| Thursday, January 8 |
| Former Red Frank Hiller dies in West Chester, PA at the age of 67. |
| Monday, April 6 |
| » Defeated Expos (0-1), 11-5 | Riverfront Stadium (1-0) | 1-0 | |
| » W: Bill Landrum (1-0) L: Floyd Youmans (0-1) | First | -- |
| » Major-league debuts: Leo Garcia and Lloyd McClendon (Reds) |
| Wednesday, April 8 |
| » Defeated Expos (0-2), 7-2 | Riverfront Stadium (2-0) | 2-0 | Won 2 |
| » W: Bill Gullickson (1-0) L: Jay Tibbs (0-1) | Second | ½ out |
| Friday, April 10 |
| » Defeated Padres (0-4), 6-3 | Riverfront Stadium (3-0) | 3-0 | Won 3 |
| » W: Rob Murphy (1-0) L: Dave Dravecky (0-2) S: John Franco (1) | Third | 1 out |
| Saturday, April 11 |
| » Defeated Padres (0-5), 5-1 | Riverfront Stadium (4-0) | 4-0 | Won 4 |
| » W: Tom Browning (1-0) L: Eric Show (0-1) | Second | ½ out |
| Sunday, April 12 |
| » Lost to Padres (1-5), 5-2 | Riverfront Stadium (4-1) | 4-1 | |
| » W: Ed Whitson (1-1) L: Guy Hoffman (0-1) S: Lance McCullers (1) | Second | 1½ out |
| Monday, April 13 |
| » Defeated Braves (4-2), 7-2 | Atlanta-Fulton County Stadium (1-0) | 5-1 | |
| » W: Bill Gullickson (2-0) L: Zane Smith (0-1) | Second | ½ out |
| Tuesday, April 14 |
| » Defeated Braves (4-3), 6-3 | Atlanta-Fulton County Stadium (2-0) | 6-1 | Won 2 |
| » W: Ted Power (1-0) L: David Palmer (0-2) S: John Franco (2) | First | -- |
| Wednesday, April 15 |
| » Lost to Braves (5-3), 4-3 | Atlanta-Fulton County Stadium (2-1) | 6-2 | |
| » W: Rick Mahler (2-0) L: Tom Browning (1-1) S: Gene Garber (1) | Third | 1 out |
| Friday, April 17 |
| » Defeated Astros (7-3), 9-8 | Riverfront Stadium (5-1) | 7-2 | |
| » W: Rob Murphy (2-0) L: Bob Knepper (1-1) S: John Franco (3) | First | -- |
| Saturday, April 18 |
| » Defeated Astros (7-4), 8-0 | Riverfront Stadium (6-1) | 8-2 | Won 2 |
| » W: Bill Gullickson (3-0) L: Nolan Ryan (1-2) | First | -- |
| Sunday, April 19 |
| » Lost to Astros (8-4), 7-3 | Riverfront Stadium (6-2) | 8-3 | |
| » W: Mike Scott (3-0) L: Tom Browning (1-2) | Second | ½ out |
| » Defeated Astros (8-5), 6-2 | Riverfront Stadium (7-2) | 9-3 | |
| » W: Ted Power (2-0) L: Danny Darwin (1-1) S: Ron Robinson (1) | Second | ½ out |
| Monday, April 20 |
| » Defeated Padres (2-12), 12-3 | San Diego/Jack Murphy Stadium (1-0) | 10-3 | Won 2 |
| » W: Guy Hoffman (1-1) L: Storm Davis (0-2) | Second | ½ out |
| Tuesday, April 21 |
| » Lost to Padres (3-12), 3-2 | San Diego/Jack Murphy Stadium (1-1) | 10-4 | |
| » W: Lance McCullers (2-1) L: Rob Murphy (2-1) | Second | ½ out |
| Wednesday, April 22 |
| » Lost to Padres (4-12), 6-3 | San Diego/Jack Murphy Stadium (1-2) | 10-5 | Lost 2 |
| » W: Ed Whitson (2-2) L: Bill Landrum (1-1) S: Craig Lefferts (1) | Second | ½ out |
| Thursday, April 23 |
| » Defeated Padres (4-13), 3-2 | San Diego/Jack Murphy Stadium (2-2) | 11-5 | |
| » W: Tom Browning (2-2) L: Andy Hawkins (0-2) S: Ron Robinson (2) | First | -- |
| Friday, April 24 |
| » Defeated Astros (11-6), 4-3 | Astrodome (1-0) | 12-5 | Won 2 |
| » W: Rob Murphy (3-1) L: Charlie Kerfeld (0-2) S: Ron Robinson (3) | First | -- |
| Saturday, April 25 |
| » Defeated Astros (11-7), 3-0 | Astrodome (2-0) | 13-5 | Won 3 |
| » W: John Franco (1-0) L: Larry Andersen (2-1) S: Frank Williams (1) | First | -- |
| Sunday, April 26 |
