| Monday, January 8 |
| Future Red Brian Johnson is born in Oakland, CA. |
| Wednesday, January 24 |
| Future Red Ross Powell is born in Grand Rapids, MI. |
| Wednesday, February 14 |
| Future Red Scott Scudder is born in Paris, TX. |
| Friday, February 23 |
| Former Red Hank Schreiber dies in Indianapolis, IN at the age of 77. |
| Thursday, February 29 |
| Former Red Lena Blackburne dies in Riverside, NJ at the age of 82. |
| Monday, March 4 |
| Future Red Giovanni Carrara is born in Edo Anzoategui, Venezuela. Future Red Brian Hunter is born in Torrance, CA. |
| Wednesday, March 20 |
| Former Red Clyde Shoun dies in Mountain Home, TN at the age of 57. |
| Wednesday, April 10 |
| » Defeated Cubs (0-1), 9-4 | Crosley Field (1-0) | 1-0 | |
| » Starters: Joe Niekro vs Milt Pappas | First | -- |
| » Major-league debuts: Jose Arcia (Cubs) |
| Thursday, April 11 |
| » Lost to Cubs (1-1), 10-3 | Crosley Field (1-1) | 1-1 | |
| » Starters: Fergie Jenkins vs Mel Queen | Second | 1 out |
| Friday, April 12 |
| » Lost to Braves (1-2), 4-3 | Atlanta-Fulton County Stadium (0-1) | 1-2 | Lost 2 |
| » Starters: John Tsitouris vs Phil Niekro | Fourth | 2 out |
| Saturday, April 13 |
| » Lost to Braves (2-2), 2-1 | Atlanta-Fulton County Stadium (0-2) | 1-3 | Lost 3 |
| » Starters: George Culver vs Ken Johnson | Sixth | 3 out |
| Tuesday, April 16 |
| » Defeated Cubs (2-3), 9-8 | Wrigley Field (1-0) | 2-3 | |
| » Starters: Gerry Arrigo vs Fergie Jenkins | Fourth | 2½ out |
| Wednesday, April 17 |
| » Defeated Cardinals (5-2), 4-3 | Crosley Field (2-1) | 3-3 | Won 2 |
| » Starters: Steve Carlton vs Milt Pappas | Third | 1½ out |
| Thursday, April 18 |
| » Defeated Cardinals (5-3), 4-3 | Crosley Field (3-1) | 4-3 | Won 3 |
| » Starters: Ray Washburn vs George Culver | Fourth | 1 out |
| Friday, April 19 |
| » Lost to Braves (5-4), 3-0 | Crosley Field (3-2) | 4-4 | |
| » Starters: Jim Britton vs John Tsitouris | Fifth | 1½ out |
| Saturday, April 20 |
| » Defeated Braves (5-5), 2-1 | Crosley Field (4-2) | 5-4 | |
| » Starters: Pat Jarvis vs Gerry Arrigo | Third | 1 out |
| Sunday, April 21 |
| » Lost to Braves (6-5), 5-2 | Crosley Field (4-3) | 5-5 | |
| » Starters: Dick Kelley vs Milt Pappas | Fifth | 1½ out |
| Tuesday, April 23 |
| » Lost to Cardinals (8-4), 4-2 | Busch Stadium II (0-1) | 5-6 | Lost 2 |
| » Starters: George Culver vs Steve Carlton | Sixth | 2½ out |
| Wednesday, April 24 |
| » Lost to Cardinals (9-4), 7-0 | Busch Stadium II (0-2) | 5-7 | Lost 3 |
| » Starters: John Tsitouris vs Ray Washburn | Eighth | 3½ out |
| Friday, April 26 |
| » Defeated Mets (5-8), 3-1 | Crosley Field (5-3) | 6-7 | |
| » Starters: Tom Seaver vs Gerry Arrigo | Sixth | 3½ out |
| Saturday, April 27 |
| » Defeated Mets (5-9), 5-3 | Crosley Field (6-3) | 7-7 | Won 2 |
| » Starters: Nolan Ryan vs Milt Pappas | Fourth | 3½ out |
| Sunday, April 28 |
| » Lost to Mets (6-9), 6-5 | Crosley Field (6-4) | 7-8 | |
| » Starters: Jerry Koosman vs George Culver | Fourth | 4½ out |
| Monday, April 29 |
| » Defeated Astros (6-10), 17-2 | Astrodome (1-0) | 8-8 | |
| » Starters: Jim Maloney vs Jim Ray | Fourth | 3½ out |
| Tuesday, April 30 |
