| Saturday, January 28 |
| Former Cardinal Ray Harrell dies in Alexandria, LA at the age of 72. |
| Monday, April 2 |
| » Major-league debuts: Ross Jones (Mets) |
| Tuesday, April 3 |
| » Defeated Dodgers (0-1), 11-7 | Dodger Stadium (1-0) | 1-0 | |
| » W: Danny Cox (1-0) L: Fernando Valenzuela (0-1) S: Bruce Sutter (1) | First | -- |
| Thursday, April 5 |
| » Lost to Dodgers (1-1), 5-2 | Dodger Stadium (1-1) | 1-1 | |
| » W: Orel Hershiser (1-0) L: Jeff Lahti (0-1) | Second | 1 out |
| Friday, April 6 |
| » Defeated Giants (0-3), 2-0 | Candlestick Park (1-0) | 2-1 | |
| » W: Joaquin Andujar (1-0) L: Bill Laskey (0-1) | First | -- |
| Saturday, April 7 |
| » Lost to Giants (1-3), 11-0 | Candlestick Park (1-1) | 2-2 | |
| » W: Jeff Robinson (1-0) L: Dave LaPoint (0-1) | Second | 1 out |
| » Major-league debuts: Jeff Robinson (Giants) Rick Horton (Cardinals) |
| Sunday, April 8 |
| » Defeated Giants (1-4), 9-3 | Candlestick Park (2-1) | 3-2 | |
| » W: Neil Allen (1-0) L: Mark Davis (0-2) | Second | 1 out |
| Tuesday, April 10 |
| » Lost to Padres (5-1), 7-3 | San Diego/Jack Murphy Stadium (0-1) | 3-3 | |
| » W: Andy Hawkins (1-0) L: Bob Forsch (0-1) S: Dave Dravecky (1) | Third | 2 out |
| Wednesday, April 11 |
| » Lost to Padres (6-1), 7-5 | San Diego/Jack Murphy Stadium (0-2) | 3-4 | Lost 2 |
| » W: Tim Lollar (1-0) L: Joaquin Andujar (1-1) | Fourth | 3 out |
| Friday, April 13 |
| » Defeated Pirates (3-5), 4-1 | Busch Stadium II (1-0) | 4-4 | |
| » W: Dave LaPoint (1-1) L: John Candelaria (1-1) S: Bruce Sutter (2) | Fourth | 2 out |
| Saturday, April 14 |
| » Defeated Pirates (3-6), 7-5 | Busch Stadium II (2-0) | 5-4 | Won 2 |
| » W: Danny Cox (2-0) L: Rick Rhoden (1-2) S: Bruce Sutter (3) | Second | 1 out |
| Sunday, April 15 |
| » Defeated Pirates (3-7), 1-0 | Busch Stadium II (3-0) | 6-4 | Won 3 |
| » W: Dave Rucker (1-0) L: Larry McWilliams (0-2) S: Bruce Sutter (4) | Second | ½ out |
| Wednesday, April 18 |
| » Defeated Cubs (5-5), 5-0 | Wrigley Field (1-0) | 7-4 | Won 4 |
| » W: Joaquin Andujar (2-1) L: Chuck Rainey (1-2) | Second | ½ out |
| » Lost to Cubs (6-5), 6-1 | Wrigley Field (1-1) | 7-5 | |
| » W: Scott Sanderson (1-1) L: Dave LaPoint (1-2) | Second | ½ out |
| Thursday, April 19 |
| » Lost to Cubs (7-5), 6-1 | Wrigley Field (1-2) | 7-6 | Lost 2 |
| » W: Steve Trout (2-1) L: Danny Cox (2-1) | Fourth | 1½ out |
| Saturday, April 21 |
| » Lost to Expos (7-7), 6-3 | Busch Stadium II (3-1) | 7-7 | Lost 3 |
| » W: Steve Rogers (1-0) L: John Stuper (0-1) S: Jeff Reardon (3) | Fifth | 2½ out |
| » Lost to Expos (8-7), 4-0 | Busch Stadium II (3-2) | 7-8 | Lost 4 |
| » W: David Palmer (2-0) L: Bob Forsch (0-2) | Fifth | 2½ out |
| Sunday, April 22 |
| » Lost to Expos (9-7), 4-2 | Busch Stadium II (3-3) | 7-9 | Lost 5 |
| » W: Bryn Smith (4-0) L: Joaquin Andujar (2-2) S: Jeff Reardon (4) | Fifth | 3 out |
| Monday, April 23 |
| » Lost to Cubs (9-6), 6-2 | Busch Stadium II (3-4) | 7-10 | Lost 6 |
| » W: Scott Sanderson (2-1) L: Dave LaPoint (1-3) | Fifth | 3½ out |
| Tuesday, April 24 |
| » Lost to Cubs (10-6), 3-2 | Busch Stadium II (3-5) | 7-11 | Lost 7 |
| » W: Tim Stoddard (2-0) L: Bruce Sutter (0-1) S: Lee Smith (4) | Sixth | 4 out |
| Wednesday, April 25 |
| » Defeated Cubs (10-7), 7-5 | Busch Stadium II (4-5) | 8-11 | |
