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 James Cleverly win the 2028 London mayoral election?
5%
▼ 1.1pt
Vol $0 today · $1.1K total
Possibly the same event, on the other platform
Polymarket
Will James Talarico win the 2028 US Presidential Election?
1%
Polymarket
Will LeBron James win the 2028 US Presidential Election?
0%
Polymarket
Will James Talarico win the 2028 Democratic presidential nomination?
3%
Polymarket
Will Ted Cruz win the 2028 US Presidential Election?
1%
Polymarket
Will Gavin Newsom win the 2028 US Presidential Election?
9%
Polymarket
Will Marco Rubio win the 2028 US Presidential Election?
9%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.