| Monday, January 8 |
| Future Red Mike Cameron is born in LaGrange, GA. |
| Friday, January 19 |
| Future Red Chris Stynes is born in Queens, NY. |
| Friday, March 9 |
| Future Red Aaron Boone is born in LaMesa, CA. Future Red C.J. Nitkowski is born in Suffern, NY. |
| Monday, April 2 |
| Future Red Marc Kroon is born in Bronx, NY. |
| Thursday, April 5 |
| » Lost to Giants (1-0), 4-1 | Riverfront Stadium (0-1) | 0-1 | |
| » Starters: Juan Marichal vs Don Gullett | Third | 1 out |
| » Major-league debuts: Gene Locklear (Reds) |
| Saturday, April 7 |
| » Lost to Giants (2-0), 7-5 | Riverfront Stadium (0-2) | 0-2 | Lost 2 |
| » Starters: Jim Willoughby vs Jack Billingham | Fourth | 2 out |
| Future Red Brett Tomko is born in Cleveland, OH. |
| Sunday, April 8 |
| » Defeated Giants (2-1), 3-1 | Riverfront Stadium (1-2) | 1-2 | |
| » Starters: Tom Bradley vs Ross Grimsley | Second | 1 out |
| Monday, April 9 |
| » Defeated Braves (1-3), 8-7 | Atlanta-Fulton County Stadium (1-0) | 2-2 | Won 2 |
| » Starters: Roger Nelson vs Carl Morton | Second | 1 out |
| Wednesday, April 11 |
| » Defeated Dodgers (1-5), 4-1 | Dodger Stadium (1-0) | 3-2 | Won 3 |
| » Starters: Don Gullett vs Don Sutton | Third | 1½ out |
| Thursday, April 12 |
| » Defeated Dodgers (1-6), 5-2 | Dodger Stadium (2-0) | 4-2 | Won 4 |
| » Starters: Jack Billingham vs Andy Messersmith | Second | 1½ out |
| Friday, April 13 |
| » Lost to Giants (7-1), 5-4 | Candlestick Park (0-1) | 4-3 | |
| » Starters: Ross Grimsley vs Ron Bryant | Second | 2½ out |
| » Major-league debuts: Mike Sadek (Giants) |
| Saturday, April 14 |
| » Defeated Giants (7-2), 3-0 | Candlestick Park (1-1) | 5-3 | |
| » Starters: Roger Nelson vs Jim Barr | Second | 1½ out |
| Sunday, April 15 |
| » Defeated Giants (7-3), 11-0 | Candlestick Park (2-1) | 6-3 | Won 2 |
| » Starters: Don Gullett vs Juan Marichal | First | -- |
| » Defeated Giants (7-4), 7-3 | Candlestick Park (3-1) | 7-3 | Won 3 |
| » Starters: Jim McGlothlin vs Jim Willoughby | First | -- |
| » Major-league debuts: Mike Phillips (Giants) |
| Monday, April 16 |
| » Defeated Padres (5-7), 7-6 | San Diego/Jack Murphy Stadium (1-0) | 8-3 | Won 4 |
| » Starters: Jack Billingham vs Clay Kirby | First | -- |
| Tuesday, April 17 |
| » Defeated Padres (5-8), 3-0 | San Diego/Jack Murphy Stadium (2-0) | 9-3 | Won 5 |
| » Starters: Ross Grimsley vs Fred Norman | First | -- |
| Wednesday, April 18 |
| » Lost to Padres (6-8), 4-2 | San Diego/Jack Murphy Stadium (2-1) | 9-4 | |
| » Starters: Roger Nelson vs Steve Arlin | Second | ½ out |
| Future Red Brady Clark is born in Portland, OR. |
| Friday, April 20 |
| » Defeated Braves (3-10), 4-2 | Riverfront Stadium (2-2) | 10-4 | |
| » Starters: Gary Gentry vs Don Gullett | Second | 1 out |
| Future Red Scott Winchester is born in Midland, MI. |
| Saturday, April 21 |
| » Lost to Braves (4-10), 5-4 | Riverfront Stadium (2-3) | 10-5 | |
| » Starters: Pat Dobson vs Jack Billingham | Second | 1 out |
| Sunday, April 22 |
| » Defeated Braves (4-11), 6-3 | Riverfront Stadium (3-3) | 11-5 | |
| » Starters: Ron Reed vs Ross Grimsley | Second | 1 out |
| Tuesday, April 24 |
| » Lost to Expos (7-7), 7-2 | Riverfront Stadium (3-4) | 11-6 | |