| » Defeated Astros (11-8), 11-3 | Astrodome (3-0) | 14-5 | Won 4 |
| » W: Mario Soto (1-0) L: Bob Knepper (1-2) | First | -- |
| Tuesday, April 28 |
| » Lost to Braves (8-11), 7-3 | Riverfront Stadium (7-3) | 14-6 | |
| » W: Randy O'Neal (2-0) L: Tom Browning (2-3) | Second | ½ out |
| Wednesday, April 29 |
| » Lost to Braves (9-11), 5-2 | Riverfront Stadium (7-4) | 14-7 | Lost 2 |
| » W: Zane Smith (2-1) L: Bill Gullickson (3-1) S: Gene Garber (2) | Second | ½ out |
| Thursday, April 30 |
| » Defeated Braves (9-12), 9-8 | Riverfront Stadium (8-4) | 15-7 | |
| » W: Bill Landrum (2-1) L: Steve Ziem (0-1) | Second | ½ out |
| Friday, May 1 |
| » Defeated Phillies (7-14), 8-5 | Veteran's Stadium (1-0) | 16-7 | Won 2 |
| » W: Mario Soto (2-0) L: Don Carman (1-2) S: Ron Robinson (4) | First | -- |
| » Major-league debuts: Wally Ritchie (Phillies) |
| Saturday, May 2 |
| » Lost to Phillies (8-14), 8-3 | Veteran's Stadium (1-1) | 16-8 | |
| » W: Bruce Ruffin (2-1) L: Tom Browning (2-4) | First | -- |
| Sunday, May 3 |
| » Defeated Phillies (8-15), 9-6 | Veteran's Stadium (2-1) | 17-8 | |
| » W: Bill Gullickson (4-1) L: Kevin Gross (0-4) S: John Franco (4) | First | -- |
| Tuesday, May 5 |
| » Defeated Mets (12-12), 2-0 | Shea Stadium (1-0) | 18-8 | Won 2 |
| » W: Ted Power (3-0) L: Sid Fernandez (4-2) S: John Franco (5) | First | -- |
| Wednesday, May 6 |
| » Lost to Mets (13-12), 3-2 | Shea Stadium (1-1) | 18-9 | |
| » W: Rick Aguilera (3-1) L: Mario Soto (2-1) S: Jesse Orosco (7) | First | -- |
| Thursday, May 7 |
| Former Red Boom Beck dies in Champaign, IL at the age of 83. |
| Friday, May 8 |
| » Defeated Phillies (8-18), 4-3 | Riverfront Stadium (9-4) | 19-9 | |
| » W: Tom Browning (3-4) L: Bruce Ruffin (2-2) S: John Franco (6) | First | -- |
| Saturday, May 9 |
| » Lost to Phillies (9-18), 4-2 | Riverfront Stadium (9-5) | 19-10 | |
| » W: Kevin Gross (1-4) L: Bill Gullickson (4-2) | Second | 1 out |
| Sunday, May 10 |
| » Lost to Phillies (10-18), 4-3 | Riverfront Stadium (9-6) | 19-11 | Lost 2 |
| » W: Shane Rawley (2-2) L: Ted Power (3-1) S: Steve Bedrosian (2) | Second | 1 out |
| Monday, May 11 |
| » Defeated Mets (13-16), 12-2 | Riverfront Stadium (10-6) | 20-11 | |
| » W: Mario Soto (3-1) L: Rick Aguilera (3-2) | Second | ½ out |
| Tuesday, May 12 |
| » Lost to Mets (14-16), 6-2 | Riverfront Stadium (10-7) | 20-12 | |
| » W: David Cone (1-2) L: Jerry Reuss (0-1) | Second | ½ out |
| Wednesday, May 13 |
| » Defeated Expos (15-17), 12-6 | Stade Olympique (1-0) | 21-12 | |
| » W: Tom Browning (4-4) L: Randy St. Claire (2-1) | First | -- |
| Thursday, May 14 |
| » Defeated Expos (15-18), 10-9 | Stade Olympique (2-0) | 22-12 | Won 2 |
| » W: Ron Robinson (1-0) L: Randy St. Claire (2-2) S: John Franco (7) | First | -- |
| Friday, May 15 |
| » Lost to Cardinals (19-13), 5-4 | Busch Stadium II (0-1) | 22-13 | |
| » W: Danny Cox (4-1) L: Ted Power (3-2) S: Todd Worrell (6) | First | -- |
| Saturday, May 16 |
| » Lost to Cardinals (20-13), 6-5 | Busch Stadium II (0-2) | 22-14 | Lost 2 |
| » W: Tim Conroy (2-1) L: Mario Soto (3-2) S: Todd Worrell (7) | First | -- |
| Sunday, May 17 |
| » Lost to Cardinals (21-13), 10-2 | Busch Stadium II (0-3) | 22-15 | Lost 3 |
| » W: Lee Tunnell (1-0) L: Jerry Reuss (0-2) | First | -- |
| Tuesday, May 19 |