| » W: Jeff Lahti (1-1) L: Dick Ruthven (2-1) S: Bruce Sutter (5) | Fourth | 3½ out |
| Friday, April 27 |
| » Defeated Expos (10-9), 8-2 | Stade Olympique (1-0) | 9-11 | Won 2 |
| » W: Joaquin Andujar (3-2) L: Steve Rogers (1-1) | Fourth | 3½ out |
| Saturday, April 28 |
| » Defeated Expos (10-10), 6-1 | Stade Olympique (2-0) | 10-11 | Won 3 |
| » W: Dave LaPoint (2-3) L: Bryn Smith (4-1) S: Bruce Sutter (6) | Fourth | 2½ out |
| Sunday, April 29 |
| » Lost to Expos (11-10), 6-2 | Stade Olympique (2-1) | 10-12 | |
| » W: Charlie Lea (4-1) L: Danny Cox (2-2) | Fourth | 3 out |
| Monday, April 30 |
| » Defeated Pirates (7-13), 5-3 | Three Rivers Stadium (1-0) | 11-12 | |
| » W: Bruce Sutter (1-1) L: Lee Tunnell (0-2) | Fourth | 2½ out |
| Tuesday, May 1 |
| » Defeated Pirates (7-14), 10-5 | Three Rivers Stadium (2-0) | 12-12 | Won 2 |
| » W: Joaquin Andujar (4-2) L: Jose DeLeon (1-1) | Fourth | 2½ out |
| Wednesday, May 2 |
| » Defeated Pirates (7-15), 3-1 | Three Rivers Stadium (3-0) | 13-12 | Won 3 |
| » W: Dave LaPoint (3-3) L: Rick Rhoden (2-3) S: Bruce Sutter (7) | Fourth | 2½ out |
| Friday, May 4 |
| » Lost to Giants (9-17), 2-0 | Busch Stadium II (4-6) | 13-13 | |
| » W: Jeff Robinson (3-3) L: Danny Cox (2-3) S: Gary Lavelle (4) | Fifth | 3½ out |
| Saturday, May 5 |
| » Lost to Giants (10-17), 7-0 | Busch Stadium II (4-7) | 13-14 | Lost 2 |
| » W: Frank Williams (1-0) L: Bob Forsch (0-3) | Fifth | 3½ out |
| Sunday, May 6 |
| » Lost to Giants (11-17), 3-2 | Busch Stadium II (4-8) | 13-15 | Lost 3 |
| » W: Bill Laskey (1-3) L: Joaquin Andujar (4-3) S: Gary Lavelle (5) | Fifth | 3½ out |
| Monday, May 7 |
| » Defeated Dodgers (19-12), 5-1 | Busch Stadium II (5-8) | 14-15 | |
| » W: Dave LaPoint (4-3) L: Rick Honeycutt (4-1) S: Neil Allen (1) | Fourth | 2½ out |
| Tuesday, May 8 |
| » Lost to Dodgers (20-12), 2-1 | Busch Stadium II (5-9) | 14-16 | |
| » W: Jerry Reuss (2-1) L: Danny Cox (2-4) S: Tom Niedenfuer (5) | Fifth | 3½ out |
| Wednesday, May 9 |
| » Lost to Padres (18-11), 3-2 | Busch Stadium II (5-10) | 14-17 | Lost 2 |
| » W: Mark Thurmond (2-2) L: John Stuper (0-2) S: Rich Gossage (9) | Fifth | 4½ out |
| Thursday, May 10 |
| » Defeated Padres (18-12), 7-0 | Busch Stadium II (6-10) | 15-17 | |
| » W: Joaquin Andujar (5-3) L: Tim Lollar (2-3) | Fourth | 3½ out |
| » Major-league debuts: Tom Nieto (Cardinals) |
| Friday, May 11 |
| » Lost to Reds (18-14), 4-3 | Riverfront Stadium (0-1) | 15-18 | |
| » W: Jeff Russell (2-3) L: Dave LaPoint (4-4) S: John Franco (3) | Fifth | 4 out |
| Saturday, May 12 |
| » Lost to Reds (19-14), 2-1 | Riverfront Stadium (0-2) | 15-19 | Lost 2 |
| » W: Mario Soto (5-1) L: Bruce Sutter (1-2) | Fifth | 5 out |
| Sunday, May 13 |
| » Defeated Reds (19-15), 6-2 | Riverfront Stadium (1-2) | 16-19 | |
| » W: John Stuper (1-2) L: Bob Owchinko (1-1) S: Bruce Sutter (8) | Fifth | 4 out |
| Tuesday, May 15 |
| » Defeated Braves (18-16), 9-1 | Busch Stadium II (7-10) | 17-19 | Won 2 |
| » W: Joaquin Andujar (6-3) L: Len Barker (3-4) | Fifth | 4 out |
| Wednesday, May 16 |
| » Defeated Braves (18-17), 4-2 | Busch Stadium II (8-10) | 18-19 | Won 3 |
| » W: Dave LaPoint (5-4) L: Craig McMurtry (3-4) S: Bruce Sutter (9) | Fifth | 3½ out |
| Thursday, May 17 |