| » Starters: Mike Torrez vs Don Gullett | Second | 2 out |
| Wednesday, April 25 |
| » Defeated Expos (7-8), 7-4 | Riverfront Stadium (4-4) | 12-6 | |
| » Starters: Balor Moore vs Jack Billingham | Second | 2 out |
| Friday, April 27 |
| » Lost to Phillies (8-8), 3-1 | Riverfront Stadium (4-5) | 12-7 | |
| » Starters: Steve Carlton vs Ross Grimsley | Second | 3½ out |
| Saturday, April 28 |
| » Lost to Phillies (9-8), 1-0 | Riverfront Stadium (4-6) | 12-8 | Lost 2 |
| » Starters: Dick Ruthven vs Don Gullett | Second | 4½ out |
| Sunday, April 29 |
| » Defeated Phillies (9-9), 8-0 | Riverfront Stadium (5-6) | 13-8 | |
| » Starters: Larry Christenson vs Jack Billingham | Second | 3½ out |
| Wednesday, May 2 |
| » Defeated Mets (12-9), 6-1 | Shea Stadium (1-0) | 14-8 | Won 2 |
| » Starters: Ross Grimsley vs Tom Seaver | Second | 3 out |
| Thursday, May 3 |
| » Defeated Mets (12-10), 6-5 | Shea Stadium (2-0) | 15-8 | Won 3 |
| » Starters: Jim McGlothlin vs Jon Matlack | Second | 2 out |
| Friday, May 4 |
| » Lost to Expos (10-11), 6-3 | Parc Jarry (0-1) | 15-9 | |
| » Starters: Jack Billingham vs Mike Torrez | Third | 3 out |
| Saturday, May 5 |
| » Lost to Expos (11-11), 8-6 | Parc Jarry (0-2) | 15-10 | Lost 2 |
| » Starters: Don Gullett vs Bill Stoneman | Third | 3 out |
| Sunday, May 6 |
| » Defeated Expos (11-12), 6-1 | Parc Jarry (1-2) | 16-10 | |
| » Starters: Roger Nelson vs Balor Moore | Third | 3½ out |
| Monday, May 7 |
| » Lost to Phillies (11-13), 3-2 | Veteran's Stadium (0-1) | 16-11 | |
| » Starters: Ross Grimsley vs Wayne Twitchell | Third | 4 out |
| Tuesday, May 8 |
| » Defeated Phillies (11-14), 7-1 | Veteran's Stadium (1-1) | 17-11 | |
| » Starters: Jack Billingham vs Dick Ruthven | Third | 4 out |
| Wednesday, May 9 |
| » Defeated Phillies (11-15), 9-7 | Veteran's Stadium (2-1) | 18-11 | Won 2 |
| » Starters: Don Gullett vs Steve Carlton | Third | 3 out |
| Friday, May 11 |
| » Lost to Astros (21-11), 5-1 | Astrodome (0-1) | 18-12 | |
| » Starters: Roger Nelson vs Don Wilson | Third | 3½ out |
| Saturday, May 12 |
| » Lost to Astros (22-11), 7-1 | Astrodome (0-2) | 18-13 | Lost 2 |
| » Starters: Ross Grimsley vs Jerry Reuss | Third | 4½ out |
| Sunday, May 13 |
| » Defeated Astros (22-12), 2-0 | Astrodome (1-2) | 19-13 | |
| » Starters: Jack Billingham vs Ken Forsch | Third | 3½ out |
| Tuesday, May 15 |
| » Defeated Dodgers (19-16), 4-1 | Riverfront Stadium (6-6) | 20-13 | Won 2 |
| » Starters: Claude Osteen vs Don Gullett | Third | 3 out |
| Wednesday, May 16 |
| » Lost to Dodgers (20-16), 8-6 | Riverfront Stadium (6-7) | 20-14 | |
| » Starters: Al Downing vs Ross Grimsley | Third | 3 out |
| Thursday, May 17 |
| » Lost to Dodgers (21-16), 3-1 | Riverfront Stadium (6-8) | 20-15 | Lost 2 |
| » Starters: Don Sutton vs Clay Carroll | Third | 3½ out |
| Friday, May 18 |
| » Defeated Padres (14-24), 5-4 | Riverfront Stadium (7-8) | 21-15 | |
| » Starters: Bill Greif vs Jack Billingham | Third | 2½ out |
| Saturday, May 19 |
| » Defeated Padres (14-25), 10-4 | Riverfront Stadium (8-8) | 22-15 | Won 2 |
| » Starters: Mike Corkins vs Jim McGlothlin | Third | 1½ out |
| Sunday, May 20 |
| » Lost to Padres (15-25), 2-1 | Riverfront Stadium (8-9) | 22-16 | |