| » Lost to Cubs (23-14), 9-2 | Wrigley Field (0-1) | 22-16 | Lost 4 |
| » W: Rick Sutcliffe (7-2) L: Tom Browning (4-5) S: Ed Lynch (3) | Second | ½ out |
| Wednesday, May 20 |
| » Defeated Cubs (23-15), 6-2 | Wrigley Field (1-1) | 23-16 | |
| » W: Bill Gullickson (5-2) L: Greg Maddux (3-3) | Second | ½ out |
| Thursday, May 21 |
| » Lost to Cubs (24-15), 8-7 | Wrigley Field (1-2) | 23-17 | |
| » W: Lee Smith (1-2) L: John Franco (1-1) | Second | 1 out |
| Friday, May 22 |
| » Lost to Pirates (19-19), 4-1 | Riverfront Stadium (10-8) | 23-18 | Lost 2 |
| » W: Rick Reuschel (3-2) L: Ron Robinson (1-1) S: John Smiley (2) | Second | 2 out |
| Saturday, May 23 |
| » Lost to Pirates (20-19), 3-2 | Riverfront Stadium (10-9) | 23-19 | Lost 3 |
| » W: Bob Kipper (3-4) L: Pat Pacillo (0-1) S: Don Robinson (8) | Second | 2 out |
| » Major-league debuts: Pat Pacillo (Reds) |
| Sunday, May 24 |
| » Lost to Pirates (21-19), 7-2 | Riverfront Stadium (10-10) | 23-20 | Lost 4 |
| » W: Brian Fisher (2-1) L: Tom Browning (4-6) | Second | 3 out |
| Monday, May 25 |
| » Defeated Cubs (26-17), 5-4 | Riverfront Stadium (11-10) | 24-20 | |
| » W: Bill Gullickson (6-2) L: Greg Maddux (3-4) S: John Franco (8) | Second | 2 out |
| Tuesday, May 26 |
| » Defeated Cubs (26-18), 3-2 | Riverfront Stadium (12-10) | 25-20 | Won 2 |
| » W: John Franco (2-1) L: Lee Smith (1-3) | Second | 1 out |
| Wednesday, May 27 |
| » Lost to Cubs (27-18), 4-1 | Riverfront Stadium (12-11) | 25-21 | |
| » W: Jamie Moyer (5-3) L: Jerry Reuss (0-3) S: Lee Smith (13) | Second | 1 out |
| Friday, May 29 |
| » Defeated Pirates (21-23), 13-6 | Three Rivers Stadium (1-0) | 26-21 | |
| » W: Guy Hoffman (2-1) L: Bob Kipper (3-5) | First | -- |
| » Major-league debuts: Dave Johnson (Pirates) |
| Saturday, May 30 |
| » Defeated Pirates (21-24), 6-2 | Three Rivers Stadium (2-0) | 27-21 | Won 2 |
| » W: Bill Gullickson (7-2) L: Dorn Taylor (1-2) | First | -- |
| Sunday, May 31 |
| » Defeated Pirates (21-25), 5-2 | Three Rivers Stadium (3-0) | 28-21 | Won 3 |
| » W: Ted Power (4-2) L: Doug Drabek (1-3) S: John Franco (9) | First | -- |
| Monday, June 1 |
| » Lost to Cardinals (30-17), 8-6 | Riverfront Stadium (12-12) | 28-22 | |
| » W: Todd Worrell (1-2) L: Ron Robinson (1-2) | First | -- |
| Tuesday, June 2 |
| » Defeated Cardinals (30-18), 3-2 | Riverfront Stadium (13-12) | 29-22 | |
| » W: Guy Hoffman (3-1) L: Lee Tunnell (2-1) S: John Franco (10) | First | -- |
| Wednesday, June 3 |
| » Defeated Cardinals (30-19), 6-4 | Riverfront Stadium (14-12) | 30-22 | Won 2 |
| » W: Pat Pacillo (1-1) L: Tim Conroy (3-2) S: John Franco (11) | First | -- |
| Friday, June 5 |
| » Defeated Dodgers (25-28), 8-6 | Riverfront Stadium (15-12) | 31-22 | Won 3 |
| » W: Guy Hoffman (4-1) L: Ken Howell (2-2) S: John Franco (12) | First | -- |
| Saturday, June 6 |
| » Defeated Dodgers (25-29), 5-2 | Riverfront Stadium (16-12) | 32-22 | Won 4 |
| » W: Ted Power (5-2) L: Fernando Valenzuela (5-4) | First | -- |
| Sunday, June 7 |
| » Lost to Dodgers (26-29), 13-7 | Riverfront Stadium (16-13) | 32-23 | |
| » W: Bob Welch (8-2) L: Jerry Reuss (0-4) | First | -- |
| Monday, June 8 |
| » Defeated Giants (30-26), 7-6 | Riverfront Stadium (17-13) | 33-23 | |
| » W: John Franco (3-1) L: Scott Garrelts (5-4) | First | -- |
