| Club Records -- Batting | Opponent | Date |
|---|---|---|
| Most hits -- 28 | Philadelphia | 5/13/1902 |
| Colorado | 5/19/1999 | |
| Most extra-base hits -- 15 | Colorado | 5/19/1999 |
| Most runs -- 26 | Boston | 6/4/1911 |
| Most home runs -- 9 | Philadelphia | 9/4/1999 |
| Most home runs, inning -- 4 | Colorado | 8/17/1996 |
| Most home runs, pinch-hitters, inning -- 2 | Atlanta | 6/22/1995 |
| Most grand slams -- 2 | Montreal | 8/21/1999 |
| Most total bases -- 55 | Colorado | 5/19/1999 |
| Most strikeouts -- 18 | Houston | 7/14/1968 |
| Chicago | 8/26/1998 | |
| Most strikeouts, extra innings -- 22 (19 innings) | Los Angeles | 8/8/1972 |
| Most walks by Reds batters -- 16 (14 innings) | Atlanta | 10/1/1978 |
| Individual Records -- Batting | Player(s) | Opponent | Date |
|---|---|---|---|
| Hitting for the cycle | Eric Davis | San Diego | 6/2/1989 |
| Most hits -- 6 | Tony Cuccinello | Boston | 8/13/1931 |
| Most hits, inning -- 2 | Adam Dunn | Houston | 8/22/2006 |
| Most doubles -- 4 | Billy Hatcher | Chicago | 8/21/1990 |
| Most doubles, inning -- 2 | Sean Casey | Milwaukee | 8/7/1998 |
| Most triples -- 3 (seven times) | Herm Winningham | St. Louis | 8/15/1990 |
| Most triples, inning -- 2 | Curt Walker | N/A | 1926 |
| Most home runs -- 3 | Drew Stubbs | Chicago | 7/4/2010 |
| Joey Votto | Chicago | 5/7/2008 | |
| Most home runs, inning -- 2 | Aaron Boone | San Diego | 8/9/2002 |
| Most grand slams -- 1 | Reggie Taylor | San Diego | 8/9/2003 |
| Most RBIs -- 10 | Walker Cooper | Chicago | 7/6/1949 |
| Most RBIs, consecutive innings -- 7 | Joe Morgan | Philadelphia | 8/19/1974 |
| Most total bases -- 15 | Walker Cooper | Chicago | 7/6/1949 |
| Most runs -- 5 | Sean Casey | Colorado | 5/19/1999 |
| Jeffrey Hammonds | Colorado | 5/19/1999 | |
| Most walks -- 5 | Johnny Bench | Chicago | 7/22/1979 |
| Most strikeouts -- 5 | Adam Dunn | Arizona | 8/20/2002 |
| Most stolen bases -- 5 | Ryan Freel | Los Angeles | 7/27/2005 |
| Club Records -- Pitching | Opponent | Date |
|---|---|---|
| Most runs allowed -- 21 | Brooklyn | 9/23/1901 |
| Most home runs allowed -- 5 (Most Recent) | Chicago | 7/18/2005 |
| Most strikeouts -- 18 | New York | 5/21/1963 |
| Most wild pitches -- 5 | Minnesota | 6/8/1999 |
| Individual Records -- Pitching | Player(s) | Opponent | Date |
|---|---|---|---|
| Most at-bats faced -- 49 | Bill Phillips | Philadelphia | 6/24/1901 |
| Most hits allowed -- 26 | Harley "Doc" Parker | Brooklyn | 6/21/1901 |
| Fewest hits allowed, doubleheader, 18 innings -- 6 | Fred Toney | Pittsburgh | 7/1/1917 |
| Most runs allowed -- 21 | Harley "Doc" Parker | Brooklyn | 6/21/1901 |
| Most strikeouts -- 18 | Jim Maloney | New York | 6/14/1965 |
| Most strikeouts, nine innings -- 16 | Ron Villone | St. Louis | 9/20/2000 |
| Most consecutive strikeouts, relief pitcher -- 6 | Scott Williamson | Los Angeles | 5/27/1999 |
| Most walks -- 13 (10 innings) | Bud Podbielan | Brooklyn | 5/18/1953 |
| Most runs allowed -- 21 | Harley "Doc" Parker | Brooklyn | 6/21/1901 |
| Most home runs allowed -- 5 | Chris Reitsma | Milwaukee | 8/31/2002 |
| Most consecutive no-hit games -- 2 | Johnny Vander Meer | Boston | 6/11/1938 |
| Johnny Vander Meer | Boston | 6/15/1938 | |
| Most balks, inning -- 3 | Jim Owens | Los Angeles | 4/24/1963 |
| Most home runs allowed, inning -- 4 | Brandon Claussen | Milwaukee | 4/22/2006 |
