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.
Will Galatasaray win the 2026-27 UEFA Champions League Championship?
Vol $20.5K today · $727.6K total
Will Jackson Koivun win a golf major championship after June 22, 2026 and before 2030?
Vol $0 today · $26 total
Kalshi is 51 points higher than Polymarket (52% vs 0%). They resolve on different dates (Jun 20 vs Jul 7), so they may not be exactly the same bet.
History starts when we first saw each market, so a newly added market has a short line.
| Polymarket | Kalshi | |
|---|---|---|
| Probability (Yes) | 0% | 52% |
| Change (24h) | +0.0 pt | +5.0 pt |
| Volume today | $20.5K | $0 |
| Total volume | $727.6K | $26 |
| Liquidity | $427.7K | — |
| Open interest | — | $26 |
| Resolves | 8mo | 45mo |
| Tracked for | 18 days | 18 days |
Resolution rules: read both before trusting a gap
Polymarket
This market will resolve according to the team that wins the 2026-27 UEFA Champions League Championship. If at any point it becomes impossible for a listed team to win the 2026-27 UEFA Champions League Championship per the rules of UEFA Champions League (e.g., they are eliminated in the playoffs), the corresponding market will resolve to "No". If the 2026-27 UEFA Champions League season is cancelled, postponed after June 19, 2027, 11:59 PM ET or there is otherwise no winner declared within that timeframe, this market will resolve to "Other". The primary resolution source will be official information from UEFA Champions League; however, a consensus of credible reporting may also be used.
Kalshi
If Jackson Koivun wins a golf major championship (including The Masters, PGA Championship, U.S. Open, and The Open Championship) before 2030, then the market resolves to Yes.
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Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.