| » Lost to Astros (7-10), 3-0 | Astrodome (1-1) | 8-9 | |
| » Starters: Gerry Arrigo vs Larry Dierker | Fifth | 4½ out |
| Wednesday, May 1 |
| » Defeated Giants (10-8), 6-5 | Candlestick Park (1-0) | 9-9 | |
| » Starters: Milt Pappas vs Mike McCormick | Fourth | 4½ out |
| Thursday, May 2 |
| » Defeated Giants (10-9), 6-2 | Candlestick Park (2-0) | 10-9 | Won 2 |
| » Starters: George Culver vs Gaylord Perry | Second | 3½ out |
| Friday, May 3 |
| » Lost to Dodgers (11-10), 4-3 | Dodger Stadium (0-1) | 10-10 | |
| » Starters: Jim Maloney vs Don Sutton | Fourth | 3½ out |
| Saturday, May 4 |
| » Defeated Dodgers (11-11), 2-0 | Dodger Stadium (1-1) | 11-10 | |
| » Starters: Gerry Arrigo vs Bill Singer | Second | 3½ out |
| Sunday, May 5 |
| » Defeated Dodgers (11-12), 3-2 | Dodger Stadium (2-1) | 12-10 | Won 2 |
| » Starters: Milt Pappas vs Don Drysdale | Second | 2½ out |
| Monday, May 6 |
| » Defeated Phillies (11-12), 10-1 | Crosley Field (7-4) | 13-10 | Won 3 |
| » Starters: Woodie Fryman vs George Culver | Second | 2½ out |
| Tuesday, May 7 |
| » Lost to Phillies (12-12), 5-2 | Crosley Field (7-5) | 13-11 | |
| » Starters: Rick Wise vs Jim Maloney | Second | 2½ out |
| Wednesday, May 8 |
| » Lost to Phillies (13-12), 6-2 | Crosley Field (7-6) | 13-12 | Lost 2 |
| » Starters: Chris Short vs Gerry Arrigo | Second | 3½ out |
| Thursday, May 9 |
| » Lost to Phillies (14-12), 7-3 | Crosley Field (7-7) | 13-13 | Lost 3 |
| » Starters: Larry Jackson vs Milt Pappas | Third | 4 out |
| Future Red Glenn Sutko is born in Atlanta, GA. |
| Friday, May 10 |
| » Lost to Giants (14-13), 6-4 | Crosley Field (7-8) | 13-14 | Lost 4 |
| » Starters: Gaylord Perry vs George Culver | Fifth | 4½ out |
| Saturday, May 11 |
| » Lost to Giants (15-13), 5-4 | Crosley Field (7-9) | 13-15 | Lost 5 |
| » Starters: Juan Marichal vs Jim Maloney | Sixth | 5½ out |
| Sunday, May 12 |
| » Defeated Giants (15-14), 3-1 | Crosley Field (8-9) | 14-15 | |
| » Starters: Ray Sadecki vs Gerry Arrigo | Sixth | 4½ out |
| Tuesday, May 14 |
| » Lost to Mets (13-16), 3-2 | Shea Stadium (0-1) | 14-16 | |
| » Starters: Milt Pappas vs Nolan Ryan | Seventh | 5½ out |
| Wednesday, May 15 |
| » Defeated Mets (13-17), 3-0 | Shea Stadium (1-1) | 15-16 | |
| » Starters: George Culver vs Jerry Koosman | Fifth | 5½ out |
| Thursday, May 16 |
| » Lost to Mets (14-17), 2-1 | Shea Stadium (1-2) | 15-17 | |
| » Starters: Gerry Arrigo vs Tom Seaver | Sixth | 5½ out |
| Friday, May 17 |
| » Defeated Pirates (15-16), 3-2 | Forbes Field (1-0) | 16-17 | |
| » Starters: Jim Maloney vs Al McBean | Fifth | 4½ out |
| Saturday, May 18 |
| » Defeated Pirates (15-17), 8-3 | Forbes Field (2-0) | 17-17 | Won 2 |
| » Starters: Mel Queen vs Jim Bunning | Fifth | 3½ out |
| Sunday, May 19 |
| » Defeated Pirates (15-18), 9-3 | Forbes Field (3-0) | 18-17 | Won 3 |
| » Starters: George Culver vs Steve Blass | Fourth | 2½ out |
| Monday, May 20 |
| » Defeated Astros (15-21), 3-2 | Crosley Field (9-9) | 19-17 | Won 4 |
| » Starters: Don Wilson vs Gerry Arrigo | Fourth | 2½ out |
| Tuesday, May 21 |
| » Lost to Astros (16-21), 8-2 | Crosley Field (9-10) | 19-18 | |