| » Starters: Fred Norman vs Ross Grimsley | Third | 2 out |
| » Defeated Padres (15-26), 3-2 | Riverfront Stadium (9-9) | 23-16 | |
| » Starters: Mike Caldwell vs Don Gullett | Third | 2 out |
| Monday, May 21 |
| Former Red Herm Wehmeier dies in Dallas, TX at the age of 47. |
| Tuesday, May 22 |
| » Defeated Astros (26-17), 6-4 | Riverfront Stadium (10-9) | 24-16 | Won 2 |
| » Starters: Dave Roberts vs Clay Carroll | Third | 2½ out |
| Wednesday, May 23 |
| » Defeated Astros (26-18), 4-3 | Riverfront Stadium (11-9) | 25-16 | Won 3 |
| » Starters: Don Wilson vs Jack Billingham | Second | 2 out |
| Friday, May 25 |
| » Lost to Cubs (26-17), 7-2 | Riverfront Stadium (11-10) | 25-17 | |
| » Starters: Rick Reuschel vs Don Gullett | Third | 1½ out |
| Saturday, May 26 |
| » Lost to Cubs (27-17), 2-0 | Riverfront Stadium (11-11) | 25-18 | Lost 2 |
| » Starters: Milt Pappas vs Ross Grimsley | Third | 2½ out |
| Sunday, May 27 |
| » Lost to Cubs (28-17), 6-0 | Riverfront Stadium (11-12) | 25-19 | Lost 3 |
| » Starters: Fergie Jenkins vs Jim McGlothlin | Fourth | 2½ out |
| Monday, May 28 |
| » Defeated Cubs (28-18), 6-5 | Riverfront Stadium (12-12) | 26-19 | |
| » Starters: Burt Hooton vs Jack Billingham | Fourth | 2½ out |
| Tuesday, May 29 |
| » Lost to Cardinals (18-24), 2-0 | Busch Stadium II (0-1) | 26-20 | |
| » Starters: Clay Carroll vs Scipio Spinks | Fourth | 2½ out |
| Wednesday, May 30 |
| » Lost to Cardinals (19-24), 5-2 | Busch Stadium II (0-2) | 26-21 | Lost 2 |
| » Starters: Don Gullett vs Alan Foster | Fourth | 3½ out |
| Thursday, May 31 |
| » Defeated Cardinals (19-25), 3-2 | Busch Stadium II (1-2) | 27-21 | |
| » Starters: Ross Grimsley vs Bob Gibson | Fourth | 3 out |
| Friday, June 1 |
| » Lost to Pirates (22-21), 9-6 | Three Rivers Stadium (0-1) | 27-22 | |
| » Starters: Jim McGlothlin vs Steve Blass | Fourth | 4 out |
| Saturday, June 2 |
| » Lost to Pirates (23-21), 4-3 | Three Rivers Stadium (0-2) | 27-23 | Lost 2 |
| » Starters: Jack Billingham vs Dock Ellis | Fourth | 5 out |
| Sunday, June 3 |
| » Defeated Pirates (23-22), 5-1 | Three Rivers Stadium (1-2) | 28-23 | |
| » Starters: Clay Carroll vs Luke Walker | Third | 5 out |
| Monday, June 4 |
| » Defeated Mets (22-25), 5-0 | Riverfront Stadium (13-12) | 29-23 | Won 2 |
| » Starters: Jon Matlack vs Jack Billingham | Third | 5 out |
| Tuesday, June 5 |
| » Defeated Mets (22-26), 6-5 | Riverfront Stadium (14-12) | 30-23 | Won 3 |
| » Starters: Jerry Koosman vs Ross Grimsley | Third | 5 out |
| Friday, June 8 |
| » Lost to Cubs (34-22), 6-5 | Wrigley Field (0-1) | 30-24 | |
| » Starters: Clay Carroll vs Milt Pappas | Third | 5½ out |
| Saturday, June 9 |
| » Defeated Cubs (34-23), 8-4 | Wrigley Field (1-1) | 31-24 | |
| » Starters: Jack Billingham vs Fergie Jenkins | Third | 4½ out |
| » Major-league debuts: Dan Driessen (Reds) |
| Sunday, June 10 |
| » Lost to Cubs (35-23), 9-7 | Wrigley Field (1-2) | 31-25 | |
| » Starters: Jim McGlothlin vs Burt Hooton | Third | 4½ out |
| Future Red Pokey Reese is born in Columbia, SC. |
| Monday, June 11 |
| » Lost to Cardinals (26-29), 12-4 | Riverfront Stadium (14-13) | 31-26 | Lost 2 |
| » Starters: Bob Gibson vs Don Gullett | Fourth | 5½ out |
