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.
How many consecutive regular season games will Shai Gilgeous-Alexander score 20+ points?
Vol $0 today · $1.9K total
Kalshi is 18 points higher than Polymarket (74% vs 56%). They resolve on different dates (Oct 23 vs May 29), 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) | 56% | 74% |
| Change (24h) | +1.5 pt | +0.0 pt |
| Volume today | $108 | $0 |
| Total volume | $108 | $1.9K |
| Liquidity | $2K | — |
| Open interest | — | $360 |
| Resolves | 5h | 19mo |
| Tracked for | 14 hours | 13 days |
Resolution rules: read both before trusting a gap
Polymarket
In the upcoming NBA game, scheduled for October 22 at 9:30 PM ET: This market will resolve to "Yes" if Shai Gilgeous-Alexander records more than 3.5 total rebounds during the game. This market will resolve to "No" if Shai Gilgeous-Alexander records 3.5 rebounds or fewer during the game. The entire game including all overtime periods will be considered. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50. If the player is listed as inactive or otherwise does not take the court at any point, the market will resolve "No". The resolution source will be the official NBA box score as published on NBA.com.
Kalshi
If Shai Gilgeous-Alexander scores 20+ points in at least 145 consecutive Pro Basketball regular season games before May 15, 2028, 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.