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Notre Dame Fighting Irish vs Villanova Wildcats odds: Kalshi vs PolymarketIn progress

College basketball, Sun, Nov 1, 9:30 AM ET, in progress. The price to buy each team on each venue, updated 1 minute ago.

TeamKalshiPolymarket
Notre Dame Fighting Irish33¢35¢
Villanova Wildcats72¢72¢

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

The cheapest way to cover both teams is 105¢ (Notre Dame Fighting Irish on Kalshi, Villanova Wildcats 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: Villanova Wildcats was 8¢ apart: Kalshi 76¢ vs Polymarket 84¢, