Polymarket vs. Kalshi
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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.
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Will Pete Buttigieg defeat Marco Rubio in the 2028 presidential election, with Pete Buttigieg as the Democratic nominee and Marco Rubio as the Republican nominee?
2%
– 0.0pt
Vol $0 today · $1.4K total
Possibly the same event, on the other platform
Polymarket
Will Pete Buttigieg win the 2028 Democratic presidential nomination?
5%
Polymarket
Will Marco Rubio win the 2028 Republican presidential nomination?
13%
Polymarket
Will Pete Hegseth win the 2028 Republican presidential nomination?
0%
Polymarket
Will J.D. Vance win the 2028 Republican presidential nomination?
47%
Polymarket
Will Doug Burgum win the 2028 Republican presidential nomination?
0%
Polymarket
Will Kamala Harris win the 2028 Democratic presidential nomination?
7%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.