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 2028 US Presidential Election?
68%
Polymarket
Will the Democratic Party win the CA-23 House seat?
6%
Polymarket
Will the Democratic Party win the AZ-02 House seat?
4%
Polymarket
Will the Democratic Party win the NC-03 House seat?
78%
Polymarket
Will the Republicans win the 2028 US Presidential Election?
33%
Polymarket
Will MrBeast win the 2028 Democratic presidential nomination?
0%
Change ×
Will the Democratic Party win the 2028 Washington House District 19, Position 1 election?
13%
– 0.0pt
Vol $0 today · $0 total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.