| Tuesday, June 12 |
| » Lost to Cardinals (27-29), 11-5 | Riverfront Stadium (14-14) | 31-27 | Lost 3 |
| » Starters: Reggie Cleveland vs Ross Grimsley | Fourth | 5½ out |
| Wednesday, June 13 |
| » Lost to Cardinals (28-29), 8-0 | Riverfront Stadium (14-15) | 31-28 | Lost 4 |
| » Starters: Rick Wise vs Jack Billingham | Fourth | 5½ out |
| Friday, June 15 |
| » Defeated Pirates (24-31), 6-0 | Riverfront Stadium (15-15) | 32-28 | |
| » Starters: Bob Moose vs Fred Norman | Fourth | 5½ out |
| Saturday, June 16 |
| » Lost to Pirates (25-31), 5-0 | Riverfront Stadium (15-16) | 32-29 | |
| » Starters: Nelson Briles vs Don Gullett | Fourth | 5½ out |
| Sunday, June 17 |
| » Defeated Pirates (25-32), 3-1 | Riverfront Stadium (16-16) | 33-29 | |
| » Starters: Luke Walker vs Jack Billingham | Fourth | 4½ out |
| » Defeated Pirates (25-33), 5-1 | Riverfront Stadium (17-16) | 34-29 | Won 2 |
| » Starters: Tom Dettore vs Ross Grimsley | Fourth | 4½ out |
| Tuesday, June 19 |
| » Defeated Giants (40-28), 4-0 | Candlestick Park (4-1) | 35-29 | Won 3 |
| » Starters: Fred Norman vs Ron Bryant | Fourth | 5 out |
| Wednesday, June 20 |
| » Defeated Giants (40-29), 7-5 | Candlestick Park (5-1) | 36-29 | Won 4 |
| » Starters: Don Gullett vs Elias Sosa | Third | 5 out |
| Thursday, June 21 |
| » Lost to Giants (41-29), 7-1 | Candlestick Park (5-2) | 36-30 | |
| » Starters: Jack Billingham vs Tom Bradley | Fourth | 6 out |
| Friday, June 22 |
| » Lost to Dodgers (44-25), 3-2 | Dodger Stadium (2-1) | 36-31 | Lost 2 |
| » Starters: Ross Grimsley vs Don Sutton | Fourth | 7 out |
| Saturday, June 23 |
| » Defeated Dodgers (44-26), 4-1 | Dodger Stadium (3-1) | 37-31 | |
| » Starters: Fred Norman vs Andy Messersmith | Fourth | 7 out |
| » Lost to Dodgers (45-26), 5-1 | Dodger Stadium (3-2) | 37-32 | |
| » Starters: Tom Hall vs Tommy John | Fourth | 7 out |
| Sunday, June 24 |
| » Lost to Dodgers (46-26), 5-2 | Dodger Stadium (3-3) | 37-33 | Lost 2 |
| » Starters: Don Gullett vs Al Downing | Fourth | 8 out |
| Monday, June 25 |
| » Lost to Astros (42-32), 13-2 | Astrodome (1-3) | 37-34 | Lost 3 |
| » Starters: Jack Billingham vs Ken Forsch | Third | 9 out |
| Tuesday, June 26 |
| » Defeated Astros (42-33), 5-1 | Astrodome (2-3) | 38-34 | |
| » Starters: Ross Grimsley vs Don Wilson | Third | 9 out |
| Wednesday, June 27 |
| » Lost to Astros (43-33), 10-2 | Astrodome (2-4) | 38-35 | |
| » Starters: Fred Norman vs Jerry Reuss | Third | 9½ out |
| Thursday, June 28 |
| » Lost to Padres (24-51), 6-1 | Riverfront Stadium (17-17) | 38-36 | Lost 2 |
| » Starters: Clay Kirby vs Don Gullett | Fourth | 10 out |
| Friday, June 29 |
| » Defeated Padres (24-52), 4-0 | Riverfront Stadium (18-17) | 39-36 | |
| » Starters: Rich Troedson vs Jack Billingham | Fourth | 10 out |
| Saturday, June 30 |
| » Lost to Dodgers (51-27), 8-7 | Riverfront Stadium (18-18) | 39-37 | |
| » Starters: Claude Osteen vs Tom Hall | Fourth | 11 out |
| Sunday, July 1 |
| » Defeated Dodgers (51-28), 4-3 | Riverfront Stadium (19-18) | 40-37 | |
| » Starters: Don Sutton vs Fred Norman | Fourth | 9 out |
| » Defeated Dodgers (51-29), 3-2 | Riverfront Stadium (20-18) | 41-37 | Won 2 |
