Polymarket vs. Kalshi
Compare markets
See where the two biggest prediction markets disagree. Pick any two markets, or start from the biggest gaps below: prices, volume, history and the resolution rules, side by side.
Possibly the same event, on the other platform
Polymarket
Will the Democrats win the Texas Senate race in 2026?
63%
Polymarket
Will the Republicans win the Texas Senate race in 2026?
39%
Polymarket
Will the Democrats win the Ohio Senate race in 2026?
64%
Polymarket
Will the Republicans win the Ohio Senate race in 2026?
36%
Polymarket
Will the Democrats win the South Carolina Senate race in 2026?
18%
Polymarket
Will the Republicans win the South Carolina Senate race in 2026?
83%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.