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 Arizona?
25%
Kalshi
Will Republicans win the Senate race in Pennsylvania?
25%
Kalshi
Will Republicans win the Senate race in South Carolina?
78%
Kalshi
Will Republicans win the Senate race in North Carolina?
37%
Kalshi
Will the Republican party win the House, the Republican party win the Senate, a…
14%
Kalshi
Will Democratics win the Senate race in Kansas?
26%
Change ×
Will the Republicans win the Texas Senate race in 2026?
38%
– 0.0pt
Vol $110.3K today · $2.2M total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.