| Wednesday, January 2 |
| Former Red Gordon Slade dies in Long Beach, CA at the age of 70. |
| Monday, January 14 |
| Future Red Mike Frank is born in Pomona, CA. |
| Friday, January 18 |
| Former Red Pete Appleton dies in Trenton, NJ at the age of 70. |
| Tuesday, March 19 |
| Future Red Jason LaRue is born in Houston, TX. |
| Thursday, April 4 |
| » Defeated Braves (0-1), 7-6 | Riverfront Stadium (1-0) | 1-0 | |
| » W: Clay Carroll (1-0) L: Buzz Capra (0-1) | First | -- |
| Saturday, April 6 |
| » Defeated Braves (0-2), 7-5 | Riverfront Stadium (2-0) | 2-0 | Won 2 |
| » W: Pedro Borbon (1-0) L: Roric Harrison (0-1) | First | -- |
| » Major-league debuts: Jamie Easterly (Braves) |
| Sunday, April 7 |
| » Lost to Braves (1-2), 5-3 | Riverfront Stadium (2-1) | 2-1 | |
| » W: Phil Niekro (1-0) L: Clay Kirby (0-1) | Second | 1 out |
| Monday, April 8 |
| » Lost to Giants (4-0), 4-3 | Candlestick Park (0-1) | 2-2 | Lost 2 |
| » W: John D'Acquisto (1-0) L: Roger Nelson (0-1) S: Randy Moffitt (2) | Third | 2 out |
| Future Red Eddie Priest is born in Boaz, AL. |
| Tuesday, April 9 |
| » Defeated Giants (4-1), 6-3 | Candlestick Park (1-1) | 3-2 | |
| » W: Jack Billingham (1-0) L: Tom Bradley (1-1) S: Pedro Borbon (1) | Second | 1 out |
| Wednesday, April 10 |
| » Lost to Giants (5-1), 4-3 | Candlestick Park (1-2) | 3-3 | |
| » W: Mike Caldwell (2-0) L: Don Gullett (0-1) | Second | 2 out |
| Friday, April 12 |
| » Defeated Braves (3-5), 14-2 | Atlanta-Fulton County Stadium (1-0) | 4-3 | |
| » W: Clay Kirby (1-1) L: Ron Reed (1-1) S: Roger Nelson (1) | Third | 1 out |
| Saturday, April 13 |
| » Lost to Braves (4-5), 10-3 | Atlanta-Fulton County Stadium (1-1) | 4-4 | |
| » W: Carl Morton (1-1) L: Jack Billingham (1-1) | Third | 2 out |
| Tuesday, April 16 |
| » Lost to Dodgers (8-3), 5-3 | Riverfront Stadium (2-2) | 4-5 | Lost 2 |
| » W: Jim Brewer (1-0) L: Fred Norman (0-1) | Third | 3 out |
| Wednesday, April 17 |
| » Lost to Dodgers (9-3), 14-1 | Riverfront Stadium (2-3) | 4-6 | Lost 3 |
| » W: Doug Rau (1-0) L: Roger Nelson (0-2) | Fourth | 4 out |
| Friday, April 19 |
| » Defeated Padres (3-11), 8-4 | Riverfront Stadium (3-3) | 5-6 | |
| » W: Jack Billingham (2-1) L: Randy Jones (0-4) | Fourth | 3 out |
| Saturday, April 20 |
| » Defeated Padres (3-12), 11-0 | Riverfront Stadium (4-3) | 6-6 | Won 2 |
| » W: Don Gullett (1-1) L: Steve Arlin (1-3) | Third | 3 out |
| Sunday, April 21 |
| » Defeated Padres (3-13), 10-1 | Riverfront Stadium (5-3) | 7-6 | Won 3 |
| » W: Fred Norman (1-1) L: Jim McAndrew (1-3) | Third | 2½ out |
| » Lost to Padres (4-13), 7-2 | Riverfront Stadium (5-4) | 7-7 | |
| » W: Bill Greif (1-3) L: Clay Kirby (1-2) | Third | 2½ out |
| Tuesday, April 23 |
| » Defeated Cubs (6-6), 5-3 | Riverfront Stadium (6-4) | 8-7 | |
| » W: Roger Nelson (1-2) L: Ken Frailing (2-1) S: Pedro Borbon (2) | Third | 2½ out |
| Wednesday, April 24 |
| » Defeated Cubs (6-7), 1-0 | Riverfront Stadium (7-4) | 9-7 | Won 2 |
| » W: Jack Billingham (3-1) L: Bill Bonham (1-3) | Third | 2½ out |
| Friday, April 26 |
| » Defeated Cardinals (10-9), 4-3 | Busch Stadium II (1-0) | 10-7 | Won 3 |
| » W: Don Gullett (2-1) L: Jack Curtis (1-3) S: Pedro Borbon (3) | Second | 3 out |
| Saturday, April 27 |
