (6) | Fourth | 9½ out |
| Friday, July 4 |
| » Lost to Dodgers (45-33), 4-0 | Dodger Stadium (0-5) | 36-42 | |
| » W: Don Sutton (6-2) L: Allen Ripley (2-4) | Fifth | 9½ out |
| Saturday, July 5 |
| » Lost to Dodgers (46-33), 3-2 | Dodger Stadium (0-6) | 36-43 | Lost 2 |
| » W: Bob Welch (9-3) L: Ed Whitson (7-8) S: Bobby Castillo (3) | Fifth | 10 out |
| Sunday, July 6 |
| » Defeated Dodgers (46-34), 7-4 | Dodger Stadium (1-6) | 37-43 | |
| » W: Al Holland (2-1) L: Steve Howe (2-4) | Fifth | 9 out |
| Thursday, July 10 |
| » Defeated Padres (34-48), 9-2 | Candlestick Park (25-14) | 38-43 | Won 2 |
| » W: Bob Knepper (8-9) L: Randy Jones (4-7) | Fifth | 9 out |
| » Major-league debuts: Joe Pettini (Giants) |
| Future Giant Jesse Foppert is born in Reading, PA. |
| Friday, July 11 |
| » Defeated Padres (34-49), 7-3 | Candlestick Park (26-14) | 39-43 | Won 3 |
| » W: Ed Whitson (8-8) L: John Curtis (3-7) | Fourth | 9 out |
| Saturday, July 12 |
| » Defeated Reds (43-39), 7-4 | Riverfront Stadium (1-3) | 40-43 | Won 4 |
| » W: Gary Lavelle (2-5) L: Doug Bair (0-4) S: Greg Minton (7) | Fourth | 7½ out |
| » Defeated Reds (43-40), 10-7 | Riverfront Stadium (2-3) | 41-43 | Won 5 |
| » W: Bill Bordley (2-0) L: Mike LaCoss (5-8) S: Greg Minton (8) | Fourth | 7½ out |
| Sunday, July 13 |
| » Defeated Reds (43-41), 2-0 | Riverfront Stadium (3-3) | 42-43 | Won 6 |
| » W: Allen Ripley (3-4) L: Joe Price (1-2) S: Al Holland (3) | Fourth | 7 out |
| Monday, July 14 |
| » Defeated Reds (43-42), 5-3 | Riverfront Stadium (4-3) | 43-43 | Won 7 |
| » W: Alan Hargesheimer (1-0) L: Charlie Leibrandt (8-5) S: Gary Lavelle (4) | Fourth | 6 out |
| » Major-league debuts: Alan Hargesheimer (Giants) |
| Tuesday, July 15 |
| » Lost to Pirates (46-39), 5-2 | Three Rivers Stadium (2-2) | 43-44 | |
| » W: John Candelaria (6-8) L: Bob Knepper (8-10) S: Kent Tekulve (12) | Fourth | 7 out |
| Wednesday, July 16 |
| » Lost to Pirates (47-39), 3-1 | Three Rivers Stadium (2-3) | 43-45 | Lost 2 |
| » W: Bert Blyleven (4-7) L: Ed Whitson (8-9) S: Grant Jackson (5) | Fourth | 7 out |
| Thursday, July 17 |
| » Lost to Pirates (48-39), 3-2 | Three Rivers Stadium (2-4) | 43-46 | Lost 3 |
| » W: Kent Tekulve (6-5) L: Al Holland (2-2) | Fourth | 7½ out |
| Future Giant Justin Knoedler is born in Springfield, IL. |
| Friday, July 18 |
| » Defeated Cardinals (39-50), 8-7 | Busch Stadium II (1-3) | 44-46 | |
| » W: Al Holland (3-2) L: Kim Seaman (2-1) | Fourth | 6½ out |
| Saturday, July 19 |
| » Defeated Cardinals (39-51), 7-4 | Busch Stadium II (2-3) | 45-46 | Won 2 |
| » W: Alan Hargesheimer (2-0) L: Bob Sykes (3-8) S: Gary Lavelle (5) | Third | 5½ out |
| Sunday, July 20 |