| » Lost to Braves (19-17), 7-2 | Busch Stadium II (8-11) | 18-20 | |
| » W: Pascual Perez (3-0) L: Danny Cox (2-5) | Fifth | 3½ out |
| Friday, May 18 |
| » Defeated Reds (20-18), 5-3 | Busch Stadium II (9-11) | 19-20 | |
| » W: John Stuper (2-2) L: Joe Price (2-2) S: Neil Allen (2) | Fifth | 3½ out |
| Saturday, May 19 |
| » Defeated Reds (20-19), 9-1 | Busch Stadium II (10-11) | 20-20 | Won 2 |
| » W: Joaquin Andujar (7-3) L: Bruce Berenyi (1-5) | Fifth | 3½ out |
| » Major-league debuts: Eric Davis (Reds) |
| Sunday, May 20 |
| » Defeated Reds (20-20), 3-2 | Busch Stadium II (11-11) | 21-20 | Won 3 |
| » W: Neil Allen (2-0) L: Tom Hume (2-4) | Fourth | 3½ out |
| Monday, May 21 |
| » Lost to Astros (16-24), 3-2 | Busch Stadium II (11-12) | 21-21 | |
| » W: Nolan Ryan (5-2) L: Bob Forsch (0-4) S: Frank DiPino (6) | Fifth | 4 out |
| Tuesday, May 22 |
| » Lost to Astros (17-24), 4-3 | Busch Stadium II (11-13) | 21-22 | Lost 2 |
| » W: Bill Dawley (3-3) L: Bruce Sutter (1-3) S: Mike LaCoss (1) | Fifth | 4½ out |
| Wednesday, May 23 |
| » Lost to Astros (18-24), 4-0 | Busch Stadium II (11-14) | 21-23 | Lost 3 |
| » W: Bob Knepper (4-5) L: Joaquin Andujar (7-4) | Fifth | 5½ out |
| Friday, May 25 |
| » Lost to Braves (22-21), 8-4 | Atlanta-Fulton County Stadium (0-1) | 21-24 | Lost 4 |
| » W: Len Barker (4-4) L: Dave LaPoint (5-5) S: Donnie Moore (1) | Fifth | 6½ out |
| Saturday, May 26 |
| » Lost to Braves (23-21), 7-3 | Atlanta-Fulton County Stadium (0-2) | 21-25 | Lost 5 |
| » W: Rick Mahler (2-1) L: Neil Allen (2-1) S: Jeff Dedmon (3) | Fifth | 6½ out |
| Sunday, May 27 |
| » Defeated Braves (23-22), 12-9 | Atlanta-Fulton County Stadium (1-2) | 22-25 | |
| » W: Joaquin Andujar (8-4) L: Craig McMurtry (3-6) S: Bruce Sutter (10) | Fifth | 5½ out |
| Monday, May 28 |
| » Lost to Braves (24-22), 6-2 | Atlanta-Fulton County Stadium (1-3) | 22-26 | |
| » W: Pete Falcone (3-5) L: Danny Cox (2-6) S: Donnie Moore (2) | Fifth | 6 out |
| Tuesday, May 29 |
| » Lost to Astros (20-27), 1-0 | Astrodome (0-1) | 22-27 | Lost 2 |
| » W: Bob Knepper (5-5) L: Dave LaPoint (5-6) S: Frank DiPino (7) | Fifth | 6 out |
| Wednesday, May 30 |
| » Defeated Astros (20-28), 6-4 | Astrodome (1-1) | 23-27 | |
| » W: Ricky Horton (1-0) L: Frank DiPino (1-4) S: Bruce Sutter (11) | Fifth | 6 out |
| Thursday, May 31 |
| » Defeated Mets (22-21), 5-2 | Shea Stadium (1-0) | 24-27 | Won 2 |
| » W: Bob Forsch (1-4) L: Walt Terrell (3-5) S: Bruce Sutter (12) | Fifth | 5½ out |
| Friday, June 1 |
| » Defeated Mets (22-22), 5-1 | Shea Stadium (2-0) | 25-27 | Won 3 |
| » W: Joaquin Andujar (9-4) L: Jesse Orosco (4-2) | Fifth | 5 out |
| Saturday, June 2 |
| » Lost to Mets (23-22), 5-2 | Shea Stadium (2-1) | 25-28 | |
| » W: Ed Lynch (5-1) L: Danny Cox (2-7) S: Doug Sisk (5) | Fifth | 5½ out |
| Sunday, June 3 |
| » Defeated Mets (23-23), 1-0 | Shea Stadium (3-1) | 26-28 | |
| » W: Dave LaPoint (6-6) L: Mike Torrez (0-5) | Fifth | 5 out |
| Monday, June 4 |
| » Defeated Phillies (28-22), 4-3 | Busch Stadium II (12-14) | 27-28 | Won 2 |
| » W: Bruce Sutter (2-3) L: Al Holland (4-3) | Fourth | 4½ out |
| Tuesday, June 5 |
| » Defeated Phillies (28-23), 5-3 | Busch Stadium II (13-14) | 28-28 | Won 3 |
| » W: Joaquin Andujar (10-4) L: Charles Hudson (6-4) S: Bruce Sutter (13) | Fourth | 4½ out |