| Tuesday, June 9 |
| » Lost to Giants (31-26), 10-2 | Riverfront Stadium (17-14) | 33-24 | |
| » W: Mark Davis (4-4) L: Pat Pacillo (1-2) | First | -- |
| Wednesday, June 10 |
| » Lost to Giants (32-26), 9-4 | Riverfront Stadium (17-15) | 33-25 | Lost 2 |
| » W: Keith Comstock (2-0) L: Bill Gullickson (7-3) S: Scott Garrelts (7) | First | -- |
| Thursday, June 11 |
| » Lost to Braves (29-30), 6-4 | Riverfront Stadium (17-16) | 33-26 | Lost 3 |
| » W: Charlie Puleo (1-0) L: Rob Murphy (3-2) S: Gene Garber (6) | First | -- |
| Friday, June 12 |
| » Lost to Braves (30-30), 4-3 | Riverfront Stadium (17-17) | 33-27 | Lost 4 |
| » W: Rick Mahler (3-7) L: Jerry Reuss (0-5) S: Jim Acker (6) | First | -- |
| Saturday, June 13 |
| » Defeated Braves (30-31), 5-2 | Riverfront Stadium (18-17) | 34-27 | |
| » W: Guy Hoffman (5-1) L: David Palmer (4-7) | First | -- |
| Sunday, June 14 |
| » Defeated Braves (30-32), 4-3 | Riverfront Stadium (19-17) | 35-27 | Won 2 |
| » W: Rob Murphy (4-2) L: Gene Garber (8-4) S: John Franco (13) | First | -- |
| Monday, June 15 |
| » Lost to Astros (33-29), 4-0 | Astrodome (3-1) | 35-28 | |
| » W: Mike Scott (8-3) L: Bill Gullickson (7-4) | First | -- |
| Tuesday, June 16 |
| » Lost to Astros (34-29), 4-1 | Astrodome (3-2) | 35-29 | Lost 2 |
| » W: Jim Deshaies (6-2) L: Ted Power (5-3) S: Dave Smith (13) | First | -- |
| Wednesday, June 17 |
| » Defeated Astros (34-30), 9-1 | Astrodome (4-2) | 36-29 | |
| » W: Ron Robinson (2-2) L: Nolan Ryan (4-6) S: Bill Landrum (1) | First | -- |
| Thursday, June 18 |
| » Defeated Braves (32-33), 8-4 | Atlanta-Fulton County Stadium (3-1) | 37-29 | Won 2 |
| » W: Guy Hoffman (6-1) L: David Palmer (4-8) S: John Franco (14) | First | -- |
| Friday, June 19 |
| » Lost to Braves (33-33), 16-5 | Atlanta-Fulton County Stadium (3-2) | 37-30 | |
| » W: Zane Smith (7-4) L: Pat Pacillo (1-3) S: Jeff Dedmon (4) | First | -- |
| Saturday, June 20 |
| » Lost to Braves (34-33), 8-6 | Atlanta-Fulton County Stadium (3-3) | 37-31 | Lost 2 |
| » W: Doyle Alexander (4-1) L: Bill Gullickson (7-5) S: Gene Garber (7) | First | -- |
| Sunday, June 21 |
| » Defeated Braves (34-34), 6-5 | Atlanta-Fulton County Stadium (4-3) | 38-31 | |
| » W: Bill Landrum (3-1) L: Gene Garber (8-5) | First | -- |
| Former Red Phil Weintraub dies in Palm Springs, CA at the age of 80. |
| Tuesday, June 23 |
| » Defeated Giants (35-34), 4-1 | Candlestick Park (1-0) | 39-31 | Won 2 |
| » W: Ron Robinson (3-2) L: Atlee Hammaker (3-5) S: John Franco (15) | First | -- |
| Wednesday, June 24 |
| » Defeated Giants (35-35), 5-4 | Candlestick Park (2-0) | 40-31 | Won 3 |
| » W: John Franco (4-1) L: Scott Garrelts (5-5) | First | -- |
| Thursday, June 25 |
| » Lost to Giants (36-35), 7-6 | Candlestick Park (2-1) | 40-32 | |
| » W: Scott Garrelts (6-5) L: Rob Murphy (4-3) | First | -- |
| Friday, June 26 |
| » Defeated Dodgers (33-39), 6-0 | Dodger Stadium (1-0) | 41-32 | |
| » W: Ted Power (6-3) L: Rick Honeycutt (2-7) | First | -- |
| Saturday, June 27 |
| » Lost to Dodgers (34-39), 4-3 | Dodger Stadium (1-1) | 41-33 | |
| » W: Matt Young (3-5) L: John Franco (4-2) | First | -- |
| Sunday, June 28 |
| » Lost to Dodgers (35-39), 4-2 | Dodger Stadium (1-2) | 41-34 | Lost 2 |