| » Lost to Cardinals (11-9), 4-3 | Busch Stadium II (1-1) | 10-8 | |
| » W: Orlando Pena (1-0) L: Pedro Borbon (1-1) | Third | 4 out |
| Sunday, April 28 |
| » Lost to Cardinals (12-9), 9-2 | Busch Stadium II (1-2) | 10-9 | Lost 2 |
| » W: Bob Gibson (1-2) L: Clay Kirby (1-3) | Third | 5 out |
| Monday, April 29 |
| Future Red Hector Mercado is born in Catano, P.R. |
| Wednesday, May 1 |
| » Defeated Pirates (6-13), 5-3 | Three Rivers Stadium (1-0) | 11-9 | |
| » W: Clay Carroll (2-0) L: John Morlan (0-1) S: Pedro Borbon (4) | Third | 5 out |
| Friday, May 3 |
| » Lost to Cubs (8-12), 6-5 | Wrigley Field (0-1) | 11-10 | |
| » W: Horacio Pina (2-2) L: Don Gullett (2-2) | Third | 5 out |
| Saturday, May 4 |
| » Lost to Cubs (9-12), 3-2 | Wrigley Field (0-2) | 11-11 | Lost 2 |
| » W: Rick Reuschel (1-1) L: Fred Norman (1-2) | Third | 5 out |
| Sunday, May 5 |
| » Defeated Cubs (9-13), 5-2 | Wrigley Field (1-2) | 12-11 | |
| » W: Jack Billingham (4-1) L: Bill Bonham (1-5) S: Pedro Borbon (5) | Third | 4 out |
| Tuesday, May 7 |
| » Lost to Cardinals (15-12), 1-0 | Riverfront Stadium (7-5) | 12-12 | |
| » W: Lynn McGlothen (4-1) L: Fred Norman (1-3) | Fourth | 4½ out |
| Wednesday, May 8 |
| » Lost to Cardinals (16-12), 2-0 | Riverfront Stadium (7-6) | 12-13 | Lost 2 |
| » W: Jack Curtis (2-3) L: Don Gullett (2-3) | Fourth | 5½ out |
| Friday, May 10 |
| » Defeated Astros (19-13), 2-1 | Riverfront Stadium (8-6) | 13-13 | |
| » W: Jack Billingham (5-1) L: Larry Dierker (2-2) | Fourth | 6 out |
| Saturday, May 11 |
| » Lost to Astros (20-13), 4-2 | Riverfront Stadium (8-7) | 13-14 | |
| » W: Tom Griffin (5-1) L: Roger Nelson (1-3) | Fourth | 7 out |
| Sunday, May 12 |
| » Defeated Astros (20-14), 5-0 | Riverfront Stadium (9-7) | 14-14 | |
| » W: Fred Norman (2-3) L: Claude Osteen (4-3) | Fourth | 6½ out |
| » Defeated Astros (20-15), 4-2 | Riverfront Stadium (10-7) | 15-14 | Won 2 |
| » W: Clay Kirby (2-3) L: Don Wilson (1-2) | Fourth | 6½ out |
| Monday, May 13 |
| » Defeated Giants (19-16), 4-1 | Riverfront Stadium (11-7) | 16-14 | Won 3 |
| » W: Don Gullett (3-3) L: John D'Acquisto (2-4) S: Pedro Borbon (6) | Fourth | 6½ out |
| Tuesday, May 14 |
| » Lost to Giants (20-16), 4-0 | Riverfront Stadium (11-8) | 16-15 | |
| » W: Mike Caldwell (6-1) L: Jack Billingham (5-2) | Fourth | 7½ out |
| Future Red Jim Crowell is born in Minneapolis, MN. |
| Wednesday, May 15 |
| » Defeated Giants (20-17), 4-3 | Riverfront Stadium (12-8) | 17-15 | |
| » W: Roger Nelson (2-3) L: Tom Bradley (4-4) S: Pedro Borbon (7) | Third | 8 out |
| Friday, May 17 |
| » Defeated Astros (20-20), 4-2 | Astrodome (1-0) | 18-15 | Won 2 |
| » W: Fred Norman (3-3) L: Claude Osteen (4-4) S: Clay Carroll (1) | Second | 7 out |
| Saturday, May 18 |
| » Defeated Astros (20-21), 7-6 | Astrodome (2-0) | 19-15 | Won 3 |
| » W: Pedro Borbon (2-1) L: Fred Scherman (0-2) | Second | 7 out |
| Sunday, May 19 |
| » Defeated Astros (20-22), 7-1 | Astrodome (3-0) | 20-15 | Won 4 |
| » W: Don Gullett (4-3) L: Dave Roberts (5-5) | Second | 6 out |
| Monday, May 20 |
| » Lost to Dodgers (29-11), 5-3 | Dodger Stadium (0-1) | 20-16 | |
| » W: Tommy John (6-1) L: Jack Billingham (5-3) S: Mike Marshall (4) | Second | 7 out |
| Tuesday, May 21 |
| » Lost to Dodgers (30-11), 3-2 | Dodger Stadium (0-2) | 20-17 | Lost 2 |