| Wednesday, June 6 |
| » Defeated Phillies (28-24), 4-3 | Busch Stadium II (14-14) | 29-28 | Won 4 |
| » W: Neil Allen (3-1) L: Bill Campbell (3-1) | Fourth | 3½ out |
| Friday, June 8 |
| » Defeated Cubs (30-24), 5-4 | Busch Stadium II (15-14) | 30-28 | Won 5 |
| » W: Jeff Lahti (2-1) L: Tim Stoddard (3-1) S: Bruce Sutter (14) | Third | 2 out |
| Saturday, June 9 |
| » Lost to Cubs (31-24), 5-0 | Busch Stadium II (15-15) | 30-29 | |
| » W: Rich Bordi (2-0) L: John Stuper (2-3) | Third | 3 out |
| Sunday, June 10 |
| » Lost to Cubs (32-24), 2-0 | Busch Stadium II (15-16) | 30-30 | Lost 2 |
| » W: Chuck Rainey (5-4) L: Joaquin Andujar (10-5) S: Lee Smith (11) | Fourth | 4 out |
| Monday, June 11 |
| » Defeated Phillies (31-26), 6-4 | Veteran's Stadium (1-0) | 31-30 | |
| » W: Danny Cox (3-7) L: Marty Bystrom (2-3) S: Bruce Sutter (15) | Fourth | 3 out |
| Tuesday, June 12 |
| » Defeated Phillies (31-27), 7-2 | Veteran's Stadium (2-0) | 32-30 | Won 2 |
| » W: Ricky Horton (2-0) L: Kevin Gross (2-2) S: Neil Allen (3) | Fourth | 3 out |
| Wednesday, June 13 |
| » Lost to Phillies (32-27), 4-1 | Veteran's Stadium (2-1) | 32-31 | |
| » W: Jerry Koosman (6-6) L: Dave LaPoint (6-7) | Fourth | 4 out |
| Thursday, June 14 |
| » Lost to Mets (32-25), 6-0 | Busch Stadium II (15-17) | 32-32 | Lost 2 |
| » W: Ron Darling (6-3) L: John Stuper (2-4) | Fourth | 4 out |
| Friday, June 15 |
| » Lost to Mets (33-25), 5-0 | Busch Stadium II (15-18) | 32-33 | Lost 3 |
| » W: Walt Terrell (5-6) L: Joaquin Andujar (10-6) | Third | 4½ out |
| Saturday, June 16 |
| » Lost to Mets (34-25), 4-1 | Busch Stadium II (15-19) | 32-34 | Lost 4 |
| » W: Dwight Gooden (6-3) L: Danny Cox (3-8) S: Jesse Orosco (13) | Fourth | 5½ out |
| Sunday, June 17 |
| » Defeated Mets (34-26), 6-3 | Busch Stadium II (16-19) | 33-34 | |
| » W: Ricky Horton (3-0) L: Bruce Berenyi (3-8) S: Bruce Sutter (16) | Fourth | 5 out |
| Tuesday, June 19 |
| » Lost to Expos (33-33), 6-3 | Stade Olympique (2-2) | 33-35 | |
| » W: Steve Rogers (3-5) L: Ken Dayley (0-4) S: Bob James (2) | Fifth | 6 out |
| » Major-league debuts: Mark Salas (Cardinals) |
| Wednesday, June 20 |
| » Defeated Expos (33-34), 2-0 | Stade Olympique (3-2) | 34-35 | |
| » W: Joaquin Andujar (11-6) L: Jeff Reardon (3-2) | Fifth | 5 out |
| Friday, June 22 |
| » Lost to Cubs (36-31), 9-3 | Wrigley Field (1-3) | 34-36 | |
| » W: Rick Reuschel (4-3) L: John Stuper (2-5) S: Lee Smith (14) | Fifth | 5 out |
| Saturday, June 23 |
| » Lost to Cubs (37-31), 12-11 | Wrigley Field (1-4) | 34-37 | Lost 2 |
| » W: Lee Smith (4-4) L: Dave Rucker (1-1) | Fifth | 6 out |
| Sunday, June 24 |
| » Lost to Cubs (38-31), 5-0 | Wrigley Field (1-5) | 34-38 | Lost 3 |
| » W: Rick Sutcliffe (6-5) L: Ricky Horton (3-1) | Fifth | 6 out |
| Monday, June 25 |
| » Defeated Expos (35-36), 5-4 | Busch Stadium II (17-19) | 35-38 | |
| » W: Joaquin Andujar (12-6) L: Steve Rogers (3-6) S: Bruce Sutter (17) | Fifth | 6 out |
| Tuesday, June 26 |
| » Defeated Expos (35-37), 6-3 | Busch Stadium II (18-19) | 36-38 | Won 2 |
| » W: John Stuper (3-5) L: David Palmer (2-3) S: Bruce Sutter (18) | Fifth | 5 out |
| Wednesday, June 27 |
| » Lost to Expos (36-37), 4-2 | Busch Stadium II (18-20) | 36-39 | |
