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 the Republican Party win the 2028 Washington House District 13, Position 1…
97%
Kalshi
Will the Democratic Party win the 2028 Washington House District 13, Position 1…
4%
Kalshi
Will the Republican Party win the 2028 Washington House District 13, Position 2…
97%
Kalshi
Will the Democratic Party win the 2028 Washington House District 13, Position 2…
4%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.