Count: 16
| Race Date | Class | Series | Race | Car Count | Winner | Start | Story |
| Sunday, April 11, 2021 | Wing 360 | | | 17 | Andy Forsberg | 6 | Andy Forsberg wins Petaluma | |
| Saturday, April 17, 2021 | Wingless 360 | HUNT | | 32 | Shawn Jones | | Shawn Jones wins HUNT at Petaluma | |
| Saturday, April 24, 2021 | Wing 360 | SCCT | | 26 | Shane Golobic | 2 | Golobic Blitzes SCCT Field | |
| Saturday, May 15, 2021 | Midget | USACMW | | 10 | Maria Cofer | 1 | MARIA COFER GOES WIRE-TO-WIRE AT PETALUMA | |
| Wingless 360 | USACWC | | 6 | Geoff Ensign | 1 | GEOFF ENSIGN POWERS TO PETALUMA WIN | |
| Saturday, May 22, 2021 | Wing | KoW | Salute To First Responders | 19 | Justin Sanders | 2 | JUSTIN SANDERS HOLDS OFF KAEDING TO WIN AT PETALUMA | |
| Saturday, June 19, 2021 | Wing 360 | SCCT | | 22 | Kaleb Montgomery | 3 | Kaleb Montgomery wins an entertaining Sprint Car Challenge Tour feature at Petaluma Speedway | |
| Saturday, July 10, 2021 | Wing | KoW | Salute to Baylands Raceway Park | 18 | Tim Kaeding | 5 | TIM KAEDING CLAIMS BAYLANDS TRIBUTE VICTORY AT PETALUMA | |
| Sunday, July 18, 2021 | Wing 360 | | | 11 | Colby Johnson | | Colby Johnson wins Petaluma | |
| Saturday, July 31, 2021 | Midget | USACMW | | 6 | Brody Fuson | 2 | BRODY FUSON BREAKS THROUGH AT PETALUMA | |
| Wingless 360 | USACWC | | 15 | Shawn Arriaga | 2 | SHAWN ARRIAGA WINS PETALUMA FEATURE | |
| Saturday, August 21, 2021 | Wingless 360 | HUNT | Soares Classic | 27 | Bradley Terrell | | Bradley Terrell Defends Home Turf and Wins Soares Classic with Hunt Series | |
| Sunday, August 29, 2021 | Wing | KoW | Fastest Four Days in Motorsports | 18 | Justin Sanders | 1 | SANDERS SNAGS ANOTHER PETALUMA WIN WHILE SCELZI WRAPS UP FASTEST FOUR DAYS TITLE | |
| Monday, September 6, 2021 | Wingless | USAC/CRA | | 15 | Austin Williams | 2 | AUSTIN WILLIAMS GOES WIRE-TO-WIRE AT PETALUMA | |
| Saturday, September 25, 2021 | Wing 360 | | Adobe Cup | 10 | Andy Forsberg | | Andy Forsberg wins Petaluma | |
| Saturday, October 16, 2021 | Wing 360 | SCCT | | 16 | Ryan Robinson | 1 | Robinson claims first SCCT victory at Petaluma Speedway | |