| » W: Bill Gullickson (4-5) L: Ralph Citarella (0-1) S: Jeff Reardon (11) | Fifth | 6 out |
| Thursday, June 28 |
| » Lost to Padres (44-29), 7-3 | San Diego/Jack Murphy Stadium (0-3) | 36-40 | Lost 2 |
| » W: Mark Thurmond (5-3) L: Ken Dayley (0-5) | Fourth | 6 out |
| Friday, June 29 |
| » Defeated Padres (44-30), 5-0 | San Diego/Jack Murphy Stadium (1-3) | 37-40 | |
| » W: Ricky Horton (4-1) L: Eric Show (8-5) | Fifth | 6 out |
| Saturday, June 30 |
| » Defeated Padres (44-31), 4-1 | San Diego/Jack Murphy Stadium (2-3) | 38-40 | Won 2 |
| » W: Joaquin Andujar (13-6) L: Tim Lollar (7-6) S: Bruce Sutter (19) | Fourth | 5 out |
| Sunday, July 1 |
| » Lost to Padres (45-31), 3-1 | San Diego/Jack Murphy Stadium (2-4) | 38-41 | |
| » W: Ed Whitson (9-4) L: Dave LaPoint (6-8) S: Rich Gossage (14) | Fifth | 6 out |
| Tuesday, July 3 |
| » Lost to Giants (32-45), 6-2 | Candlestick Park (2-2) | 38-42 | Lost 2 |
| » W: Mike Krukow (4-7) L: Neil Allen (3-2) | Fifth | 6½ out |
| Wednesday, July 4 |
| » Defeated Giants (32-46), 4-3 | Candlestick Park (3-2) | 39-42 | |
| » W: Ricky Horton (5-1) L: Mark Davis (3-7) S: Bruce Sutter (20) | Fifth | 6 out |
| » Defeated Giants (32-47), 5-1 | Candlestick Park (4-2) | 40-42 | Won 2 |
| » W: Kurt Kepshire (1-0) L: Jeff Robinson (4-10) S: Jeff Lahti (1) | Fifth | 6 out |
| » Major-league debuts: Kurt Kepshire (Cardinals) |
| Thursday, July 5 |
| » Defeated Dodgers (43-42), 3-0 | Dodger Stadium (2-1) | 41-42 | Won 3 |
| » W: Neil Allen (4-2) L: Bob Welch (6-9) S: Bruce Sutter (21) | Fourth | 6 out |
| Friday, July 6 |
| » Lost to Dodgers (44-42), 3-2 | Dodger Stadium (2-2) | 41-43 | |
| » W: Ken Howell (1-2) L: Neil Allen (4-3) | Fifth | 7 out |
| Saturday, July 7 |
| » Lost to Dodgers (45-42), 3-0 | Dodger Stadium (2-3) | 41-44 | Lost 2 |
| » W: Alejandro Pena (10-4) L: Rick Ownbey (0-1) | Fifth | 7½ out |
| Sunday, July 8 |
| » Defeated Dodgers (45-43), 8-6 | Dodger Stadium (3-3) | 42-44 | |
| » W: Bruce Sutter (3-3) L: Pat Zachry (4-3) S: Dave VonOhlen (1) | Fifth | 7½ out |
| Thursday, July 12 |
| » Lost to Padres (50-34), 4-1 | Busch Stadium II (18-21) | 42-45 | |
| » W: Eric Show (9-6) L: Joaquin Andujar (13-7) S: Craig Lefferts (4) | Fifth | 8½ out |
| Friday, July 13 |
| » Defeated Padres (50-35), 7-4 | Busch Stadium II (19-21) | 43-45 | |
| » W: Neil Allen (5-3) L: Luis DeLeon (1-1) | Fifth | 8½ out |
| Saturday, July 14 |
| » Defeated Padres (50-36), 7-6 | Busch Stadium II (20-21) | 44-45 | Won 2 |
| » W: Dave LaPoint (7-8) L: Tim Lollar (7-7) S: Bruce Sutter (22) | Fifth | 8½ out |
| Sunday, July 15 |
| » Lost to Padres (51-36), 6-1 | Busch Stadium II (20-22) | 44-46 | |
| » W: Dave Dravecky (7-4) L: Kurt Kepshire (1-1) | Fifth | 8½ out |
| Monday, July 16 |
| » Lost to Giants (34-55), 7-6 | Busch Stadium II (20-23) | 44-47 | Lost 2 |
| » W: Bill Laskey (5-9) L: Rick Ownbey (0-2) S: Greg Minton (8) | Fifth | 9½ out |
| Tuesday, July 17 |
| » Lost to Giants (35-55), 7-2 | Busch Stadium II (20-24) | 44-48 | Lost 3 |
| » W: Mike Krukow (6-8) L: Joaquin Andujar (13-8) S: Greg Minton (9) | Fifth | 9½ out |
| Wednesday, July 18 |
| » Defeated Giants (35-56), 8-4 | Busch Stadium II (21-24) | 45-48 | |
| » W: Dave VonOhlen (1-0) L: Bob Lacey (0-1) | Fifth | 9½ out |