| » Starters: Doug Rau vs Ross Grimsley | Fourth | 9 out |
| Monday, July 2 |
| » Defeated Dodgers (51-30), 4-2 | Riverfront Stadium (21-18) | 42-37 | Won 3 |
| » Starters: Andy Messersmith vs Jim McGlothlin | Fourth | 8 out |
| Former Red Chick Hafey dies in Calistoga, CA at the age of 71. |
| Tuesday, July 3 |
| » Defeated Giants (47-36), 6-3 | Riverfront Stadium (22-18) | 43-37 | Won 4 |
| » Starters: Juan Marichal vs Jack Billingham | Third | 7 out |
| Wednesday, July 4 |
| » Lost to Giants (48-36), 6-2 | Riverfront Stadium (22-19) | 43-38 | |
| » Starters: Tom Bradley vs Tom Hall | Fourth | 7 out |
| Thursday, July 5 |
| » Defeated Giants (48-37), 4-3 | Riverfront Stadium (23-19) | 44-38 | |
| » Starters: Ron Bryant vs Ross Grimsley | Fourth | 6 out |
| Friday, July 6 |
| » Defeated Phillies (38-43), 8-2 | Veteran's Stadium (3-1) | 45-38 | Won 2 |
| » Starters: Fred Norman vs Dick Ruthven | Third | 6 out |
| Saturday, July 7 |
| » Defeated Phillies (38-44), 5-4 | Veteran's Stadium (4-1) | 46-38 | Won 3 |
| » Starters: Jim McGlothlin vs Jim Lonborg | Third | 6 out |
| Sunday, July 8 |
| » Defeated Phillies (38-45), 4-0 | Veteran's Stadium (5-1) | 47-38 | Won 4 |
| » Starters: Jack Billingham vs Wayne Twitchell | Third | 6 out |
| Monday, July 9 |
| » Defeated Expos (40-42), 11-6 | Parc Jarry (2-2) | 48-38 | Won 5 |
| » Starters: Tom Hall vs Bill Stoneman | Second | 5½ out |
| Tuesday, July 10 |
| » Defeated Expos (40-43), 6-2 | Parc Jarry (3-2) | 49-38 | Won 6 |
| » Starters: Ross Grimsley vs Mike Torrez | Second | 4½ out |
| Wednesday, July 11 |
| » Lost to Expos (41-43), 4-3 | Parc Jarry (3-3) | 49-39 | |
| » Starters: Fred Norman vs Steve Renko | Second | 5½ out |
| Friday, July 13 |
| » Defeated Mets (36-48), 2-1 | Riverfront Stadium (24-19) | 50-39 | |
| » Starters: Tom Seaver vs Jack Billingham | Third | 6½ out |
| » Lost to Mets (37-48), 7-5 | Riverfront Stadium (24-20) | 50-40 | |
| » Starters: Ray Sadecki vs Jim McGlothlin | Third | 6½ out |
| Saturday, July 14 |
| » Lost to Mets (38-48), 5-2 | Riverfront Stadium (24-21) | 50-41 | Lost 2 |
| » Starters: George Stone vs Tom Hall | Third | 7½ out |
| Sunday, July 15 |
| » Defeated Mets (38-49), 3-1 | Riverfront Stadium (25-21) | 51-41 | |
| » Starters: Jon Matlack vs Ross Grimsley | Third | 7½ out |
| Monday, July 16 |
| » Defeated Phillies (41-50), 1-0 | Riverfront Stadium (26-21) | 52-41 | Won 2 |
| » Starters: Ken Brett vs Fred Norman | Second | 7½ out |
| Tuesday, July 17 |
| » Lost to Phillies (42-50), 2-1 | Riverfront Stadium (26-22) | 52-42 | |
| » Starters: Jim Lonborg vs Jack Billingham | Second | 8½ out |
| Former Red Evar Swanson dies in Galesburg, IL at the age of 71. |
| Wednesday, July 18 |
| » Defeated Phillies (42-51), 7-3 | Riverfront Stadium (27-22) | 53-42 | |
| » Starters: Steve Carlton vs Tom Hall | Second | 7½ out |
| » Major-league debuts: Dave Wallace (Phillies) |
| Thursday, July 19 |
| » Defeated Expos (44-48), 3-2 | Riverfront Stadium (28-22) | 54-42 | Won 2 |
| » Starters: Bill Stoneman vs Ross Grimsley | Second | 7½ out |
| Friday, July 20 |
| » Defeated Expos (44-49), 4-0 | Riverfront Stadium (29-22) | 55-42 | Won 3 |
| » Starters: Mike Torrez vs Fred Norman | Second | 7½ out |
| Saturday, July 21 |