| » W: Mike Marshall (2-1) L: Pedro Borbon (2-2) | Second | 8 out |
| Wednesday, May 22 |
| » Lost to Dodgers (31-11), 6-3 | Dodger Stadium (0-3) | 20-18 | Lost 3 |
| » W: Al Downing (2-2) L: Fred Norman (3-4) S: Mike Marshall (5) | Second | 9 out |
| Thursday, May 23 |
| » Lost to Padres (18-29), 5-4 | San Diego/Jack Murphy Stadium (0-1) | 20-19 | Lost 4 |
| » W: Dan Spillner (1-1) L: Fred Norman (3-5) | Third | 9 out |
| Friday, May 24 |
| » Defeated Padres (18-30), 6-3 | San Diego/Jack Murphy Stadium (1-1) | 21-19 | |
| » W: Don Gullett (5-3) L: Bill Greif (2-8) | Third | 8 out |
| Former Red Cliff Markle dies in Temple City, CA at the age of 81. |
| Saturday, May 25 |
| » Defeated Padres (18-31), 12-4 | San Diego/Jack Murphy Stadium (2-1) | 22-19 | Won 2 |
| » W: Jack Billingham (6-3) L: Steve Arlin (1-6) | Second | 8 out |
| Sunday, May 26 |
| » Defeated Padres (18-32), 4-1 | San Diego/Jack Murphy Stadium (3-1) | 23-19 | Won 3 |
| » W: Roger Nelson (3-3) L: Dave Freisleben (3-2) | Second | 8 out |
| Monday, May 27 |
| » Defeated Mets (20-25), 4-2 | Riverfront Stadium (13-8) | 24-19 | Won 4 |
| » W: Fred Norman (4-5) L: Tom Seaver (2-5) | Second | 7 out |
| Tuesday, May 28 |
| » Defeated Mets (20-26), 7-2 | Riverfront Stadium (14-8) | 25-19 | Won 5 |
| » W: Clay Kirby (3-3) L: George Stone (2-4) | Second | 7 out |
| Wednesday, May 29 |
| » Defeated Mets (20-27), 3-2 | Riverfront Stadium (15-8) | 26-19 | Won 6 |
| » W: Clay Carroll (3-0) L: Harry Parker (1-3) | Second | 7 out |
| Friday, May 31 |
| » Defeated Pirates (17-27), 7-5 | Riverfront Stadium (16-8) | 27-19 | Won 7 |
| » W: Pedro Borbon (3-2) L: Jim Rooker (2-4) | Second | 7 out |
| Saturday, June 1 |
| » Lost to Pirates (18-27), 14-1 | Riverfront Stadium (16-9) | 27-20 | |
| » W: Ken Brett (6-3) L: Roger Nelson (3-4) | Second | 8 out |
| Sunday, June 2 |
| » Defeated Pirates (18-28), 5-1 | Riverfront Stadium (17-9) | 28-20 | |
| » W: Fred Norman (5-5) L: Bruce Kison (2-3) | Second | 7 out |
| » Major-league debuts: Larry Demery (Pirates) |
| Monday, June 3 |
| » Defeated Mets (21-29), 5-2 | Shea Stadium (1-0) | 29-20 | Won 2 |
| » W: Clay Kirby (4-3) L: Jon Matlack (5-3) | Second | 6½ out |
| Tuesday, June 4 |
| » Defeated Mets (21-30), 6-3 | Shea Stadium (2-0) | 30-20 | Won 3 |
| » W: Pedro Borbon (4-2) L: Ray Sadecki (2-2) | Second | 6½ out |
| Thursday, June 6 |
| » Lost to Mets (22-30), 4-3 | Shea Stadium (2-1) | 30-21 | |
| » W: Ray Sadecki (3-2) L: Pedro Borbon (4-3) | Second | 8 out |
| Friday, June 7 |
| » Defeated Phillies (29-25), 7-4 | Veteran's Stadium (1-0) | 31-21 | |
| » W: Pedro Borbon (5-3) L: Mac Scarce (3-4) | Second | 8 out |
| Saturday, June 8 |
| » Lost to Phillies (30-25), 6-5 | Veteran's Stadium (1-1) | 31-22 | |
| » W: Steve Carlton (8-4) L: Clay Carroll (3-1) | Second | 8 out |
| Sunday, June 9 |
| » Defeated Phillies (30-26), 14-7 | Veteran's Stadium (2-1) | 32-22 | |
| » W: Don Gullett (6-3) L: Wayne Twitchell (0-1) | Second | 8 out |
| Monday, June 10 |
| » Lost to Expos (25-25), 3-1 | Parc Jarry (0-1) | 32-23 | |
| » W: Steve Renko (4-6) L: Jack Billingham (6-4) S: Chuck Taylor (6) | Second | 8 out |
| Tuesday, June 11 |
| » Lost to Expos (26-25), 16-6 | Parc Jarry (0-2) | 32-24 | Lost 2 |
