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
Who will win the next New York City mayoral election?
9%
Kalshi
Who will win the next New York City mayoral election?
82%
Kalshi
Who will win the Ballon d'Or in 2027?
24%
Kalshi
Who will win the Ballon d'Or in 2027?
44%
Kalshi
Who will win the Ballon d'Or in 2027?
23%
Kalshi
Who will win the Ballon d'Or in 2027?
0%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.