| » Lost to Cardinals (40-51), 2-1 | Busch Stadium II (2-4) | 45-47 | |
| » W: Bob Forsch (7-6) L: Bob Knepper (8-11) | Fourth | 6½ out |
| Tuesday, July 22 |
| » Defeated Cubs (37-51), 2-0 | Wrigley Field (3-1) | 46-47 | |
| » W: Gary Lavelle (3-5) L: Bill Caudill (1-2) | Fourth | 7½ out |
| » Lost to Cubs (38-51), 3-1 | Wrigley Field (3-2) | 46-48 | |
| » W: Dennis Lamp (9-8) L: Bill Bordley (2-1) | Fourth | 7½ out |
| Wednesday, July 23 |
| » Defeated Cubs (38-52), 14-6 | Wrigley Field (4-2) | 47-48 | |
| » W: Allen Ripley (4-4) L: Doug Capilla (2-3) | Fourth | 6½ out |
| Friday, July 25 |
| » Lost to Pirates (54-41), 5-1 | Candlestick Park (26-15) | 47-49 | |
| » W: John Candelaria (7-9) L: Bob Knepper (8-12) | Fourth | 7½ out |
| Saturday, July 26 |
| » Defeated Pirates (54-42), 4-3 | Candlestick Park (27-15) | 48-49 | |
| » W: Greg Minton (3-3) L: Grant Jackson (8-3) | Fourth | 6½ out |
| Sunday, July 27 |
| » Lost to Pirates (55-42), 6-4 | Candlestick Park (27-16) | 48-50 | |
| » W: Jim Bibby (13-1) L: Bill Bordley (2-2) S: Kent Tekulve (14) | Fourth | 7½ out |
| Tuesday, July 29 |
| » Defeated Cardinals (44-54), 4-1 | Candlestick Park (28-16) | 49-50 | |
| » W: Allen Ripley (5-4) L: Silvio Martinez (3-4) S: Greg Minton (9) | Fourth | 7 out |
| Wednesday, July 30 |
| » Lost to Cardinals (45-54), 4-0 | Candlestick Park (28-17) | 49-51 | |
| » W: John Fulgham (3-3) L: Bob Knepper (8-13) | Fourth | 7 out |
| Thursday, July 31 |
| » Defeated Cardinals (45-55), 6-4 | Candlestick Park (29-17) | 50-51 | |
| » W: Gary Lavelle (4-5) L: John Urrea (3-1) S: Al Holland (4) | Fourth | 6½ out |
| Friday, August 1 |
| » Lost to Cubs (40-57), 5-3 | Candlestick Park (29-18) | 50-52 | |
| » W: Rick Reuschel (7-9) L: Bill Bordley (2-3) S: Bruce Sutter (22) | Fourth | 6½ out |
| Saturday, August 2 |
| » Defeated Cubs (40-58), 8-5 | Candlestick Park (30-18) | 51-52 | |
| » W: Tom Griffin (3-1) L: Dick Tidrow (3-2) S: Greg Minton (10) | Fourth | 6 out |
| Sunday, August 3 |
| » Lost to Cubs (41-58), 3-2 | Candlestick Park (30-19) | 51-53 | |
| » W: Mike Krukow (7-10) L: Allen Ripley (5-5) | Fourth | 7 out |
| » Lost to Cubs (42-58), 3-2 | Candlestick Park (30-20) | 51-54 | Lost 2 |
| » W: Dick Tidrow (4-2) L: Bob Knepper (8-14) S: Bruce Sutter (23) | Fourth | 7 out |
| Former Giant Bill Hubbell dies in Lakewood, CO at the age of 84. |
| Monday, August 4 |
| » Lost to Astros (58-46), 4-2 | Astrodome (0-4) | 51-55 | Lost 3 |
| » W: Nolan Ryan (6-8) L: Alan Hargesheimer (2-1) S: Joe Sambito (11) | Fourth | 8 out |
| Tuesday, August 5 |
| » Defeated Astros (58-47), 9-3 | Astrodome (1-4) | 52-55 | |
| » W: Gary Lavelle (5-5) L: Gordie Pladson (0-3) | Fourth | 7 out |