| » W: Tom Walker (2-1) L: Tom Hall (0-1) | Second | 8 out |
| Wednesday, June 12 |
| » Defeated Expos (26-26), 3-1 | Parc Jarry (1-2) | 33-24 | |
| » W: Clay Kirby (5-3) L: Steve Rogers (7-6) | Second | 7 out |
| Friday, June 14 |
| » Defeated Phillies (32-28), 7-4 | Riverfront Stadium (18-9) | 34-24 | Won 2 |
| » W: Don Gullett (7-3) L: Ron Schueler (3-7) | Second | 7 out |
| Saturday, June 15 |
| » Lost to Phillies (33-28), 5-2 | Riverfront Stadium (18-10) | 34-25 | |
| » W: Jim Lonborg (8-5) L: Jack Billingham (6-5) | Second | 7 out |
| Sunday, June 16 |
| » Defeated Phillies (33-29), 5-0 | Riverfront Stadium (19-10) | 35-25 | |
| » W: Clay Carroll (4-1) L: Dick Ruthven (2-4) | Second | 7 out |
| Monday, June 17 |
| » Defeated Expos (28-28), 12-3 | Riverfront Stadium (20-10) | 36-25 | Won 2 |
| » W: Fred Norman (6-5) L: Steve Rogers (7-7) | Second | 6 out |
| Former Red Walt Slagle dies in San Gabriel, CA at the age of 96. |
| Tuesday, June 18 |
| » Lost to Expos (29-28), 2-1 | Riverfront Stadium (20-11) | 36-26 | |
| » W: Ernie McAnally (5-6) L: Clay Kirby (5-4) | Second | 6 out |
| Wednesday, June 19 |
| » Lost to Expos (30-28), 4-2 | Riverfront Stadium (20-12) | 36-27 | Lost 2 |
| » W: Mike Torrez (7-4) L: Don Gullett (7-4) S: John Montague (1) | Third | 6 out |
| Friday, June 21 |
| » Lost to Braves (39-27), 1-0 | Riverfront Stadium (20-13) | 36-28 | Lost 3 |
| » W: Carl Morton (9-6) L: Jack Billingham (6-6) S: Tom House (6) | Third | 7 out |
| Saturday, June 22 |
| » Defeated Braves (39-28), 3-2 | Riverfront Stadium (21-13) | 37-28 | |
| » W: Fred Norman (7-5) L: Phil Niekro (8-5) | Third | 7 out |
| Sunday, June 23 |
| » Defeated Braves (39-29), 4-2 | Riverfront Stadium (22-13) | 38-28 | Won 2 |
| » W: Roger Nelson (4-4) L: Roric Harrison (6-8) | Second | 6½ out |
| » Defeated Braves (39-30), 2-1 | Riverfront Stadium (23-13) | 39-28 | Won 3 |
| » W: Pedro Borbon (6-3) L: Joe Niekro (0-1) | Second | 6½ out |
| Monday, June 24 |
| » Lost to Astros (36-35), 6-1 | Astrodome (3-1) | 39-29 | |
| » W: Tom Griffin (8-3) L: Don Gullett (7-5) | Second | 6½ out |
| Tuesday, June 25 |
| » Defeated Astros (36-36), 3-2 | Astrodome (4-1) | 40-29 | |
| » W: Jack Billingham (7-6) L: Larry Dierker (5-4) S: Clay Carroll (2) | Second | 6½ out |
| Wednesday, June 26 |
| » Defeated Astros (36-37), 9-1 | Astrodome (5-1) | 41-29 | Won 2 |
| » W: Fred Norman (8-5) L: Don Wilson (3-6) | Second | 6½ out |
| Thursday, June 27 |
| » Defeated Braves (40-33), 6-3 | Atlanta-Fulton County Stadium (2-1) | 42-29 | Won 3 |
| » W: Clay Kirby (6-4) L: Phil Niekro (8-6) S: Pedro Borbon (8) | Second | 6 out |
| Future Red Andy Larkin is born in Chelan, WA. |
| Friday, June 28 |
| » Defeated Braves (40-34), 6-5 | Atlanta-Fulton County Stadium (3-1) | 43-29 | Won 4 |
| » W: Clay Carroll (5-1) L: Roric Harrison (6-9) S: Pedro Borbon (9) | Second | 6½ out |
| » Lost to Braves (41-34), 1-0 | Atlanta-Fulton County Stadium (3-2) | 43-30 | |
| » W: Buzz Capra (9-2) L: Don Gullett (7-6) | Second | 6½ out |
| Saturday, June 29 |
| » Defeated Braves (41-35), 2-1 | Atlanta-Fulton County Stadium (4-2) | 44-30 | |
| » W: Jack Billingham (8-6) L: Ron Reed (5-4) | Second | 6½ out |
| Sunday, June 30 |
