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 Gavin Newsom win the 2028 US Presidential Election?
9%
Polymarket
Will Mark Kelly win the 2028 US Presidential Election?
1%
Polymarket
Will Elon Musk win the 2028 US Presidential Election?
0%
Polymarket
Will Rahm Emanuel win the 2028 US Presidential Election?
1%
Polymarket
Will Kamala Harris win the 2028 US Presidential Election?
4%
Polymarket
Will Raphael Warnock win the 2028 US Presidential Election?
1%
Change ×
Will Gavin Newsom be first this list to declare for 2028 United States presidential election before Nov 7, 2028?
16%
▲ +2.4pt
Vol $7 today · $18.3K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.