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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Who will run for the Republican presidential nomination in 2028?
19%
– 0.0pt
Vol $0 today · $504 total
Possibly the same event, on the other platform
Polymarket
Will J.D. Vance win the 2028 Republican presidential nomination?
39%
Polymarket
Will John Thune win the 2028 Republican presidential nomination?
0%
Polymarket
Will Candace Owens win the 2028 Republican presidential nomination?
0%
Polymarket
Will Marco Rubio win the 2028 Republican presidential nomination?
18%
Polymarket
Will Elon Musk win the 2028 Republican presidential nomination?
1%
Polymarket
Will Tucker Carlson win the 2028 Republican presidential nomination?
3%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.