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 Gavin Newsom and Gretchen Whitmer be the 2028 Democratic Presidential ticket?
3%
– 0.4pt
Vol $100 today · $279 total
Possibly the same event, on the other platform
Polymarket
Will Gretchen Whitmer win the 2028 Democratic presidential nomination?
1%
Polymarket
Will Gavin Newsom win the 2028 Democratic presidential nomination?
17%
Polymarket
Will Gavin Newsom win the 2028 US Presidential Election?
11%
Polymarket
Will Gretchen Whitmer win the 2028 US Presidential Election?
0%
Polymarket
Will J.B. Pritzker win the 2028 Democratic presidential nomination?
1%
Polymarket
Will Chelsea Clinton win the 2028 Democratic presidential nomination?
1%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.