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
Kalshi
Will Republicans win the Senate race in Alaska?
66%
Kalshi
Will Republicans win the Senate race in Iowa?
63%
Kalshi
Will Republicans win the Senate race in Arizona?
28%
Kalshi
Will Democratics win the Senate race in Ohio?
47%
Kalshi
Will Republicans win the Senate race in Georgia?
35%
Kalshi
Will Republicans win the Senate race in South Carolina?
81%
Change ×
Will the Republicans win the Ohio governor race in 2026?
18%
▲ +1.5pt
Vol $35K today · $502.1K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.