| » W: Fernando Valenzuela (7-5) L: Guy Hoffman (6-2) | First | -- |
| Tuesday, June 30 |
| » Defeated Astros (40-35), 5-4 | Riverfront Stadium (20-17) | 42-34 | |
| » W: John Franco (5-2) L: Larry Andersen (5-4) | First | -- |
| Wednesday, July 1 |
| » Defeated Astros (40-36), 6-4 | Riverfront Stadium (21-17) | 43-34 | Won 2 |
| » W: Bill Scherrer (1-0) L: Danny Darwin (4-5) S: John Franco (16) | First | -- |
| Thursday, July 2 |
| » Lost to Mets (42-35), 5-0 | Riverfront Stadium (21-18) | 43-35 | |
| » W: Terry Leach (7-0) L: Ron Robinson (3-3) | First | -- |
| Friday, July 3 |
| » Defeated Mets (42-36), 8-3 | Riverfront Stadium (22-18) | 44-35 | |
| » W: Guy Hoffman (7-2) L: Ron Darling (2-6) S: Bill Landrum (2) | First | -- |
| Saturday, July 4 |
| » Defeated Mets (42-37), 7-3 | Riverfront Stadium (23-18) | 45-35 | Won 2 |
| » W: Bill Gullickson (8-5) L: John Mitchell (1-2) | First | -- |
| Sunday, July 5 |
| » Defeated Mets (42-38), 7-5 | Riverfront Stadium (24-18) | 46-35 | Won 3 |
| » W: Tom Browning (5-6) L: Dwight Gooden (5-2) S: John Franco (17) | First | -- |
| Monday, July 6 |
| » Lost to Phillies (39-41), 9-6 | Riverfront Stadium (24-19) | 46-36 | |
| » W: Michael Jackson (3-6) L: Ted Power (6-4) S: Steve Bedrosian (22) | First | -- |
| Tuesday, July 7 |
| » Lost to Phillies (40-41), 10-8 | Riverfront Stadium (24-20) | 46-37 | Lost 2 |
| » W: Kent Tekulve (3-3) L: John Franco (5-3) S: Steve Bedrosian (23) | First | -- |
| Wednesday, July 8 |
| » Lost to Phillies (41-41), 7-2 | Riverfront Stadium (24-21) | 46-38 | Lost 3 |
| » W: Bruce Ruffin (6-6) L: Guy Hoffman (7-3) | First | -- |
| Thursday, July 9 |
| » Defeated Expos (44-39), 7-2 | Riverfront Stadium (25-21) | 47-38 | |
| » W: Bill Gullickson (9-5) L: Neal Heaton (10-4) | First | -- |
| Friday, July 10 |
| » Lost to Expos (45-39), 5-1 | Riverfront Stadium (25-22) | 47-39 | |
| » W: Bryn Smith (6-3) L: Tom Browning (5-7) | First | -- |
| Saturday, July 11 |
| » Lost to Expos (46-39), 11-5 | Riverfront Stadium (25-23) | 47-40 | Lost 2 |
| » W: Dennis Martinez (4-1) L: Ted Power (6-5) S: Tim Burke (8) | First | -- |
| » Major-league debuts: Terry McGriff (Reds) |
| Sunday, July 12 |
| » Lost to Expos (47-39), 4-2 | Riverfront Stadium (25-24) | 47-41 | Lost 3 |
| » W: Bob Sebra (6-9) L: Guy Hoffman (7-4) S: Andy McGaffigan (8) | First | -- |
| Former Red Joe Burns dies in Beverly, MA at the age of 99. |
| Thursday, July 16 |
| » Lost to Mets (48-40), 9-0 | Shea Stadium (1-2) | 47-42 | Lost 4 |
| » W: Dwight Gooden (7-2) L: Bill Gullickson (9-6) | First | -- |
| Friday, July 17 |
| » Defeated Mets (48-41), 5-2 | Shea Stadium (2-2) | 48-42 | |
| » W: Frank Williams (1-0) L: Ron Darling (4-7) S: John Franco (18) | First | -- |
| Saturday, July 18 |
| » Defeated Mets (48-42), 7-3 | Shea Stadium (3-2) | 49-42 | Won 2 |
| » W: Ted Power (7-5) L: Sid Fernandez (9-6) S: Rob Murphy (1) | First | -- |
| Sunday, July 19 |
| » Lost to Mets (49-42), 6-5 | Shea Stadium (3-3) | 49-43 | |
| » W: Jesse Orosco (2-6) L: Bill Scherrer (1-1) | First | -- |
| Monday, July 20 |
| » Defeated Phillies (45-46), 10-6 | Veteran's Stadium (3-1) | 50-43 | |
| » W: John Franco (6-3) L: Michael Jackson (3-8) | First | -- |
| Tuesday, July 21 |
| » Defeated Phillies (45-47), 4-3 | Veteran's Stadium (4-1) | 51-43 | Won 2 |