| » Lost to Braves (42-35), 7-3 | Atlanta-Fulton County Stadium (4-3) | 44-31 | |
| » W: Carl Morton (10-6) L: Fred Norman (8-6) | Second | 7½ out |
| Tuesday, July 2 |
| » Lost to Dodgers (53-24), 3-2 | Riverfront Stadium (23-14) | 44-32 | Lost 2 |
| » W: Mike Marshall (10-3) L: Pedro Borbon (6-4) | Second | 8½ out |
| Future Red Sean Casey is born in Willingboro, NJ. |
| Wednesday, July 3 |
| » Lost to Dodgers (54-24), 4-1 | Riverfront Stadium (23-15) | 44-33 | Lost 3 |
| » W: Tommy John (12-2) L: Clay Carroll (5-2) S: Mike Marshall (11) | Second | 8½ out |
| » Defeated Dodgers (54-25), 6-0 | Riverfront Stadium (24-15) | 45-33 | |
| » W: Don Gullett (8-6) L: Doug Rau (6-5) | Second | 8½ out |
| » Major-league debuts: Will McEnaney (Reds) |
| Thursday, July 4 |
| » Lost to Dodgers (55-25), 3-2 | Riverfront Stadium (24-16) | 45-34 | |
| » W: Mike Marshall (11-3) L: Pedro Borbon (6-5) | Second | 9½ out |
| Friday, July 5 |
| » Lost to Cardinals (42-36), 3-2 | Riverfront Stadium (24-17) | 45-35 | Lost 2 |
| » W: Rich Folkers (2-0) L: Fred Norman (8-7) S: Mike Garman (3) | Second | 10 out |
| Saturday, July 6 |
| » Lost to Cardinals (43-36), 3-1 | Riverfront Stadium (24-18) | 45-36 | Lost 3 |
| » W: Bob Gibson (5-8) L: Clay Kirby (6-5) | Second | 10 out |
| Sunday, July 7 |
| » Defeated Cardinals (43-37), 2-1 | Riverfront Stadium (25-18) | 46-36 | |
| » W: Tom Carroll (1-0) L: Bob Forsch (0-1) S: Will McEnaney (1) | Second | 10 out |
| » Defeated Cardinals (43-38), 11-2 | Riverfront Stadium (26-18) | 47-36 | Won 2 |
| » W: Don Gullett (9-6) L: Mike Thompson (0-3) | Second | 10 out |
| » Major-league debuts: Tom Carroll (Reds) Bob Forsch (Cardinals) |
| Tuesday, July 9 |
| » Defeated Cubs (36-45), 8-5 | Wrigley Field (2-2) | 48-36 | Won 3 |
| » W: Jack Billingham (9-6) L: Steve Stone (3-3) S: Pedro Borbon (10) | Second | 10½ out |
| Wednesday, July 10 |
| » Lost to Cubs (37-45), 11-3 | Wrigley Field (2-3) | 48-37 | |
| » W: Bill Bonham (8-11) L: Fred Norman (8-8) S: Oscar Zamora (5) | Second | 10½ out |
| Thursday, July 11 |
| » Defeated Cubs (37-46), 4-3 | Wrigley Field (3-3) | 49-37 | |
| » W: Pedro Borbon (7-5) L: Burt Hooton (3-7) | Second | 10 out |
| Friday, July 12 |
| » Defeated Pirates (37-46), 7-0 | Three Rivers Stadium (2-0) | 50-37 | Won 2 |
| » W: Don Gullett (10-6) L: Jim Rooker (5-7) | Second | 8½ out |
| » Defeated Pirates (37-47), 4-3 | Three Rivers Stadium (3-0) | 51-37 | Won 3 |
| » W: Tom Carroll (2-0) L: Larry Demery (0-4) S: Clay Carroll (3) | Second | 8½ out |
| Saturday, July 13 |
| » Defeated Pirates (37-48), 9-4 | Three Rivers Stadium (4-0) | 52-37 | Won 4 |
| » W: Tom Hall (1-1) L: Jerry Reuss (8-7) S: Pedro Borbon (11) | Second | 8½ out |
| Sunday, July 14 |
| » Defeated Pirates (37-49), 3-2 | Three Rivers Stadium (5-0) | 53-37 | Won 5 |
| » W: Fred Norman (9-8) L: Ken Brett (11-6) S: Clay Carroll (4) | Second | 8 out |
| » Lost to Pirates (38-49), 2-1 | Three Rivers Stadium (5-1) | 53-38 | |
| » W: Bruce Kison (5-4) L: Jack Billingham (9-7) S: Dave Giusti (4) | Second | 8 out |
| Monday, July 15 |
| » Defeated Cardinals (44-45), 3-0 | Busch Stadium II (2-2) | 54-38 | |
| » W: Clay Kirby (7-5) L: Alan Foster (4-6) | Second | 7½ out |
| Former Red Claud Derrick dies in Clayton, GA at the age of 89. |
| Tuesday, July 16 |