| » Major-league debuts: Terry Pendleton (Cardinals) |
| Thursday, July 19 |
| » Lost to Dodgers (48-48), 10-0 | Busch Stadium II (21-25) | 45-49 | |
| » W: Orel Hershiser (6-3) L: Dave LaPoint (7-9) | Fifth | 9½ out |
| Friday, July 20 |
| » Defeated Dodgers (48-49), 10-5 | Busch Stadium II (22-25) | 46-49 | |
| » W: Kurt Kepshire (2-1) L: Fernando Valenzuela (8-11) | Fifth | 9½ out |
| Saturday, July 21 |
| » Lost to Dodgers (49-49), 3-1 | Busch Stadium II (22-26) | 46-50 | |
| » W: Rick Honeycutt (8-4) L: Joaquin Andujar (13-9) | Fifth | 10½ out |
| Sunday, July 22 |
| » Defeated Dodgers (49-50), 7-6 | Busch Stadium II (23-26) | 47-50 | |
| » W: Danny Cox (4-8) L: Bob Welch (6-11) S: Bruce Sutter (23) | Fifth | 10½ out |
| Monday, July 23 |
| » Lost to Mets (56-37), 4-3 | Shea Stadium (3-2) | 47-51 | |
| » W: Ed Lynch (8-5) L: Neil Allen (5-4) | Fifth | 11½ out |
| Tuesday, July 24 |
| » Lost to Mets (57-37), 9-8 | Shea Stadium (3-3) | 47-52 | Lost 2 |
| » W: Brent Gaff (1-1) L: Neil Allen (5-5) | Fifth | 12½ out |
| Wednesday, July 25 |
| » Lost to Mets (58-37), 9-3 | Shea Stadium (3-4) | 47-53 | Lost 3 |
| » W: Sid Fernandez (3-0) L: Kurt Kepshire (2-2) S: Ed Lynch (2) | Fifth | 13½ out |
| Friday, July 27 |
| » Defeated Pirates (44-58), 3-2 | Three Rivers Stadium (4-0) | 48-53 | |
| » W: Joaquin Andujar (14-9) L: Kent Tekulve (2-7) S: Bruce Sutter (24) | Fifth | 13½ out |
| Saturday, July 28 |
| » Defeated Pirates (44-59), 5-1 | Three Rivers Stadium (5-0) | 49-53 | Won 2 |
| » W: Danny Cox (5-8) L: Jose DeLeon (6-7) S: Bruce Sutter (25) | Fifth | 12½ out |
| Sunday, July 29 |
| » Defeated Pirates (44-60), 4-3 | Three Rivers Stadium (6-0) | 50-53 | Won 3 |
| » W: Neil Allen (6-5) L: John Candelaria (9-7) S: Bruce Sutter (26) | Fifth | 11 out |
| Monday, July 30 |
| » Defeated Mets (59-41), 3-1 | Busch Stadium II (24-26) | 51-53 | Won 4 |
| » W: Jeff Lahti (3-1) L: Jesse Orosco (8-3) | Fifth | 10 out |
| Tuesday, July 31 |
| » Defeated Mets (59-42), 6-3 | Busch Stadium II (25-26) | 52-53 | Won 5 |
| » W: Kurt Kepshire (3-2) L: Ed Lynch (8-6) S: Bruce Sutter (27) | Fifth | 9 out |
| Wednesday, August 1 |
| » Defeated Mets (59-43), 11-2 | Busch Stadium II (26-26) | 53-53 | Won 6 |
| » W: Joaquin Andujar (15-9) L: Dwight Gooden (9-7) | Fourth | 8½ out |
| Thursday, August 2 |
| » Lost to Phillies (57-48), 3-2 | Busch Stadium II (26-27) | 53-54 | |
| » W: Shane Rawley (6-6) L: Danny Cox (5-9) S: Al Holland (23) | Fourth | 9½ out |
| Friday, August 3 |
| » Defeated Phillies (57-49), 4-3 | Busch Stadium II (27-27) | 54-54 | |
| » W: Ricky Horton (6-1) L: Jerry Koosman (12-8) S: Bruce Sutter (28) | Fourth | 8½ out |
| Saturday, August 4 |
| » Defeated Phillies (57-50), 3-2 | Busch Stadium II (28-27) | 55-54 | Won 2 |
| » W: Dave LaPoint (8-9) L: Larry Andersen (1-2) S: Bruce Sutter (29) | Fourth | 8½ out |
| Sunday, August 5 |
| » Lost to Phillies (58-50), 6-3 | Busch Stadium II (28-28) | 55-55 | |
| » W: Bill Campbell (4-3) L: Jeff Lahti (3-2) S: Al Holland (24) | Fourth | 9½ out |
| Monday, August 6 |
| » Lost to Pirates (48-64), 3-2 | Busch Stadium II (28-29) | 55-56 | Lost 2 |
| » W: Larry McWilliams (7-8) L: Joaquin Andujar (15-10) S: Kent Tekulve (9) | Fourth | 10½ out |
| Tuesday, August 7 |