| » W: Bill Gullickson (10-6) L: Kevin Gross (6-9) S: Rob Murphy (2) | First | -- |
| Wednesday, July 22 |
| » Lost to Phillies (46-47), 5-3 | Veteran's Stadium (4-2) | 51-44 | |
| » W: Shane Rawley (12-5) L: Tom Browning (5-8) S: Steve Bedrosian (27) | First | -- |
| Thursday, July 23 |
| » Defeated Expos (52-42), 8-4 | Stade Olympique (3-0) | 52-44 | |
| » W: Ted Power (8-5) L: Bryn Smith (6-4) | First | -- |
| Friday, July 24 |
| » Lost to Expos (53-42), 3-2 | Stade Olympique (3-1) | 52-45 | |
| » W: Neal Heaton (11-4) L: Guy Hoffman (7-5) S: Tim Burke (9) | First | -- |
| Saturday, July 25 |
| » Lost to Expos (54-42), 4-3 | Stade Olympique (3-2) | 52-46 | Lost 2 |
| » W: Andy McGaffigan (2-1) L: Bill Landrum (3-2) | First | -- |
| Sunday, July 26 |
| » Lost to Expos (55-42), 6-0 | Stade Olympique (3-3) | 52-47 | Lost 3 |
| » W: Floyd Youmans (8-4) L: Bill Gullickson (10-7) | First | -- |
| Tuesday, July 28 |
| » Defeated Padres (36-64), 8-7 | Riverfront Stadium (26-24) | 53-47 | |
| » W: John Franco (7-3) L: Mark Davis (5-6) | First | -- |
| Wednesday, July 29 |
| » Defeated Padres (36-65), 15-5 | Riverfront Stadium (27-24) | 54-47 | Won 2 |
| » W: Rob Murphy (5-3) L: Eric Show (5-12) | First | -- |
| Thursday, July 30 |
| » Lost to Padres (37-65), 12-8 | Riverfront Stadium (27-25) | 54-48 | |
| » W: Jimmy Jones (3-4) L: Guy Hoffman (7-6) | First | -- |
| Friday, July 31 |
| » Defeated Giants (52-51), 9-2 | Riverfront Stadium (28-25) | 55-48 | |
| » W: Ron Robinson (4-3) L: Dave Dravecky (5-9) | First | -- |
| Saturday, August 1 |
| » Lost to Giants (53-51), 7-3 | Riverfront Stadium (28-26) | 55-49 | |
| » W: Mike LaCoss (9-6) L: Bill Gullickson (10-8) | First | -- |
| » Major-league debuts: Jeff Montgomery (Reds) |
| Sunday, August 2 |
| » Defeated Giants (53-52), 5-4 | Riverfront Stadium (29-26) | 56-49 | |
| » W: Jeff Montgomery (1-0) L: Jeff Robinson (6-7) | First | -- |
| Monday, August 3 |
| » Lost to Dodgers (48-57), 7-2 | Riverfront Stadium (29-27) | 56-50 | |
| » W: Orel Hershiser (12-9) L: Ted Power (8-6) | First | -- |
| Tuesday, August 4 |
| » Defeated Dodgers (48-58), 10-4 | Riverfront Stadium (30-27) | 57-50 | |
| » W: Guy Hoffman (8-6) L: Tim Leary (2-7) | First | -- |
| Wednesday, August 5 |
| » Defeated Dodgers (48-59), 6-3 | Riverfront Stadium (31-27) | 58-50 | Won 2 |
| » W: Ron Robinson (5-3) L: Fernando Valenzuela (9-9) S: John Franco (19) | First | -- |
| Friday, August 7 |
| » Lost to Giants (54-55), 3-1 | Candlestick Park (2-2) | 58-51 | |
| » W: Mike LaCoss (10-6) L: Bill Gullickson (10-9) | First | -- |
| Saturday, August 8 |
| » Lost to Giants (55-55), 5-2 | Candlestick Park (2-3) | 58-52 | Lost 2 |
| » W: Atlee Hammaker (7-8) L: Tom Browning (5-9) | First | -- |
| Sunday, August 9 |
| » Lost to Giants (56-55), 3-2 | Candlestick Park (2-4) | 58-53 | Lost 3 |
| » W: Mike Krukow (3-6) L: Ted Power (8-7) S: Don Robinson (13) | First | -- |
| » Lost to Giants (57-55), 5-2 | Candlestick Park (2-5) | 58-54 | Lost 4 |
| » W: Kelly Downs (9-6) L: Guy Hoffman (8-7) S: Craig Lefferts (5) | First | -- |
| Monday, August 10 |
| » Defeated Dodgers (49-62), 4-3 | Dodger Stadium (2-2) | 59-54 | |
| » W: Frank Williams (2-0) L: Fernando Valenzuela (9-10) S: John Franco (20) | First | -- |