| Wednesday, August 6 |
| » Lost to Astros (59-47), 1-0 | Astrodome (1-5) | 52-56 | |
| » W: Ken Forsch (9-9) L: Vida Blue (9-6) | Fourth | 8 out |
| Friday, August 8 |
| » Lost to Braves (49-59), 7-3 | Atlanta-Fulton County Stadium (0-4) | 52-57 | Lost 2 |
| » W: Larry McWilliams (8-8) L: Greg Minton (3-4) | Fourth | 7½ out |
| Saturday, August 9 |
| » Defeated Braves (49-60), 5-4 | Atlanta-Fulton County Stadium (1-4) | 53-57 | |
| » W: Al Holland (4-2) L: Tommy Boggs (5-8) S: Greg Minton (11) | Fourth | 7½ out |
| Sunday, August 10 |
| » Lost to Braves (50-60), 3-1 | Atlanta-Fulton County Stadium (1-5) | 53-58 | |
| » W: Phil Niekro (9-14) L: Alan Hargesheimer (2-2) S: Rick Camp (7) | Fourth | 8 out |
| Monday, August 11 |
| » Defeated Astros (60-51), 5-4 | Candlestick Park (31-20) | 54-58 | |
| » W: Vida Blue (10-6) L: Ken Forsch (9-10) S: Greg Minton (12) | Fourth | 7 out |
| Tuesday, August 12 |
| » Defeated Astros (60-52), 2-0 | Candlestick Park (32-20) | 55-58 | Won 2 |
| » W: Allen Ripley (6-5) L: Joe Niekro (11-11) S: Gary Lavelle (7) | Fourth | 6 out |
| Wednesday, August 13 |
| » Defeated Astros (60-53), 6-5 | Candlestick Park (33-20) | 56-58 | Won 3 |
| » W: Mike Rowland (1-0) L: Dave Smith (2-5) | Fourth | 5½ out |
| Thursday, August 14 |
| » Defeated Braves (53-61), 5-1 | Candlestick Park (34-20) | 57-58 | Won 4 |
| » W: Alan Hargesheimer (3-2) L: Larry McWilliams (8-9) S: Greg Minton (13) | Third | 5 out |
| Friday, August 15 |
| » Lost to Braves (54-61), 8-2 | Candlestick Park (34-21) | 57-59 | |
| » W: Gene Garber (4-5) L: Gary Lavelle (5-6) | Third | 5½ out |
| Saturday, August 16 |
| » Defeated Braves (54-62), 2-1 | Candlestick Park (35-21) | 58-59 | |
| » W: Vida Blue (11-6) L: Rick Matula (7-11) | Fourth | 5 out |
| Sunday, August 17 |
| » Lost to Braves (55-62), 8-2 | Candlestick Park (35-22) | 58-60 | |
| » W: Doyle Alexander (11-6) L: Allen Ripley (6-6) | Fourth | 6½ out |
| Tuesday, August 19 |
| » Defeated Mets (56-63), 5-4 | Shea Stadium (3-1) | 59-60 | |
| » W: Bob Knepper (9-14) L: Jeff Reardon (7-7) S: Greg Minton (14) | Fourth | 6½ out |
| Wednesday, August 20 |
| » Defeated Mets (56-64), 2-1 | Shea Stadium (4-1) | 60-60 | Won 2 |
| » W: Alan Hargesheimer (4-2) L: Mark Bomback (9-5) S: Greg Minton (15) | Fourth | 6½ out |
| Thursday, August 21 |
| » Lost to Mets (57-64), 5-1 | Shea Stadium (4-2) | 60-61 | |
| » W: Pete Falcone (6-7) L: Vida Blue (11-7) | Fourth | 7½ out |
| Friday, August 22 |
| » Defeated Phillies (64-55), 4-3 | Veteran's Stadium (3-1) | 61-61 | |
| » W: Al Holland (5-2) L: Steve Carlton (19-7) | Fourth | 7½ out |
| Saturday, August 23 |