| » Starters: Larry Dierker vs Milt Pappas | Third | 2½ out |
| Future Red Steve Pegues is born in Pontotoc, MS. |
| Wednesday, May 22 |
| » Lost to Astros (17-21), 1-0 | Crosley Field (9-11) | 19-19 | Lost 2 |
| » Starters: Dave Giusti vs Jim Maloney | Fifth | 2½ out |
| Friday, May 24 |
| » Lost to Pirates (17-20), 8-5 | Crosley Field (9-12) | 19-20 | Lost 3 |
| » Starters: Steve Blass vs George Culver | Seventh | 4 out |
| Saturday, May 25 |
| » Lost to Pirates (18-20), 5-4 | Crosley Field (9-13) | 19-21 | Lost 4 |
| » Starters: Bob Veale vs Gerry Arrigo | Seventh | 4 out |
| Sunday, May 26 |
| » Tied Pirates, 8-8 | Crosley Field (9-13) | 19-21 | |
| » Starters: Al McBean vs Mel Queen | Seventh | 3½ out |
| Tuesday, May 28 |
| » Defeated Dodgers (22-24), 7-0 | Crosley Field (10-13) | 20-21 | |
| » Starters: Don Sutton vs Jim Maloney | Sixth | 3½ out |
| Wednesday, May 29 |
| » Defeated Dodgers (22-25), 6-5 | Crosley Field (11-13) | 21-21 | Won 2 |
| » Starters: Mike Kekich vs Milt Pappas | Sixth | 3½ out |
| Thursday, May 30 |
| » Lost to Dodgers (23-25), 5-3 | Crosley Field (11-14) | 21-22 | |
| » Starters: Claude Osteen vs Gerry Arrigo | Sixth | 3½ out |
| Friday, May 31 |
| » Defeated Phillies (21-20), 5-4 | Shibe Park (1-0) | 22-22 | |
| » Starters: Gary Nolan vs Larry Jackson | Fifth | 2½ out |
| Saturday, June 1 |
| » Lost to Phillies (22-20), 12-0 | Shibe Park (1-1) | 22-23 | |
| » Starters: Milt Pappas vs Woodie Fryman | Sixth | 2½ out |
| Sunday, June 2 |
| » Defeated Phillies (22-21), 5-3 | Shibe Park (2-1) | 23-23 | |
| » Starters: Jim Maloney vs Rick Wise | Sixth | 3 out |
| Monday, June 3 |
| » Lost to Braves (27-22), 3-2 | Crosley Field (11-15) | 23-24 | |
| » Starters: Ken Johnson vs George Culver | Seventh | 4 out |
| Tuesday, June 4 |
| » Defeated Braves (27-23), 3-1 | Crosley Field (12-15) | 24-24 | |
| » Starters: Ron Reed vs Gerry Arrigo | Seventh | 4 out |
| Wednesday, June 5 |
| » Defeated Braves (27-24), 10-0 | Crosley Field (13-15) | 25-24 | Won 2 |
| » Starters: Phil Niekro vs Gary Nolan | Sixth | 4 out |
| Friday, June 7 |
| » Defeated Cardinals (31-22), 4-2 | Crosley Field (14-15) | 26-24 | Won 3 |
| » Starters: Dick Hughes vs Jim Maloney | Fifth | 3½ out |
| Saturday, June 8 |
| » Lost to Cardinals (32-22), 7-2 | Crosley Field (14-16) | 26-25 | |
| » Starters: Nelson Briles vs George Culver | Fifth | 4½ out |
| Sunday, June 9 |
| » Lost to Cardinals (33-22), 10-8 | Crosley Field (14-17) | 26-26 | Lost 2 |
| » Starters: Steve Carlton vs Gerry Arrigo | Fifth | 4½ out |
| » Defeated Cardinals (33-23), 7-6 | Crosley Field (15-17) | 27-26 | |
| » Starters: Ray Washburn vs Billy McCool | Fifth | 4½ out |
| Monday, June 10 |
| » Lost to Cubs (27-28), 4-3 | Wrigley Field (1-1) | 27-27 | |
| » Starters: Gary Nolan vs Ken Holtzman | Sixth | 5½ out |
| Tuesday, June 11 |
| » Defeated Cubs (27-29), 9-7 | Wrigley Field (2-1) | 28-27 | |
| » Starters: George Culver vs Joe Niekro | Fifth | 5½ out |
| Wednesday, June 12 |
| » Lost to Cubs (28-29), 4-1 | Wrigley Field (2-2) | 28-28 | |
| » Starters: Jim Maloney vs Fergie Jenkins | Fifth | 5½ out |
| Thursday, June 13 |