| » Defeated Expos (44-50), 6-4 | Riverfront Stadium (30-22) | 56-42 | Won 4 |
| » Starters: Steve Renko vs Roger Nelson | Second | 6½ out |
| Sunday, July 22 |
| » Defeated Expos (44-51), 6-0 | Riverfront Stadium (31-22) | 57-42 | Won 5 |
| » Starters: Ernie McAnally vs Jack Billingham | Second | 5½ out |
| Tuesday, July 24 |
| Future Red Stephen Larkin is born in Cincinnati, OH. |
| Thursday, July 26 |
| » Defeated Braves (45-58), 5-3 | Riverfront Stadium (32-22) | 58-42 | Won 6 |
| » Starters: Ron Schueler vs Fred Norman | Second | 6 out |
| » Lost to Braves (46-58), 6-4 | Riverfront Stadium (32-23) | 58-43 | |
| » Starters: Phil Niekro vs Ross Grimsley | Second | 6 out |
| Friday, July 27 |
| » Defeated Braves (46-59), 12-2 | Riverfront Stadium (33-23) | 59-43 | |
| » Starters: Carl Morton vs Jack Billingham | Second | 5 out |
| Saturday, July 28 |
| » Defeated Padres (34-68), 2-1 | San Diego/Jack Murphy Stadium (3-1) | 60-43 | Won 2 |
| » Starters: Tom Hall vs Randy Jones | Second | 4 out |
| Sunday, July 29 |
| » Lost to Padres (35-68), 7-1 | San Diego/Jack Murphy Stadium (3-2) | 60-44 | |
| » Starters: Gary Nolan vs Rich Troedson | Second | 4½ out |
| » Defeated Padres (35-69), 4-2 | San Diego/Jack Murphy Stadium (4-2) | 61-44 | |
| » Starters: Roger Nelson vs Mike Caldwell | Second | 4½ out |
| Tuesday, July 31 |
| » Defeated Braves (48-61), 9-5 | Atlanta-Fulton County Stadium (2-0) | 62-44 | Won 2 |
| » Starters: Ross Grimsley vs Jimmy Freeman | Second | 3½ out |
| » Defeated Braves (48-62), 13-11 | Atlanta-Fulton County Stadium (3-0) | 63-44 | Won 3 |
| » Starters: Fred Norman vs Carl Morton | Second | 3½ out |
| Wednesday, August 1 |
| » Lost to Braves (49-62), 14-6 | Atlanta-Fulton County Stadium (3-1) | 63-45 | |
| » Starters: Jack Billingham vs Phil Niekro | Second | 3½ out |
| Thursday, August 2 |
| » Defeated Braves (49-63), 17-2 | Atlanta-Fulton County Stadium (4-1) | 64-45 | |
| » Starters: Don Gullett vs Roric Harrison | Second | 3½ out |
| Friday, August 3 |
| » Lost to Astros (57-54), 1-0 | Riverfront Stadium (33-24) | 64-46 | |
| » Starters: Don Wilson vs Gary Nolan | Second | 4 out |
| » Defeated Astros (57-55), 11-5 | Riverfront Stadium (34-24) | 65-46 | |
| » Starters: Ken Forsch vs Roger Nelson | Second | 4 out |
| Saturday, August 4 |
| » Defeated Astros (57-56), 7-6 | Riverfront Stadium (35-24) | 66-46 | Won 2 |
| » Starters: Dave Roberts vs Fred Norman | Second | 3 out |
| Sunday, August 5 |
| » Defeated Astros (57-57), 7-1 | Riverfront Stadium (36-24) | 67-46 | Won 3 |
| » Starters: J.R. Richard vs Ross Grimsley | Second | 3 out |
| Monday, August 6 |
| » Lost to Astros (58-57), 5-4 | Riverfront Stadium (36-25) | 67-47 | |
| » Starters: Jerry Reuss vs Jack Billingham | Second | 4 out |
| Tuesday, August 7 |
| » Defeated Cubs (56-57), 1-0 | Riverfront Stadium (37-25) | 68-47 | |
| » Starters: Rick Reuschel vs Don Gullett | Second | 4 out |
| Future Red Danny Graves is born in Saigon, South Vietnam. |
| Wednesday, August 8 |
| » Defeated Cubs (56-58), 4-3 | Riverfront Stadium (38-25) | 69-47 | Won 2 |
| » Starters: Fergie Jenkins vs Fred Norman | Second | 3 out |
| Friday, August 10 |