| » Defeated Cardinals (44-46), 12-7 | Busch Stadium II (3-2) | 55-38 | Won 2 |
| » W: Don Gullett (11-6) L: Bob Forsch (1-2) | Second | 6½ out |
| Wednesday, July 17 |
| » Defeated Cardinals (44-47), 6-4 | Busch Stadium II (4-2) | 56-38 | Won 3 |
| » W: Will McEnaney (1-0) L: Rich Folkers (2-1) S: Pedro Borbon (12) | Second | 5½ out |
| Thursday, July 18 |
| » Lost to Cubs (40-50), 3-2 | Riverfront Stadium (26-19) | 56-39 | |
| » W: Bill Bonham (9-11) L: Fred Norman (9-9) S: Oscar Zamora (6) | Second | 6½ out |
| Friday, July 19 |
| » Defeated Cubs (40-51), 4-1 | Riverfront Stadium (27-19) | 57-39 | |
| » W: Jack Billingham (10-7) L: Dave LaRoche (1-3) S: Pedro Borbon (13) | Second | 6½ out |
| Saturday, July 20 |
| » Lost to Cubs (41-51), 11-6 | Riverfront Stadium (27-20) | 57-40 | |
| » W: Oscar Zamora (3-3) L: Clay Carroll (5-3) | Second | 6½ out |
| Sunday, July 21 |
| » Defeated Cubs (41-52), 8-2 | Riverfront Stadium (28-20) | 58-40 | |
| » W: Don Gullett (12-6) L: Burt Hooton (3-8) | Second | 5½ out |
| Thursday, July 25 |
| » Defeated Giants (45-54), 14-13 | Riverfront Stadium (29-20) | 59-40 | Won 2 |
| » W: Jack Billingham (11-7) L: Randy Moffitt (4-4) | Second | 5½ out |
| » Defeated Giants (45-55), 5-0 | Riverfront Stadium (30-20) | 60-40 | Won 3 |
| » W: Fred Norman (10-9) L: Ed Halicki (0-3) | Second | 5½ out |
| Friday, July 26 |
| » Lost to Giants (46-55), 5-4 | Riverfront Stadium (30-21) | 60-41 | |
| » W: Jim Barr (8-5) L: Don Gullett (12-7) S: Elias Sosa (4) | Second | 5½ out |
| Saturday, July 27 |
| » Defeated Padres (43-60), 5-1 | Riverfront Stadium (31-21) | 61-41 | |
| » W: Tom Carroll (3-0) L: Dave Freisleben (7-5) | Second | 4½ out |
| Sunday, July 28 |
| » Defeated Padres (43-61), 14-1 | Riverfront Stadium (32-21) | 62-41 | Won 2 |
| » W: Jack Billingham (12-7) L: Dan Spillner (5-6) | Second | 3½ out |
| Monday, July 29 |
| » Lost to Padres (44-61), 3-2 | Riverfront Stadium (32-22) | 62-42 | |
| » W: Bill Greif (6-11) L: Clay Kirby (7-6) | Second | 4½ out |
| Tuesday, July 30 |
| » Lost to Astros (55-49), 8-4 | Riverfront Stadium (32-23) | 62-43 | Lost 2 |
| » W: Don Wilson (7-8) L: Fred Norman (10-10) | Second | 5½ out |
| Wednesday, July 31 |
| » Defeated Astros (55-50), 4-0 | Riverfront Stadium (33-23) | 63-43 | |
| » W: Don Gullett (13-7) L: Tom Griffin (11-4) | Second | 5½ out |
| Thursday, August 1 |
| » Defeated Giants (48-59), 9-7 | Candlestick Park (2-2) | 64-43 | Won 2 |
| » W: Clay Carroll (6-3) L: Ron Bryant (2-12) | Second | 5½ out |
| Friday, August 2 |
| » Defeated Giants (48-60), 9-4 | Candlestick Park (3-2) | 65-43 | Won 3 |
| » W: Jack Billingham (13-7) L: Ed Halicki (1-4) | Second | 5½ out |
| Sunday, August 4 |
| » Defeated Padres (44-66), 7-2 | San Diego/Jack Murphy Stadium (4-1) | 66-43 | Won 4 |
| » W: Dick Baney (1-0) L: Randy Jones (7-15) | Second | 6½ out |
| » Lost to Padres (45-66), 1-0 | San Diego/Jack Murphy Stadium (4-2) | 66-44 | |
| » W: Rusty Gerhardt (1-0) L: Pedro Borbon (7-6) | Second | 6½ out |
| Monday, August 5 |
| » Lost to Dodgers (73-37), 6-3 | Dodger Stadium (0-4) | 66-45 | Lost 2 |
| » W: Doug Rau (11-6) L: Don Gullett (13-8) | Second | 7½ out |
| Tuesday, August 6 |
| » Defeated Dodgers (73-38), 6-3 | Dodger Stadium (1-4) | 67-45 | |