| » Lost to Cubs (29-29), 8-4 | Wrigley Field (2-3) | 28-29 | Lost 2 |
| » Starters: Tony Cloninger vs Frank Reberger | Seventh | 6½ out |
| Friday, June 14 |
| » Defeated Cardinals (36-25), 7-0 | Busch Stadium II (1-2) | 29-29 | |
| » Starters: Billy McCool vs Larry Jaster | Sixth | 5½ out |
| Saturday, June 15 |
| » Lost to Cardinals (37-25), 2-0 | Busch Stadium II (1-3) | 29-30 | |
| » Starters: Gary Nolan vs Bob Gibson | Seventh | 6½ out |
| Former Red Sam Crawford dies in Hollywood, CA at the age of 89. |
| Sunday, June 16 |
| » Lost to Cardinals (38-25), 4-2 | Busch Stadium II (1-4) | 29-31 | Lost 2 |
| » Starters: George Culver vs Ray Washburn | Seventh | 7½ out |
| Monday, June 17 |
| » Lost to Braves (33-29), 3-2 | Atlanta-Fulton County Stadium (0-3) | 29-32 | Lost 3 |
| » Starters: Jim Maloney vs Pat Jarvis | Ninth | 8 out |
| Tuesday, June 18 |
| » Defeated Braves (33-30), 7-5 | Atlanta-Fulton County Stadium (1-3) | 30-32 | |
| » Starters: Tony Cloninger vs Ken Johnson | Fifth | 8 out |
| Wednesday, June 19 |
| » Lost to Braves (34-30), 3-1 | Atlanta-Fulton County Stadium (1-4) | 30-33 | |
| » Starters: Billy McCool vs Ron Reed | Seventh | 9 out |
| Thursday, June 20 |
| » Lost to Braves (35-30), 3-1 | Atlanta-Fulton County Stadium (1-5) | 30-34 | Lost 2 |
| » Starters: Gary Nolan vs Milt Pappas | Eighth | 10 out |
| Friday, June 21 |
| » Lost to Cubs (31-34), 3-2 | Crosley Field (15-18) | 30-35 | Lost 3 |
| » Starters: Joe Niekro vs George Culver | Ninth | 11 out |
| Saturday, June 22 |
| » Defeated Cubs (31-35), 7-1 | Crosley Field (16-18) | 31-35 | |
| » Starters: Bill Hands vs Jim Maloney | Eighth | 11 out |
| Sunday, June 23 |
| » Defeated Cubs (31-36), 9-8 | Crosley Field (17-18) | 32-35 | Won 2 |
| » Starters: Ken Holtzman vs Tony Cloninger | Seventh | 10 out |
| » Defeated Cubs (31-37), 4-3 | Crosley Field (18-18) | 33-35 | Won 3 |
| » Starters: Fergie Jenkins vs Billy McCool | Seventh | 10 out |
| Monday, June 24 |
| » Defeated Mets (33-35), 6-5 | Crosley Field (19-18) | 34-35 | Won 4 |
| » Starters: Jerry Koosman vs Gary Nolan | Sixth | 9½ out |
| Tuesday, June 25 |
| » Lost to Mets (34-35), 4-0 | Crosley Field (19-19) | 34-36 | |
| » Starters: Tom Seaver vs George Culver | Seventh | 9½ out |
| Wednesday, June 26 |
| » Defeated Mets (34-36), 7-6 | Crosley Field (20-19) | 35-36 | |
| » Starters: Dick Selma vs Jim Maloney | Sixth | 9 out |
| Friday, June 28 |
| » Lost to Giants (40-35), 4-3 | Candlestick Park (2-1) | 35-37 | |
| » Starters: Tony Cloninger vs Gaylord Perry | Seventh | 10 out |
| Saturday, June 29 |
| » Defeated Giants (40-36), 5-0 | Candlestick Park (3-1) | 36-37 | |
| » Starters: Gary Nolan vs Ray Sadecki | Sixth | 9 out |
| Sunday, June 30 |
| » Defeated Giants (40-37), 5-3 | Candlestick Park (4-1) | 37-37 | Won 2 |
| » Starters: George Culver vs Mike McCormick | Sixth | 8 out |
| Monday, July 1 |
| » Defeated Astros (32-44), 3-2 | Astrodome (2-1) | 38-37 | Won 3 |
| » Starters: Jim Maloney vs Dave Giusti | Fourth | 8 out |
| Tuesday, July 2 |
| » Lost to Astros (33-44), 2-0 | Astrodome (2-2) | 38-38 | |
| » Starters: Gerry Arrigo vs Denny Lemaster | Fifth | 9 out |
