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Track Size*
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Inner: .48 mi
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Middle: .51 mi
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Outer: .54 mi
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Width: 458 ft
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Length: 1224 ft
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* - Measured using Google Maps "Measure Distance" functionality
Count: 18
| Race Date | Class | Series | Race | Car Count | Winner | Start | Story |
| Sunday, March 15, 2020 | Wing | | Opening Day | 32 | Carson Macedo | 3 | Invader Carson Macedo Claims Williams Grove Opening Day Sprints Victory | |
| Friday, June 26, 2020 | Wing | | PA Speedweek | 38 | Lance DeWease | 2 | Dewease Wins Kickoff Of Speedweek At Williams Grove, Outruns Larson | |
| Friday, July 3, 2020 | Wing | | PA Speedweek Mitch Smith Memorial | 38 | Kyle Larson | 3 | KYLE LARSON WINS MITCH SMITH MEMORIAL AND $15K FRIDAY NIGHT AT WILLIAMS GROVE SPEEDWAY | |
| Friday, July 10, 2020 | Wing | | | 25 | Steve Buckwalter | 1 | Buckwalter Wires Field For Williams Grove 410 Sprint Win | |
| Wing 360 | URC | | 28 | Anthony Macri | 2 | Anthony Macri gets First Williams Grove Win with the United Racing Club | |
| Friday, July 17, 2020 | Wing | AS | Tommy Hinnershitz Memorial | 39 | Kyle Larson | 5 | Kyle Larson defeats All Stars and Posse for Tommy Hinnershitz Classic victory | |
| Friday, July 24, 2020 | Wing | WoO | Summer Nationals | 35 | Shane Stewart | 1 | CAPITALIZING MOMENT: Shane Stewart Wins Summer Nationals Opener At Williams Grove | |
| Saturday, July 25, 2020 | Wing | WoO | Summer Nationals | 32 | David Gravel | 2 | CLEAN AIR CRUISING: David Gravel wins Summer Nationals at Williams Grove | |
| Friday, July 31, 2020 | Wing | | | 20 | Danny Dietrich | 3 | Dietrich Steals Lead From Macri For First Williams Grove Sprints Win Of Season | |
| Friday, August 14, 2020 | Wing | | | 25 | Brent Marks | 4 | Marks Gets To Williams Grove Victory Lane | |
| Wingless 360 | USACEC | | 21 | Steven Drevicki | 6 | USAC EC WILLIAMS GROVE DEBUT BELONGS TO DREVICKI | |
| Friday, August 21, 2020 | Wing | | | 21 | Freddie Rahmer | 13 | FREDDIE RAHMER SCORES FIRST OF YEAR IN WILLIAMS GROVE SPRINTS | |
| Late Model | WoOLM | | 39 | Brandon Sheppard | 2 | KEYSTONE KING: Sheppard Outruns PA Posse at Williams Grove for 13th Win | |
| Friday, September 4, 2020 | Wing | | Bob Stewart Tribute Race | 24 | Freddie Rahmer | 3 | Rahmer Wins On Wild Night At Williams Grove | |
| Friday, September 18, 2020 | Wing | AS | Jack Gunn Memorial | 33 | Aaron Reutzel | 4 | Aaron Reutzel wins Jack Gunn Memorial at Williams Grove Speedway | |
| Friday, September 25, 2020 | Wing | | | 29 | Freddie Rahmer | 1 | Freddie Rahmer Wins Third Of Williams Grove Season Friday | |
| Friday, October 2, 2020 | Wing | WoO | National Open prelim | 57 | David Gravel | 2 | OPENING ATTACK: David Gravel Wins At Williams Grove In His 600th Start | |
| Saturday, October 3, 2020 | Wing | WoO | National Open | 54 | Donny Schatz | 4 | JUST WHAT HE NEEDED: Donny Schatz claims sixth National Open title, $75K top prize | |