| » Defeated Phillies (64-56), 6-2 | Veteran's Stadium (4-1) | 62-61 | Won 2 |
| » W: Allen Ripley (7-6) L: Larry Christenson (4-1) | Fourth | 7½ out |
| Sunday, August 24 |
| » Lost to Phillies (65-56), 7-1 | Veteran's Stadium (4-2) | 62-62 | |
| » W: Dick Ruthven (12-8) L: Bob Knepper (9-15) | Fourth | 8½ out |
| Future Giant Kevin Correia is born in San Diego, CA. |
| Monday, August 25 |
| » Lost to Expos (69-56), 3-1 | Stade Olympique (2-3) | 62-63 | Lost 2 |
| » W: Steve Rogers (12-9) L: Alan Hargesheimer (4-3) | Fourth | 8½ out |
| Wednesday, August 27 |
| » Defeated Expos (69-57), 1-0 | Stade Olympique (3-3) | 63-63 | |
| » W: Ed Whitson (9-9) L: Scott Sanderson (12-8) S: Greg Minton (16) | Fourth | 8 out |
| Friday, August 29 |
| » Defeated Mets (58-69), 1-0 | Candlestick Park (36-22) | 64-63 | Won 2 |
| » W: Vida Blue (12-7) L: Pat Zachry (6-8) | Fourth | 8½ out |
| Saturday, August 30 |
| » Lost to Mets (59-69), 9-5 | Candlestick Park (36-23) | 64-64 | |
| » W: Tom Hausman (6-4) L: Allen Ripley (7-7) S: Jeff Reardon (5) | Fourth | 9½ out |
| Sunday, August 31 |
| » Defeated Mets (59-70), 11-4 | Candlestick Park (37-23) | 65-64 | |
| » W: Gary Lavelle (6-6) L: Pete Falcone (6-9) S: Al Holland (5) | Fourth | 8 out |
| » Defeated Mets (59-71), 9-4 | Candlestick Park (38-23) | 66-64 | Won 2 |
| » W: John Montefusco (4-6) L: Dyar Miller (0-1) S: Greg Minton (17) | Fourth | 8 out |
| » Major-league debuts: Ed Lynch (Mets) |
| Monday, September 1 |
| » Lost to Phillies (69-60), 6-4 | Candlestick Park (38-24) | 66-65 | |
| » W: Steve Carlton (21-7) L: Greg Minton (3-5) | Fourth | 8½ out |
| Tuesday, September 2 |
| » Lost to Phillies (70-60), 2-1 | Candlestick Park (38-25) | 66-66 | Lost 2 |
| » W: Ron Reed (7-4) L: Al Holland (5-3) | Fourth | 9 out |
| Wednesday, September 3 |
| » Lost to Phillies (71-60), 4-3 | Candlestick Park (38-26) | 66-67 | Lost 3 |
| » W: Dick Ruthven (14-8) L: Allen Ripley (7-8) S: Tug McGraw (16) | Fifth | 10 out |
| Thursday, September 4 |
| » Lost to Expos (72-62), 4-0 | Candlestick Park (38-27) | 66-68 | Lost 4 |
| » W: Bill Gullickson (7-4) L: Alan Hargesheimer (4-4) | Fifth | 10 out |
| » Major-league debuts: Fred Breining (Giants) |
| Friday, September 5 |
| » Lost to Expos (73-62), 8-0 | Candlestick Park (38-28) | 66-69 | Lost 5 |
| » W: Steve Rogers (13-10) L: John Montefusco (4-7) | Fifth | 11 out |
| Saturday, September 6 |
| » Lost to Expos (74-62), 9-0 | Candlestick Park (38-29) | 66-70 | Lost 6 |
| » W: Scott Sanderson (14-8) L: Ed Whitson (9-10) | Fifth | 12 out |
| » Major-league debuts: Tim Wallach (Expos) |
| Sunday, September 7 |
| » Defeated Expos (74-63), 6-3 | Candlestick Park (39-29) | 67-70 | |
