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James Madison Dukes vs Delaware Fightin' Blue Hens odds: Kalshi vs PolymarketIn progress

College basketball, Wed, Nov 11, 7:00 PM ET, in progress. The price to buy each team on each venue, updated 1 minute ago.

TeamKalshiPolymarket
James Madison Dukes61¢61¢
Delaware Fightin' Blue Hens40¢40¢

Green is the cheapest venue for that team. Best ask only, before fees.

The cheapest way to cover both teams is 101¢ (James Madison Dukes on Kalshi, Delaware Fightin' Blue Hens on Polymarket), so there's no gap at these prices. Gaps open and close in minutes.
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What we've seen so far

Biggest price difference: Delaware Fightin' Blue Hens was 1¢ apart: Kalshi 39¢ vs Polymarket 40¢, Wed, Nov 11, 8:24 AM ET.

We didn't see a spread here that paid after fees on Kalshi and Polymarket so far.

From Kalshi and Polymarket prices read about once a minute, Sat, Nov 7, 10:00 PM to Wed, Nov 11, 9:10 AM ET.

On the venues: Kalshi · Polymarket

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Why are the prices different?

Kalshi and Polymarket are separate exchanges with different traders and fees, so James Madison Dukes and Delaware Fightin' Blue Hens can trade at different prices on each for minutes at a time. If buying James Madison Dukes on one venue and Delaware Fightin' Blue Hens on another costs less than $1 after fees, the difference is yours whoever wins, as long as both venues settle the game the same way. Read the step-by-step guide and the risks.

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Prices are each venue's best ask: the price to buy that team, before fees, at whatever size is for sale. A price of 45¢ means the market puts it at about 45%; each contract pays $1 if that team wins. Venues can settle a postponed or suspended game differently; check both venues' rules before trading. Not financial advice. ArbTrader isn't affiliated with Kalshi and Polymarket.