| » Defeated Pirates (48-65), 2-1 | Busch Stadium II (29-29) | 56-56 | |
| » W: Danny Cox (6-9) L: Jose DeLeon (6-8) S: Bruce Sutter (30) | Fourth | 11 out |
| Wednesday, August 8 |
| » Lost to Pirates (49-65), 6-4 | Busch Stadium II (29-30) | 56-57 | |
| » W: John Candelaria (10-8) L: Ricky Horton (6-2) S: Lee Tunnell (1) | Fourth | 12 out |
| Thursday, August 9 |
| » Lost to Phillies (61-52), 2-1 | Veteran's Stadium (2-2) | 56-58 | Lost 2 |
| » W: Bill Campbell (5-4) L: Dave Rucker (1-2) | Fourth | 12 out |
| Friday, August 10 |
| » Defeated Phillies (61-53), 3-0 | Veteran's Stadium (3-2) | 57-58 | |
| » W: Bruce Sutter (4-3) L: Larry Andersen (1-3) | Fourth | 11 out |
| Saturday, August 11 |
| » Lost to Phillies (62-53), 6-1 | Veteran's Stadium (3-3) | 57-59 | |
| » W: Steve Carlton (11-5) L: Joaquin Andujar (15-11) | Fourth | 12 out |
| Monday, August 13 |
| » Defeated Reds (50-69), 5-3 | Busch Stadium II (30-30) | 58-59 | |
| » W: Ricky Horton (7-2) L: Mario Soto (12-6) S: Bruce Sutter (31) | Fourth | 11½ out |
| Tuesday, August 14 |
| » Defeated Reds (50-70), 8-2 | Busch Stadium II (31-30) | 59-59 | Won 2 |
| » W: Dave LaPoint (9-9) L: Jeff Russell (5-13) | Fourth | 10½ out |
| » Major-league debuts: Ron Robinson (Reds) |
| Former Cardinal Spud Davis dies in Birmingham, AL at the age of 80. Former Cardinal Lynn McGlothen dies in Dubach, LA at the age of 35. |
| Wednesday, August 15 |
| » Lost to Reds (51-70), 3-2 | Busch Stadium II (31-31) | 59-60 | |
| » W: Tom Hume (4-12) L: Bruce Sutter (4-4) | Fourth | 10½ out |
| Friday, August 17 |
| » Defeated Braves (62-60), 3-1 | Busch Stadium II (32-31) | 60-60 | |
| » W: Joaquin Andujar (16-11) L: Pascual Perez (11-5) S: Bruce Sutter (32) | Fourth | 9½ out |
| Saturday, August 18 |
| » Lost to Braves (63-60), 8-3 | Busch Stadium II (32-32) | 60-61 | |
| » W: Tony Brizzolara (1-1) L: Danny Cox (6-10) S: Gene Garber (6) | Fifth | 10½ out |
| Sunday, August 19 |
| » Defeated Braves (63-61), 8-5 | Busch Stadium II (33-32) | 61-61 | |
| » W: Ricky Horton (8-2) L: Rick Camp (6-5) S: Bruce Sutter (33) | Fifth | 10½ out |
| Monday, August 20 |
| » Defeated Reds (52-73), 9-7 | Riverfront Stadium (2-2) | 62-61 | Won 2 |
| » W: Jeff Lahti (4-2) L: Jay Tibbs (2-1) | Fifth | 10½ out |
| Tuesday, August 21 |
| » Lost to Reds (53-73), 4-1 | Riverfront Stadium (2-3) | 62-62 | |
| » W: Joe Price (6-9) L: Kurt Kepshire (3-3) S: Ted Power (5) | Fifth | 11½ out |
| Wednesday, August 22 |
| » Defeated Reds (53-74), 6-3 | Riverfront Stadium (3-3) | 63-62 | |
| » W: Joaquin Andujar (17-11) L: Mario Soto (13-7) S: Bruce Sutter (34) | Fifth | 10½ out |
| Thursday, August 23 |
| » Lost to Astros (65-64), 9-6 | Astrodome (1-2) | 63-63 | |
| » W: Dave Smith (2-2) L: Dave Rucker (1-3) S: Frank DiPino (12) | Fifth | 11 out |
| Friday, August 24 |
| » Lost to Astros (66-64), 7-2 | Astrodome (1-3) | 63-64 | Lost 2 |
| » W: Joe Niekro (13-9) L: Ricky Horton (8-3) | Fifth | 12 out |
| Saturday, August 25 |
| » Lost to Astros (67-64), 5-2 | Astrodome (1-4) | 63-65 | Lost 3 |
| » W: Bob Knepper (13-9) L: Dave LaPoint (9-10) | Fifth | 12 out |
| Sunday, August 26 |
| » Defeated Astros (67-65), 3-2 | Astrodome (2-4) | 64-65 | |
| » W: Kurt Kepshire (4-3) L: Nolan Ryan (11-8) S: Bruce Sutter (35) | Fifth | 12 out |
| Tuesday, August 28 |
