South Dakota Senate 2020 — Model Retrospective

The model's final pre-election forecast gave Mike Rounds a 68% chance of winning the South Dakota Senate 2020 primary. Mike Rounds won, matching the model's top pick.

1. Mike Rounds — 68% model odds (won)
2. Scyller J. Borglum — 32% model odds

Model accuracy · 2026 race forecasts