| » W: Pedro Borbon (8-6) L: Mike Marshall (11-7) | Second | 6½ out |
| Wednesday, August 7 |
| » Defeated Dodgers (73-39), 2-0 | Dodger Stadium (2-4) | 68-45 | Won 2 |
| » W: Jack Billingham (14-7) L: Andy Messersmith (13-3) | Second | 5½ out |
| Friday, August 9 |
| » Lost to Mets (48-61), 4-1 | Shea Stadium (2-2) | 68-46 | |
| » W: Bob Apodaca (4-5) L: Fred Norman (10-11) | Second | 5½ out |
| » Major-league debuts: Junior Kennedy (Reds) |
| Saturday, August 10 |
| » Defeated Mets (48-62), 5-3 | Shea Stadium (3-2) | 69-46 | |
| » W: Clay Carroll (7-3) L: Ray Sadecki (4-6) | Second | 5½ out |
| Sunday, August 11 |
| » Defeated Mets (48-63), 10-4 | Shea Stadium (4-2) | 70-46 | Won 2 |
| » W: Tom Carroll (4-0) L: Jerry Koosman (11-8) S: Tom Hall (1) | Second | 5½ out |
| Monday, August 12 |
| » Lost to Pirates (58-58), 7-4 | Riverfront Stadium (33-24) | 70-47 | |
| » W: Jerry Reuss (12-9) L: Clay Kirby (7-7) S: Dave Giusti (7) | Second | 5½ out |
| Tuesday, August 13 |
| » Lost to Pirates (59-58), 14-3 | Riverfront Stadium (33-25) | 70-48 | Lost 2 |
| » W: Larry Demery (3-4) L: Jack Billingham (14-8) | Second | 5½ out |
| Future Red Scott MacRae is born in Dearborn, MI. |
| Wednesday, August 14 |
| » Defeated Pirates (59-59), 3-2 | Riverfront Stadium (34-25) | 71-48 | |
| » W: Clay Carroll (8-3) L: Bruce Kison (6-7) | Second | 4½ out |
| Friday, August 16 |
| » Lost to Mets (52-63), 2-1 | Riverfront Stadium (34-26) | 71-49 | |
| » W: Tug McGraw (4-6) L: Will McEnaney (1-1) | Second | 4½ out |
| Saturday, August 17 |
| » Defeated Mets (52-64), 6-2 | Riverfront Stadium (35-26) | 72-49 | |
| » W: Jack Billingham (15-8) L: Harry Parker (4-11) | Second | 3½ out |
| Sunday, August 18 |
| » Defeated Mets (52-65), 6-5 | Riverfront Stadium (36-26) | 73-49 | Won 2 |
| » W: Clay Carroll (9-3) L: Jon Matlack (11-10) S: Will McEnaney (2) | Second | 2½ out |
| Monday, August 19 |
| » Defeated Phillies (62-60), 15-2 | Riverfront Stadium (37-26) | 74-49 | Won 3 |
| » W: Don Gullett (14-8) L: Wayne Twitchell (6-5) | Second | 2½ out |
| » Major-league debuts: Tom Underwood (Phillies) |
| Tuesday, August 20 |
| » Defeated Phillies (62-61), 7-1 | Riverfront Stadium (38-26) | 75-49 | Won 4 |
| » W: Clay Kirby (8-7) L: Ron Schueler (7-12) | Second | 2½ out |
| Wednesday, August 21 |
| » Lost to Phillies (63-61), 10-3 | Riverfront Stadium (38-27) | 75-50 | |
| » W: Jim Lonborg (14-11) L: Tom Carroll (4-1) | Second | 3½ out |
| Friday, August 23 |
| » Defeated Expos (58-64), 10-7 | Parc Jarry (2-2) | 76-50 | |
| » W: Clay Carroll (10-3) L: Tom Walker (2-4) | Second | 2½ out |
| Saturday, August 24 |
| » Defeated Expos (58-65), 6-4 | Parc Jarry (3-2) | 77-50 | Won 2 |
| » W: Don Gullett (15-8) L: Steve Rogers (12-17) | Second | 2½ out |
| Sunday, August 25 |
| » Defeated Expos (58-66), 3-1 | Parc Jarry (4-2) | 78-50 | Won 3 |
| » W: Clay Kirby (9-7) L: Dennis Blair (7-6) | Second | 2½ out |
| Monday, August 26 |
| » Lost to Phillies (64-64), 7-6 | Veteran's Stadium (2-2) | 78-51 | |
| » W: Ron Schueler (8-12) L: Clay Carroll (10-4) | Second | 3 out |
| Tuesday, August 27 |
| » Defeated Phillies (64-65), 3-0 | Veteran's Stadium (3-2) | 79-51 | |
| » W: Jack Billingham (16-8) L: Dick Ruthven (6-11) | Second | 3 out |
