ARCA Menards Series 2021: Race 17/20
| Race | Southern Illinois 100 presented by Lucas Oil |
| Date | Sunday, Sept. 5, 2021 |
| Track | DuQuoin State Fairgrounds |
| Layout | One-mile dirt track |
| Location | DuQuoin, Illinois |
| Start time | 8 p.m. CT / 9 p.m. ET |
| Laps | 100 |
| Miles | 100 |
| TV channel | MAVTV |
| Live stream | TrackPass |
| Radio | ARCARacing.com |
| Winner | Landen Lewis |
Quick links:
- Entry List
- Practice Results
- Qualifying Results
- Race Results
- Race Recap
- Past ARCA Menards Series Races at DuQuoin
- ARCA Menards Series Drivers at DuQuoin
Race highlights: Southern Illinois 100 presented by Lucas Oil
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