| » Defeated Cardinals (61-55), 8-4 | Busch Stadium II (2-2) | 70-47 | Won 3 |
| » Starters: Ross Grimsley vs Rick Wise | Second | 2½ out |
| Saturday, August 11 |
| » Defeated Cardinals (61-56), 7-5 | Busch Stadium II (3-2) | 71-47 | Won 4 |
| » Starters: Jack Billingham vs Reggie Cleveland | Second | 1½ out |
| » Major-league debuts: Hector Cruz (Cardinals) |
| Sunday, August 12 |
| » Defeated Cardinals (61-57), 7-2 | Busch Stadium II (4-2) | 72-47 | Won 5 |
| » Starters: Don Gullett vs Tom Murphy | Second | 1½ out |
| » Major-league debuts: Tom Heintzelman (Cardinals) |
| Monday, August 13 |
| » Lost to Pirates (57-58), 3-2 | Three Rivers Stadium (1-3) | 72-48 | |
| » Starters: Fred Norman vs Nelson Briles | Second | 2½ out |
| Tuesday, August 14 |
| » Defeated Pirates (57-59), 5-4 | Three Rivers Stadium (2-3) | 73-48 | |
| » Starters: Ross Grimsley vs Jim Rooker | Second | 2½ out |
| Wednesday, August 15 |
| » Defeated Pirates (57-60), 1-0 | Three Rivers Stadium (3-3) | 74-48 | Won 2 |
| » Starters: Jack Billingham vs Dock Ellis | Second | 2½ out |
| Thursday, August 16 |
| Future Red Damian Jackson is born in Los Angeles, CA. |
| Friday, August 17 |
| » Defeated Mets (53-66), 2-1 | Shea Stadium (3-0) | 75-48 | Won 3 |
| » Starters: Don Gullett vs George Stone | Second | 1½ out |
| Saturday, August 18 |
| » Lost to Mets (54-66), 12-1 | Shea Stadium (3-1) | 75-49 | |
| » Starters: Fred Norman vs Jon Matlack | Second | 1½ out |
| Sunday, August 19 |
| » Lost to Mets (55-66), 2-1 | Shea Stadium (3-2) | 75-50 | Lost 2 |
| » Starters: Ross Grimsley vs Jerry Koosman | Second | 2½ out |
| Monday, August 20 |
| » Defeated Mets (55-67), 8-3 | Shea Stadium (4-2) | 76-50 | |
| » Starters: Jack Billingham vs Tom Seaver | Second | 2 out |
| Tuesday, August 21 |
| » Lost to Cubs (59-65), 6-4 | Wrigley Field (1-3) | 76-51 | |
| » Starters: Don Gullett vs Fergie Jenkins | Second | 2 out |
| Wednesday, August 22 |
| » Lost to Cubs (60-65), 6-5 | Wrigley Field (1-4) | 76-52 | Lost 2 |
| » Starters: Fred Norman vs Milt Pappas | Second | 2 out |
| Thursday, August 23 |
| » Lost to Cubs (61-65), 4-3 | Wrigley Field (1-5) | 76-53 | Lost 3 |
| » Starters: Ross Grimsley vs Bill Bonham | Second | 3 out |
| » Major-league debuts: Matt Alexander (Cubs) |
| Friday, August 24 |
| » Lost to Cardinals (65-62), 5-4 | Riverfront Stadium (38-26) | 76-54 | Lost 4 |
| » Starters: Alan Foster vs Jack Billingham | Second | 4 out |
| Saturday, August 25 |
| » Defeated Cardinals (65-63), 6-4 | Riverfront Stadium (39-26) | 77-54 | |
| » Starters: Rick Wise vs Don Gullett | Second | 4 out |
| » Major-league debuts: Ken Griffey and Sr. (Reds) |
| Sunday, August 26 |
| » Defeated Cardinals (65-64), 4-1 | Riverfront Stadium (40-26) | 78-54 | Won 2 |
| » Starters: Reggie Cleveland vs Fred Norman | Second | 4 out |
| Future Red Mark Budzinski is born in Baltimore, MD. |
| Tuesday, August 28 |
| » Lost to Pirates (63-64), 8-3 | Riverfront Stadium (40-27) | 78-55 | |
| » Starters: Bob Moose vs Ross Grimsley | Second | 4½ out |
| Wednesday, August 29 |
| » Defeated Pirates (63-65), 5-3 | Riverfront Stadium (41-27) | 79-55 | |
| » Starters: Nelson Briles vs Jack Billingham | Second | 3½ out |
| Friday, August 31 |