| Wednesday, July 3 |
| » Defeated Astros (33-45), 9-7 | Astrodome (3-2) | 39-38 | |
| » Starters: Tony Cloninger vs Larry Dierker | Fifth | 9 out |
| Thursday, July 4 |
| » Defeated Astros (33-46), 7-4 | Astrodome (4-2) | 40-38 | Won 2 |
| » Starters: Gary Nolan vs Don Wilson | Fourth | 9 out |
| Friday, July 5 |
| » Defeated Dodgers (40-43), 2-0 | Dodger Stadium (3-1) | 41-38 | Won 3 |
| » Starters: George Culver vs Don Drysdale | Second | 9 out |
| Saturday, July 6 |
| » Defeated Dodgers (40-44), 3-2 | Dodger Stadium (4-1) | 42-38 | Won 4 |
| » Starters: Jim Maloney vs Bill Singer | Second | 9 out |
| Sunday, July 7 |
| » Lost to Dodgers (41-44), 6-5 | Dodger Stadium (4-2) | 42-39 | |
| » Starters: Gerry Arrigo vs Mike Kekich | Second | 10 out |
| Thursday, July 11 |
| » Lost to Giants (43-42), 7-1 | Crosley Field (20-20) | 42-40 | Lost 2 |
| » Starters: Gaylord Perry vs Jim Maloney | Third | 10½ out |
| » Major-league debuts: Hal McRae (Reds) |
| Friday, July 12 |
| » Lost to Giants (44-42), 11-4 | Crosley Field (20-21) | 42-41 | Lost 3 |
| » Starters: Ray Sadecki vs Gary Nolan | Fourth | 11½ out |
| Saturday, July 13 |
| » Lost to Giants (45-42), 8-1 | Crosley Field (20-22) | 42-42 | Lost 4 |
| » Starters: Juan Marichal vs George Culver | Fifth | 12½ out |
| Sunday, July 14 |
| » Lost to Astros (37-51), 5-4 | Crosley Field (20-23) | 42-43 | Lost 5 |
| » Starters: Dave Giusti vs Tony Cloninger | Fifth | 14 out |
| » Lost to Astros (38-51), 6-1 | Crosley Field (20-24) | 42-44 | Lost 6 |
| » Starters: Don Wilson vs Gerry Arrigo | Fifth | 14 out |
| Tuesday, July 16 |
| » Lost to Dodgers (42-49), 9-2 | Crosley Field (20-25) | 42-45 | Lost 7 |
| » Starters: Don Drysdale vs Jim Maloney | Sixth | 15½ out |
| Wednesday, July 17 |
| » Defeated Dodgers (42-50), 7-4 | Crosley Field (21-25) | 43-45 | |
| » Starters: Bill Singer vs Gary Nolan | Fifth | 15 out |
| Friday, July 19 |
| » Defeated Phillies (46-43), 9-2 | Crosley Field (22-25) | 44-45 | Won 2 |
| » Starters: Rick Wise vs George Culver | Fifth | 13½ out |
| Saturday, July 20 |
| » Defeated Phillies (46-44), 9-3 | Crosley Field (23-25) | 45-45 | Won 3 |
| » Starters: Larry Jackson vs Gerry Arrigo | Fifth | 13½ out |
| Sunday, July 21 |
| » Defeated Phillies (46-45), 12-6 | Crosley Field (24-25) | 46-45 | Won 4 |
| » Starters: Chris Short vs Tony Cloninger | Fourth | 13 out |
| Tuesday, July 23 |
| » Defeated Pirates (45-50), 7-6 | Forbes Field (4-0) | 47-45 | Won 5 |
| » Starters: Jim Maloney vs Al McBean | Third | 13½ out |
| Thursday, July 25 |
| » Defeated Pirates (45-51), 2-0 | Forbes Field (5-0) | 48-45 | Won 6 |
| » Starters: George Culver vs Bob Veale | Third | 14 out |
| Friday, July 26 |
| » Lost to Mets (48-54), 2-0 | Shea Stadium (1-3) | 48-46 | |
| » Starters: Tony Cloninger vs Jerry Koosman | Third | 14½ out |
| Saturday, July 27 |
| » Lost to Mets (49-54), 5-2 | Shea Stadium (1-4) | 48-47 | Lost 2 |
| » Starters: Gerry Arrigo vs Don Cardwell | Third | 15½ out |
| Sunday, July 28 |
| » Defeated Mets (49-55), 5-3 | Shea Stadium (2-4) | 49-47 | |
| » Starters: Jim Maloney vs Tom Seaver | Third | 14½ out |
| Monday, July 29 |