| Tuesday, August 11 |
| » Lost to Dodgers (50-62), 7-2 | Dodger Stadium (2-3) | 59-55 | |
| » W: Bob Welch (11-7) L: Jeff Montgomery (1-1) | First | -- |
| Wednesday, August 12 |
| » Lost to Dodgers (51-62), 1-0 | Dodger Stadium (2-4) | 59-56 | Lost 2 |
| » W: Tim Leary (3-7) L: Bill Gullickson (10-10) S: Matt Young (11) | First | -- |
| Thursday, August 13 |
| » Defeated Dodgers (51-63), 5-2 | Dodger Stadium (3-4) | 60-56 | |
| » W: Rob Murphy (6-3) L: Orel Hershiser (12-11) S: John Franco (21) | First | -- |
| Friday, August 14 |
| » Defeated Padres (47-69), 2-0 | San Diego/Jack Murphy Stadium (3-2) | 61-56 | Won 2 |
| » W: Ted Power (9-7) L: Eric Show (6-14) S: John Franco (22) | First | -- |
| » Lost to Padres (48-69), 15-8 | San Diego/Jack Murphy Stadium (3-3) | 61-57 | |
| » W: Greg Booker (1-1) L: Guy Hoffman (8-8) | First | -- |
| Sunday, August 16 |
| » Defeated Padres (48-70), 2-0 | San Diego/Jack Murphy Stadium (4-3) | 62-57 | |
| » W: Ron Robinson (6-3) L: Ed Whitson (10-8) S: John Franco (23) | First | -- |
| Tuesday, August 18 |
| » Lost to Pirates (52-67), 7-4 | Riverfront Stadium (31-28) | 62-58 | |
| » W: Bob Walk (5-1) L: Rob Murphy (6-4) S: Jim Gott (3) | First | -- |
| Wednesday, August 19 |
| » Lost to Pirates (53-67), 10-9 | Riverfront Stadium (31-29) | 62-59 | Lost 2 |
| » W: Doug Drabek (5-10) L: Tom Browning (5-10) | Second | 1 out |
| Thursday, August 20 |
| » Defeated Pirates (53-68), 5-3 | Riverfront Stadium (32-29) | 63-59 | |
| » W: Ted Power (10-7) L: Mike Dunne (7-5) S: John Franco (24) | First | -- |
| Friday, August 21 |
| » Lost to Cardinals (71-50), 2-1 | Riverfront Stadium (32-30) | 63-60 | |
| » W: John Tudor (4-2) L: Guy Hoffman (8-9) S: Todd Worrell (26) | Second | 1 out |
| Saturday, August 22 |
| » Lost to Cardinals (72-50), 9-7 | Riverfront Stadium (32-31) | 63-61 | Lost 2 |
| » W: Pat Perry (4-2) L: Rob Murphy (6-5) S: Ken Dayley (3) | Third | 1 out |
| Sunday, August 23 |
| » Lost to Cardinals (73-50), 12-6 | Riverfront Stadium (32-32) | 63-62 | Lost 3 |
| » W: Danny Cox (9-4) L: Bill Gullickson (10-11) | Third | 2 out |
| Monday, August 24 |
| » Lost to Pirates (54-71), 5-4 | Three Rivers Stadium (3-1) | 63-63 | Lost 4 |
| » W: Doug Drabek (6-10) L: Tom Browning (5-11) S: Jim Gott (4) | Third | 3 out |
| Tuesday, August 25 |
| » Lost to Pirates (55-71), 1-0 | Three Rivers Stadium (3-2) | 63-64 | Lost 5 |
| » W: Mike Dunne (8-5) L: Ted Power (10-8) | Third | 4 out |
| Wednesday, August 26 |
| » Lost to Pirates (56-71), 6-5 | Three Rivers Stadium (3-3) | 63-65 | Lost 6 |
| » W: Jeff Robinson (7-8) L: John Franco (7-4) | Third | 5 out |
| Friday, August 28 |
| » Lost to Cubs (64-63), 6-5 | Riverfront Stadium (32-33) | 63-66 | Lost 7 |
| » W: Lee Smith (4-7) L: John Franco (7-5) | Third | 5 out |
| Saturday, August 29 |
| » Defeated Cubs (64-64), 4-1 | Riverfront Stadium (33-33) | 64-66 | |
| » W: Tom Browning (6-11) L: Scott Sanderson (7-7) | Third | 5 out |
| Sunday, August 30 |
| » Lost to Cubs (65-64), 3-1 | Riverfront Stadium (33-34) | 64-67 | |
| » W: Ed Lynch (2-8) L: Dennis Rasmussen (9-8) S: Lee Smith (31) | Third | 5 out |
| Monday, August 31 |
| » Lost to Cardinals (79-51), 4-0 | Busch Stadium II (0-4) | 64-68 | Lost 2 |
| » W: John Tudor (5-2) L: Ted Power (10-9) | Third | 6 out |
