ARCA Menards Series 2025: Race 16/20
| Race | Southern Illinois 100 |
| Date | Sunday, Aug. 31, 2025 |
| Track | DuQuoin State Fairgrounds |
| Layout | One-mile dirt oval |
| Location | DuQuoin, Illinois |
| Start time | 7:30 p.m. CT / 8:30 p.m. ET |
| Laps | 100 |
| Miles | 100 |
| TV Channel | FS1 |
| Live stream | Fox Sports App |
| Radio | ARCARacing.com |
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