| » Defeated Phillies (48-52), 7-6 | Shibe Park (3-1) | 50-47 | Won 2 |
| » Starters: Gary Nolan vs Jerry Johnson | Third | 14 out |
| » Defeated Phillies (48-53), 6-1 | Shibe Park (4-1) | 51-47 | Won 3 |
| » Starters: George Culver vs Chris Short | Third | 14 out |
| Tuesday, July 30 |
| » Defeated Phillies (48-54), 5-2 | Shibe Park (5-1) | 52-47 | Won 4 |
| » Starters: Tony Cloninger vs Rick Wise | Second | 14 out |
| Wednesday, July 31 |
| » Defeated Pirates (50-54), 8-2 | Crosley Field (25-25) | 53-47 | Won 5 |
| » Starters: Bob Moose vs Gerry Arrigo | Second | 14½ out |
| » Lost to Pirates (51-54), 10-1 | Crosley Field (25-26) | 53-48 | |
| » Starters: Dock Ellis vs Jay Ritchie | Second | 14½ out |
| Thursday, August 1 |
| » Lost to Pirates (52-54), 6-1 | Crosley Field (25-27) | 53-49 | Lost 2 |
| » Starters: Tommie Sisk vs Jim Maloney | Third | 15½ out |
| Saturday, August 3 |
| » Lost to Braves (57-51), 1-0 | Atlanta-Fulton County Stadium (1-6) | 53-50 | Lost 3 |
| » Starters: George Culver vs Ron Reed | Third | 14½ out |
| » Defeated Braves (57-52), 5-3 | Atlanta-Fulton County Stadium (2-6) | 54-50 | |
| » Starters: Gary Nolan vs Pat Jarvis | Third | 14½ out |
| Sunday, August 4 |
| » Defeated Braves (57-53), 6-4 | Atlanta-Fulton County Stadium (3-6) | 55-50 | Won 2 |
| » Starters: Tony Cloninger vs Phil Niekro | Third | 13½ out |
| Monday, August 5 |
| » Lost to Cardinals (72-39), 3-2 | Busch Stadium II (1-5) | 55-51 | |
| » Starters: Gerry Arrigo vs Nelson Briles | Third | 14½ out |
| Tuesday, August 6 |
| » Defeated Cardinals (72-40), 5-0 | Busch Stadium II (2-5) | 56-51 | |
| » Starters: Jim Maloney vs Steve Carlton | Third | 13½ out |
| Wednesday, August 7 |
| » Lost to Cardinals (73-40), 3-1 | Busch Stadium II (2-6) | 56-52 | |
| » Starters: George Culver vs Mel Nelson | Third | 14½ out |
| Thursday, August 8 |
| » Lost to Cardinals (74-40), 1-0 | Busch Stadium II (2-7) | 56-53 | Lost 2 |
| » Starters: Tony Cloninger vs Ray Washburn | Fifth | 15½ out |
| Friday, August 9 |
| » Defeated Cubs (60-55), 7-3 | Crosley Field (26-27) | 57-53 | |
| » Starters: Fergie Jenkins vs Bob Lee | Third | 15½ out |
| Saturday, August 10 |
| » Lost to Cubs (61-55), 8-5 | Crosley Field (26-28) | 57-54 | |
| » Starters: Joe Niekro vs Gerry Arrigo | Third | 16½ out |
| Sunday, August 11 |
| » Lost to Cubs (62-55), 8-5 | Crosley Field (26-29) | 57-55 | Lost 2 |
| » Starters: Ken Holtzman vs Jim Maloney | Fifth | 16½ out |
| Monday, August 12 |
| » Lost to Braves (61-57), 9-2 | Crosley Field (26-30) | 57-56 | Lost 3 |
| » Starters: George Stone vs George Culver | Fifth | 16½ out |
| Tuesday, August 13 |
| » Defeated Braves (61-58), 9-8 | Crosley Field (27-30) | 58-56 | |
| » Starters: Ron Reed vs Tony Cloninger | Fifth | 15½ out |
| Wednesday, August 14 |
| » Defeated Braves (61-59), 7-4 | Crosley Field (28-30) | 59-56 | Won 2 |
| » Starters: Phil Niekro vs Gerry Arrigo | Fourth | 15½ out |
| Friday, August 16 |
| » Defeated Cubs (64-58), 11-7 | Wrigley Field (3-3) | 60-56 | Won 3 |
| » Starters: Jim Maloney vs Bill Hands | Fourth | 15 out |
| Saturday, August 17 |
