South Dakota–South Dakota State football rivalry
| First meeting | 1889 South Dakota 6, South Dakota State 6 |
|---|---|
| Latest meeting | November 8, 2025 South Dakota 24, South Dakota State 17 |
| Next meeting | October 31, 2026 |
| Statistics | |
| Meetings total | 118 |
| All-time series | South Dakota State leads, 58–53–7 |
| Largest victory | South Dakota, 73–6 (1912) |
| Longest win streak | South Dakota State, 10 (2001–2018) |
| Current win streak | South Dakota, 1 (2025–present) |
Locations of South Dakota and South Dakota State
The South Dakota–South Dakota State football rivalry (also the South Dakota Showdown Series or the Interstate Series) between the South Dakota Coyotes and the South Dakota State Jackrabbits is a yearly rivalry match-up in football between the two largest public universities in the state of South Dakota: the University of South Dakota in Vermillion and South Dakota State University in Brookings.