| » W: Vida Blue (13-7) L: John D'Acquisto (2-5) S: Greg Minton (18) | Fifth | 12 out |
| Tuesday, September 9 |
| » Lost to Padres (61-78), 12-5 | San Diego/Jack Murphy Stadium (2-6) | 67-71 | |
| » W: Steve Mura (6-7) L: Allen Ripley (7-9) | Fifth | 12 out |
| Wednesday, September 10 |
| » Lost to Padres (62-78), 4-2 | San Diego/Jack Murphy Stadium (2-7) | 67-72 | Lost 2 |
| » W: Rollie Fingers (10-8) L: Greg Minton (3-6) S: Gary Lucas (3) | Fourth | 12 out |
| Friday, September 12 |
| » Lost to Astros (80-60), 5-3 | Astrodome (1-6) | 67-73 | Lost 3 |
| » W: Joe Niekro (16-11) L: Ed Whitson (9-11) S: Dave Smith (7) | Fourth | 13 out |
| Saturday, September 13 |
| » Lost to Astros (81-60), 3-2 | Astrodome (1-7) | 67-74 | Lost 4 |
| » W: Ken Forsch (11-12) L: Vida Blue (13-8) | Fourth | 14 out |
| Sunday, September 14 |
| » Lost to Astros (82-60), 6-4 | Astrodome (1-8) | 67-75 | Lost 5 |
| » W: Joaquin Andujar (3-5) L: John Montefusco (4-8) S: Joe Sambito (15) | Fourth | 15 out |
| Monday, September 15 |
| » Lost to Reds (78-66), 6-2 | Riverfront Stadium (4-4) | 67-76 | Lost 6 |
| » W: Tom Seaver (9-7) L: Bob Knepper (9-16) | Fourth | 15 out |
| Tuesday, September 16 |
| » Defeated Reds (78-67), 8-1 | Riverfront Stadium (5-4) | 68-76 | |
| » W: Ed Whitson (10-11) L: Joe Price (6-3) | Fourth | 14 out |
| Wednesday, September 17 |
| » Defeated Braves (76-69), 2-0 | Candlestick Park (40-29) | 69-76 | Won 2 |
| » W: Vida Blue (14-8) L: Larry McWilliams (9-12) | Fifth | 14 out |
| Thursday, September 18 |
| » Lost to Braves (77-69), 2-1 | Candlestick Park (40-30) | 69-77 | |
| » W: Rick Matula (11-12) L: Alan Hargesheimer (4-5) S: Rick Camp (18) | Fifth | 15 out |
| Friday, September 19 |
| » Defeated Astros (83-64), 4-3 | Candlestick Park (41-30) | 70-77 | |
| » W: Tom Griffin (4-1) L: Joaquin Andujar (3-6) S: Al Holland (6) | Fifth | 14 out |
| Saturday, September 20 |
| » Lost to Astros (84-64), 3-2 | Candlestick Park (41-31) | 70-78 | |
| » W: Dave Smith (7-5) L: Gary Lavelle (6-7) S: Joe Sambito (17) | Fourth | 14 out |
| Sunday, September 21 |
| » Lost to Astros (85-64), 5-1 | Candlestick Park (41-32) | 70-79 | Lost 2 |
| » W: Vern Ruhle (10-4) L: Vida Blue (14-9) | Fifth | 15 out |
| Monday, September 22 |
| » Defeated Reds (82-69), 7-3 | Candlestick Park (42-32) | 71-79 | |
| » W: Allen Ripley (8-9) L: Mike LaCoss (9-12) S: Gary Lavelle (8) | Fifth | 15 out |
| Tuesday, September 23 |
| » Lost to Reds (83-69), 2-1 | Candlestick Park (42-33) | 71-80 | |
| » W: Frank Pastore (12-7) L: Alan Hargesheimer (4-6) | Fifth | 15 out |
| Wednesday, September 24 |
| » Lost to Dodgers (86-66), 5-4 | Dodger Stadium (1-7) | |