| Tuesday, September 1 |
| » Defeated Cardinals (79-52), 7-4 | Busch Stadium II (1-4) | 65-68 | |
| » W: Guy Hoffman (9-9) L: Ricky Horton (6-3) | Third | 6 out |
| Wednesday, September 2 |
| » Defeated Cardinals (79-53), 3-1 | Busch Stadium II (2-4) | 66-68 | Won 2 |
| » W: Frank Williams (3-0) L: Danny Cox (9-5) S: John Franco (25) | Third | 5 out |
| Friday, September 4 |
| » Defeated Cubs (67-66), 4-3 | Wrigley Field (2-2) | 67-68 | Won 3 |
| » W: Frank Williams (4-0) L: Lee Smith (4-8) S: John Franco (26) | Third | 5 out |
| » Major-league debuts: Jeff Treadway (Reds) |
| Saturday, September 5 |
| » Defeated Cubs (67-67), 10-5 | Wrigley Field (3-2) | 68-68 | Won 4 |
| » W: Dennis Rasmussen (10-8) L: Ed Lynch (2-9) | Third | 5 out |
| » Major-league debuts: Damon Berryhill (Cubs) |
| Sunday, September 6 |
| » Lost to Cubs (68-67), 3-1 | Wrigley Field (3-3) | 68-69 | |
| » W: Les Lancaster (6-1) L: Ted Power (10-10) S: Lee Smith (34) | Third | 6 out |
| Monday, September 7 |
| » Defeated Dodgers (57-80), 3-2 | Riverfront Stadium (34-34) | 69-69 | |
| » W: Tom Hume (2-4) L: Brian Holton (3-2) | Third | 5 out |
| Tuesday, September 8 |
| » Lost to Dodgers (58-80), 5-3 | Riverfront Stadium (34-35) | 69-70 | |
| » W: Orel Hershiser (14-13) L: Ron Robinson (6-4) S: Alejandro Pena (3) | Third | 6 out |
| Wednesday, September 9 |
| » Defeated Dodgers (58-81), 4-1 | Riverfront Stadium (35-35) | 70-70 | |
| » W: Tom Browning (7-11) L: Tim Belcher (1-1) | Third | 5 out |
| Friday, September 11 |
| » Defeated Giants (75-66), 4-3 | Riverfront Stadium (36-35) | 71-70 | Won 2 |
| » W: Dennis Rasmussen (11-8) L: Dave Dravecky (9-10) S: Rob Murphy (3) | Second | 4 out |
| Saturday, September 12 |
| » Lost to Giants (76-66), 7-1 | Riverfront Stadium (36-36) | 71-71 | |
| » W: Rick Reuschel (12-7) L: Ted Power (10-11) | Second | 5 out |
| Sunday, September 13 |
| » Lost to Giants (77-66), 6-1 | Riverfront Stadium (36-37) | 71-72 | Lost 2 |
| » W: Mike LaCoss (12-10) L: Tom Browning (7-12) S: Don Robinson (17) | Second | 6 out |
| Monday, September 14 |
| » Lost to Braves (62-80), 3-2 | Atlanta-Fulton County Stadium (4-4) | 71-73 | Lost 3 |
| » W: Tom Glavine (2-3) L: Guy Hoffman (9-10) S: Jim Acker (11) | Third | 7 out |
| Tuesday, September 15 |
| » Defeated Braves (62-81), 21-6 | Atlanta-Fulton County Stadium (5-4) | 72-73 | |
| » W: Ron Robinson (7-4) L: David Palmer (8-11) | Second | 7 out |
| Wednesday, September 16 |
| Former Red Kermit Wahl dies in Tucson, AZ at the age of 65. |
| Thursday, September 17 |
| » Defeated Dodgers (61-84), 3-2 | Dodger Stadium (4-4) | 73-73 | Won 2 |
| » W: John Franco (8-5) L: Fernando Valenzuela (12-14) | Second | 8 out |
| » Lost to Dodgers (62-84), 6-3 | Dodger Stadium (4-5) | 73-74 | |
| » W: Bob Welch (12-9) L: Ted Power (10-12) S: Alejandro Pena (5) | Second | 8 out |
| Saturday, September 19 |
| » Lost to Giants (82-66), 5-1 | Candlestick Park (2-6) | 73-75 | Lost 2 |
| » W: Mike LaCoss (13-10) L: Tom Browning (7-13) S: Don Robinson (18) | Second | 9 out |
| Sunday, September 20 |
| » Defeated Giants (82-67), 10-6 | Candlestick Park (3-6) | 74-75 | |
| » W: Rob Murphy (7-5) L: Don Robinson (10-7) | Second | 8 out |
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