| » Defeated Braves (65-66), 5-3 | Atlanta-Fulton County Stadium (2-3) | 65-65 | Won 2 |
| » W: Bruce Sutter (5-4) L: Gene Garber (2-3) S: Ricky Horton (1) | Fourth | 12½ out |
| Wednesday, August 29 |
| » Defeated Braves (65-67), 10-6 | Atlanta-Fulton County Stadium (3-3) | 66-65 | Won 3 |
| » W: Neil Allen (7-5) L: Craig McMurtry (8-13) | Fourth | 12½ out |
| Friday, August 31 |
| » Defeated Astros (68-67), 7-5 | Busch Stadium II (34-32) | 67-65 | Won 4 |
| » W: Neil Allen (8-5) L: Nolan Ryan (11-9) S: Bruce Sutter (36) | Fourth | 12 out |
| Saturday, September 1 |
| » Lost to Astros (69-67), 8-4 | Busch Stadium II (34-33) | 67-66 | |
| » W: Mark Ross (1-0) L: Kurt Kepshire (4-4) S: Dave Smith (5) | Fourth | 13 out |
| Sunday, September 2 |
| » Defeated Astros (69-68), 4-1 | Busch Stadium II (35-33) | 68-66 | |
| » W: Ricky Horton (9-3) L: Joe Niekro (13-10) S: Bruce Sutter (37) | Fourth | 13 out |
| » Major-league debuts: Jeff Calhoun and Glenn Davis (Astros) |
| Monday, September 3 |
| » Defeated Mets (77-60), 7-3 | Busch Stadium II (36-33) | 69-66 | Won 2 |
| » W: Joaquin Andujar (18-11) L: Ron Darling (11-6) S: Bruce Sutter (38) | Fourth | 13 out |
| Tuesday, September 4 |
| » Defeated Mets (77-61), 12-2 | Busch Stadium II (37-33) | 70-66 | Won 3 |
| » W: Danny Cox (7-10) L: Sid Fernandez (4-4) | Fourth | 13 out |
| » Major-league debuts: Kevin Mitchell (Mets) |
| Wednesday, September 5 |
| » Defeated Phillies (73-65), 6-5 | Busch Stadium II (38-33) | 71-66 | Won 4 |
| » W: Dave Rucker (2-3) L: Al Holland (5-10) | Fourth | 12 out |
| Thursday, September 6 |
| » Defeated Phillies (73-66), 6-5 | Busch Stadium II (39-33) | 72-66 | Won 5 |
| » W: Bob Forsch (2-4) L: Bill Campbell (6-5) S: Bruce Sutter (39) | Fourth | 12 out |
| Friday, September 7 |
| » Lost to Pirates (62-79), 4-1 | Three Rivers Stadium (6-1) | 72-67 | |
| » W: John Tudor (9-10) L: Ricky Horton (9-4) S: Rod Scurry (4) | Fourth | 12 out |
| Saturday, September 8 |
| » Defeated Pirates (62-80), 9-2 | Three Rivers Stadium (7-1) | 73-67 | |
| » W: Joaquin Andujar (19-11) L: Larry McWilliams (9-10) | Third | 12 out |
| Sunday, September 9 |
| » Defeated Pirates (62-81), 2-1 | Three Rivers Stadium (8-1) | 74-67 | Won 2 |
| » W: Danny Cox (8-10) L: Jose DeLeon (6-13) S: Bruce Sutter (40) | Third | 11 out |
| Monday, September 10 |
| » Defeated Mets (80-64), 3-2 | Shea Stadium (4-4) | 75-67 | Won 3 |
| » W: Dave LaPoint (10-10) L: Sid Fernandez (4-5) S: Bruce Sutter (41) | Third | 11 out |
| Tuesday, September 11 |
| » Defeated Mets (80-65), 9-5 | Shea Stadium (5-4) | 76-67 | Won 4 |
| » W: Neil Allen (9-5) L: Jesse Orosco (9-6) S: Bruce Sutter (42) | Third | 10 out |
| Wednesday, September 12 |
| » Lost to Phillies (76-69), 3-1 | Veteran's Stadium (3-4) | 76-68 | |
| » W: Shane Rawley (11-7) L: Kurt Kepshire (4-5) | Fourth | 11½ out |
| » Lost to Phillies (77-69), 6-5 | Veteran's Stadium (3-5) | 76-69 | Lost 2 |
| » W: Tug McGraw (2-0) L: Bruce Sutter (5-5) | Fourth | 11½ out |
| Thursday, September 13 |
| » Lost to Phillies (78-69), 10-2 | Veteran's Stadium (3-6) | 76-70 | Lost 3 |
| » W: John Denny (7-6) L: Joaquin Andujar (19-12) | Fourth | 12 out |
| Friday, September 14 |
| » Lost to Pirates (65-83), 8-7 | Busch Stadium II (39-34) | 76-71 |