| » Defeated Cubs (64-59), 4-0 | Wrigley Field (4-3) | 61-56 | Won 4 |
| » Starters: Tony Cloninger vs Fergie Jenkins | Third | 14 out |
| Sunday, August 18 |
| » Defeated Cubs (64-60), 2-1 | Wrigley Field (5-3) | 62-56 | Won 5 |
| » Starters: George Culver vs Rich Nye | Second | 13½ out |
| » Defeated Cubs (64-61), 6-3 | Wrigley Field (6-3) | 63-56 | Won 6 |
| » Starters: Gary Nolan vs Joe Niekro | Second | 13½ out |
| Monday, August 19 |
| » Defeated Pirates (59-65), 8-3 | Crosley Field (29-30) | 64-56 | Won 7 |
| » Starters: Jim Bunning vs Gerry Arrigo | Second | 13½ out |
| Tuesday, August 20 |
| » Lost to Pirates (60-65), 8-3 | Crosley Field (29-31) | 64-57 | |
| » Starters: Dock Ellis vs Jay Ritchie | Second | 13½ out |
| Wednesday, August 21 |
| » Lost to Pirates (61-65), 19-1 | Crosley Field (29-32) | 64-58 | Lost 2 |
| » Starters: Steve Blass vs Jim Maloney | Fourth | 14½ out |
| Thursday, August 22 |
| » Defeated Pirates (61-66), 7-5 | Crosley Field (30-32) | 65-58 | |
| » Starters: Al McBean vs Tony Cloninger | Third | 13½ out |
| Former Red Heinie Groh dies in Cincinnati, OH at the age of 79. |
| Friday, August 23 |
| » Defeated Mets (58-72), 4-2 | Crosley Field (31-32) | 66-58 | Won 2 |
| » Starters: Don Cardwell vs Gary Nolan | Third | 13½ out |
| Saturday, August 24 |
| » Defeated Mets (58-73), 10-7 | Crosley Field (32-32) | 67-58 | Won 3 |
| » Starters: Jerry Koosman vs Gerry Arrigo | Third | 12½ out |
| Sunday, August 25 |
| » Lost to Mets (59-73), 7-1 | Crosley Field (32-33) | 67-59 | |
| » Starters: Tom Seaver vs George Culver | Third | 13½ out |
| Monday, August 26 |
| » Defeated Phillies (60-69), 6-5 | Crosley Field (33-33) | 68-59 | |
| » Starters: Chris Short vs Jim Maloney | Third | 12½ out |
| Tuesday, August 27 |
| » Defeated Phillies (60-70), 10-0 | Crosley Field (34-33) | 69-59 | Won 2 |
| » Starters: Rick Wise vs Tony Cloninger | Third | 11½ out |
| Wednesday, August 28 |
| » Defeated Mets (61-74), 8-3 | Shea Stadium (3-4) | 70-59 | Won 3 |
| » Starters: Gerry Arrigo vs Jerry Koosman | Second | 11 out |
| » Defeated Mets (61-75), 5-2 | Shea Stadium (4-4) | 71-59 | Won 4 |
| » Starters: Gary Nolan vs Don Cardwell | Second | 11 out |
| Thursday, August 29 |
| » Lost to Mets (62-75), 2-0 | Shea Stadium (4-5) | 71-60 | |
| » Starters: George Culver vs Cal Koonce | Second | 12 out |
| Friday, August 30 |
| » Lost to Phillies (61-73), 7-4 | Shibe Park (5-2) | 71-61 | Lost 2 |
| » Starters: Jim Maloney vs Chris Short | Second | 12 out |
| Saturday, August 31 |
| » Lost to Phillies (62-73), 3-2 | Shibe Park (5-3) | 71-62 | Lost 3 |
| » Starters: Tony Cloninger vs Rick Wise | Third | 13 out |
| Sunday, September 1 |
| » Lost to Phillies (63-73), 4-3 | Shibe Park (5-4) | 71-63 | Lost 4 |
| » Starters: Gerry Arrigo vs Jerry Johnson | Third | 14 out |
| Monday, September 2 |
| » Lost to Cardinals (88-51), 1-0 | Crosley Field (34-34) | 71-64 | Lost 5 |
| » Starters: Bob Gibson vs Gary Nolan | Third | 15 out |
| Tuesday, September 3 |
| » Lost to Cardinals (89-51), 5-3 | Crosley Field (34-35) | 71-65 | Lost 6 |
| » Starters: Ray Washburn vs George Culver | Third | 16 out |
| » Major-league debuts: Dan McGinn (Reds) |