| Wednesday, August 28 |
| » Defeated Phillies (64-66), 4-3 | Veteran's Stadium (4-2) | 80-51 | Won 2 |
| » W: Will McEnaney (2-1) L: Ron Schueler (8-13) S: Dick Baney (1) | Second | 3 out |
| Friday, August 30 |
| » Lost to Expos (60-69), 11-3 | Riverfront Stadium (38-28) | 80-52 | |
| » W: Dennis Blair (8-6) L: Clay Kirby (9-8) | Second | 3½ out |
| Saturday, August 31 |
| » Defeated Expos (60-70), 10-3 | Riverfront Stadium (39-28) | 81-52 | |
| » W: Jack Billingham (17-8) L: Steve Renko (9-13) | Second | 2½ out |
| Sunday, September 1 |
| » Lost to Expos (61-70), 2-1 | Riverfront Stadium (39-29) | 81-53 | |
| » W: Mike Torrez (11-8) L: Don Gullett (15-9) | Second | 3½ out |
| Monday, September 2 |
| » Lost to Astros (69-65), 4-3 | Astrodome (5-2) | 81-54 | Lost 2 |
| » W: Larry Dierker (9-8) L: Tom Carroll (4-2) S: Ken Forsch (7) | Second | 3½ out |
| Tuesday, September 3 |
| » Defeated Astros (69-66), 7-5 | Astrodome (6-2) | 82-54 | |
| » W: Pedro Borbon (9-6) L: Ken Forsch (5-6) | Second | 2½ out |
| Wednesday, September 4 |
| » Defeated Astros (69-67), 2-1 | Astrodome (7-2) | 83-54 | Won 2 |
| » W: Jack Billingham (18-8) L: Don Wilson (10-11) | Second | 2½ out |
| Friday, September 6 |
| » Lost to Dodgers (86-51), 3-1 | Riverfront Stadium (39-30) | 83-55 | |
| » W: Don Sutton (14-9) L: Don Gullett (15-10) S: Mike Marshall (20) | Second | 3½ out |
| Saturday, September 7 |
| » Defeated Dodgers (86-52), 7-5 | Riverfront Stadium (40-30) | 84-55 | |
| » W: Clay Carroll (11-4) L: Mike Marshall (13-11) | Second | 2½ out |
| Sunday, September 8 |
| » Lost to Dodgers (87-52), 7-4 | Riverfront Stadium (40-31) | 84-56 | |
| » W: Doug Rau (13-7) L: Jack Billingham (18-9) | Second | 3½ out |
| » Major-league debuts: John Hale (Dodgers) |
| Monday, September 9 |
| » Defeated Padres (51-91), 8-3 | Riverfront Stadium (41-31) | 85-56 | |
| » W: Fred Norman (11-11) L: Dave Freisleben (9-11) S: Pedro Borbon (14) | Second | 3½ out |
| Tuesday, September 10 |
| » Defeated Padres (51-92), 5-2 | Riverfront Stadium (42-31) | 86-56 | Won 2 |
| » W: Don Gullett (16-10) L: Joe McIntosh (0-2) | Second | 3½ out |
| » Major-league debuts: Ray Knight (Reds) |
| Wednesday, September 11 |
| » Tied Braves, 1-1 | Riverfront Stadium (42-31) | 86-56 | |
| » Starters: Phil Niekro vs Clay Kirby | Second | 4 out |
| Thursday, September 12 |
| » Defeated Braves (78-66), 9-6 | Riverfront Stadium (43-31) | 87-56 | Won 3 |
| » W: Pedro Borbon (10-6) L: Ron Reed (10-9) S: Clay Carroll (5) | Second | 3½ out |
| » Defeated Braves (78-67), 6-2 | Riverfront Stadium (44-31) | 88-56 | Won 4 |
| » W: Pat Darcy (1-0) L: Lew Krausse (4-3) | Second | 3½ out |
| » Major-league debuts: Pat Darcy and Rawly Eastwick (Reds) |
| Friday, September 13 |
| » Defeated Dodgers (91-53), 6-3 | Dodger Stadium (3-4) | 89-56 | Won 5 |
| » W: Jack Billingham (19-9) L: Doug Rau (13-8) | Second | 2½ out |
| » Major-league debuts: Ivan DeJesus (Dodgers) |
| Saturday, September 14 |
| » Defeated Dodgers (91-54), 4-2 | Dodger Stadium (4-4) | 90-56 | Won 6 |
| » W: Don Gullett (17-10) L: Geoff Zahn (3-5) S: Clay Carroll (6) | Second | 1½ out |
| Sunday, September 15 |
| » Lost to Dodgers (92-54), 7-1 | Dodger Stadium (4-5) | 90-57 | |
| » W: Don Sutton (16-9) L: Fred Norman (11-12) | |