| » Defeated Padres (48-85), 10-4 | San Diego/Jack Murphy Stadium (5-2) | 80-55 | Won 2 |
| » Starters: Don Gullett vs Bill Greif | Second | 3 out |
| » Major-league debuts: Ed Armbrister (Reds) |
| Saturday, September 1 |
| » Defeated Padres (48-86), 3-2 | San Diego/Jack Murphy Stadium (6-2) | 81-55 | Won 3 |
| » Starters: Fred Norman vs Randy Jones | Second | 2 out |
| Sunday, September 2 |
| » Defeated Padres (48-87), 6-1 | San Diego/Jack Murphy Stadium (7-2) | 82-55 | Won 4 |
| » Starters: Ross Grimsley vs Steve Arlin | Second | 1 out |
| Monday, September 3 |
| » Defeated Astros (71-69), 4-3 | Astrodome (3-4) | 83-55 | Won 5 |
| » Starters: Jack Billingham vs Juan Pizarro | First | -- |
| Tuesday, September 4 |
| » Defeated Astros (71-70), 12-7 | Astrodome (4-4) | 84-55 | Won 6 |
| » Starters: Don Gullett vs Tom Griffin | First | -- |
| Wednesday, September 5 |
| » Defeated Astros (71-71), 9-3 | Astrodome (5-4) | 85-55 | Won 7 |
| » Starters: Fred Norman vs Jerry Reuss | First | -- |
| » Major-league debuts: Mike Easler and Greg Gross (Astros) |
| Future Red Justin Atchley is born in Sedro Woolley, WA. |
| Friday, September 7 |
| » Lost to Braves (68-74), 5-0 | Atlanta-Fulton County Stadium (4-2) | 85-56 | |
| » Starters: Ross Grimsley vs Ron Schueler | First | -- |
| Saturday, September 8 |
| » Lost to Braves (69-74), 3-2 | Atlanta-Fulton County Stadium (4-3) | 85-57 | Lost 2 |
| » Starters: Jack Billingham vs Carl Morton | First | -- |
| Sunday, September 9 |
| » Defeated Braves (69-75), 14-6 | Atlanta-Fulton County Stadium (5-3) | 86-57 | |
| » Starters: Fred Norman vs Roric Harrison | First | -- |
| » Defeated Braves (69-76), 7-0 | Atlanta-Fulton County Stadium (6-3) | 87-57 | Won 2 |
| » Starters: Don Gullett vs Phil Niekro | First | -- |
| Tuesday, September 11 |
| » Defeated Dodgers (84-61), 6-3 | Riverfront Stadium (42-27) | 88-57 | Won 3 |
| » Starters: Don Sutton vs Ross Grimsley | First | -- |
| Wednesday, September 12 |
| » Defeated Dodgers (84-62), 7-3 | Riverfront Stadium (43-27) | 89-57 | Won 4 |
| » Starters: Claude Osteen vs Jack Billingham | First | -- |
| Friday, September 14 |
| » Defeated Braves (72-77), 7-6 | Riverfront Stadium (44-27) | 90-57 | Won 5 |
| » Starters: Roric Harrison vs Don Gullett | First | -- |
| Saturday, September 15 |
| » Defeated Braves (72-78), 3-2 | Riverfront Stadium (45-27) | 91-57 | Won 6 |
| » Starters: Phil Niekro vs Fred Norman | First | -- |
| Sunday, September 16 |
| » Defeated Braves (72-79), 4-3 | Riverfront Stadium (46-27) | 92-57 | Won 7 |
| » Starters: Ron Schueler vs Ross Grimsley | First | -- |
| Monday, September 17 |
| » Lost to Astros (77-75), 5-2 | Riverfront Stadium (46-28) | 92-58 | |
| » Starters: Dave Roberts vs Jack Billingham | First | -- |
| Tuesday, September 18 |
| » Defeated Astros (77-76), 1-0 | Riverfront Stadium (47-28) | 93-58 | |
| » Starters: Jerry Reuss vs Don Gullett | First | -- |
| Wednesday, September 19 |
| » Defeated Giants (83-68), 5-1 | Candlestick Park (6-2) | 94-58 | Won 2 |
| » Starters: Fred Norman vs Tom Bradley | First | -- |
| Thursday, September 20 |
| » Lost to Giants (84-68), 7-5 | Candlestick Park (6-3) | 94-59 | |
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