| Wednesday, September 4 |
| » Defeated Cardinals (89-52), 8-3 | Crosley Field (35-35) | 72-65 | |
| » Starters: Nelson Briles vs Jim Maloney | Third | 15 out |
| Friday, September 6 |
| » Lost to Dodgers (62-79), 6-4 | Crosley Field (35-36) | 72-66 | |
| » Starters: Bill Singer vs Gerry Arrigo | Third | 15 out |
| » Lost to Dodgers (63-79), 8-6 | Crosley Field (35-37) | 72-67 | Lost 2 |
| » Starters: Mike Kekich vs Tony Cloninger | Third | 15 out |
| Saturday, September 7 |
| » Defeated Dodgers (63-80), 4-2 | Crosley Field (36-37) | 73-67 | |
| » Starters: Claude Osteen vs Gary Nolan | Third | 14 out |
| Sunday, September 8 |
| » Lost to Dodgers (64-80), 3-2 | Crosley Field (36-38) | 73-68 | |
| » Starters: Joe Moeller vs George Culver | Third | 15 out |
| Tuesday, September 10 |
| » Lost to Astros (66-79), 3-2 | Crosley Field (36-39) | 73-69 | Lost 2 |
| » Starters: Don Wilson vs Gerry Arrigo | Fourth | 14 out |
| » Defeated Astros (66-80), 4-3 | Crosley Field (37-39) | 74-69 | |
| » Starters: Mike Cuellar vs Mel Queen | Fourth | 14 out |
| » Major-league debuts: John Mayberry (Astros) |
| Wednesday, September 11 |
| » Defeated Astros (66-81), 5-1 | Crosley Field (38-39) | 75-69 | Won 2 |
| » Starters: Denny Lemaster vs Gary Nolan | Third | 13½ out |
| » Defeated Astros (66-82), 11-6 | Crosley Field (39-39) | 76-69 | Won 3 |
| » Starters: John Buzhardt vs George Culver | Third | 13½ out |
| Thursday, September 12 |
| Former Red Don Rudolph dies in Granada Hills, CA at the age of 38. |
| Friday, September 13 |
| » Defeated Giants (79-69), 6-3 | Candlestick Park (5-1) | 77-69 | Won 4 |
| » Starters: Jim Maloney vs Gaylord Perry | Third | 12½ out |
| Future Red Denny Neagle is born in Gambrills, MD. |
| Saturday, September 14 |
| » Lost to Giants (80-69), 9-1 | Candlestick Park (5-2) | 77-70 | |
| » Starters: Gerry Arrigo vs Bobby Bolin | Third | 13½ out |
| Former Red Hans Lobert dies in Philadelphia, PA at the age of 87. |
| Sunday, September 15 |
| » Defeated Giants (80-70), 4-0 | Candlestick Park (6-2) | 78-70 | |
| » Starters: George Culver vs Ray Sadecki | Third | 13½ out |
| Monday, September 16 |
| » Lost to Giants (81-70), 8-4 | Candlestick Park (6-3) | 78-71 | |
| » Starters: Gary Nolan vs Mike McCormick | Third | 14 out |
| Tuesday, September 17 |
| » Lost to Dodgers (70-82), 7-5 | Dodger Stadium (4-3) | 78-72 | Lost 2 |
| » Starters: Jim Maloney vs Claude Osteen | Third | 14 out |
| Wednesday, September 18 |
| » Defeated Dodgers (70-83), 2-0 | Dodger Stadium (5-3) | 79-72 | |
| » Starters: Gerry Arrigo vs Don Sutton | Third | 14 out |
| Thursday, September 19 |
| » Lost to Dodgers (71-83), 3-1 | Dodger Stadium (5-4) | 79-73 | |
| » Starters: George Culver vs Alan Foster | Third | 14 out |
| Friday, September 20 |
| » Lost to Astros (69-86), 7-6 | Astrodome (4-3) | 79-74 | Lost 2 |
| » Starters: Gary Nolan vs Larry Dierker | Third | 14 out |
| Saturday, September 21 |
| » Defeated Astros (69-87), 5-0 | Astrodome (5-3) | 80-74 | |
| » Starters: Jim Maloney vs Don Wilson | Third | 13 out |
| Sunday, September 22 |
| » Lost to Astros (70-87), 6-1 | Astrodome (5-4) | 80-75 | |
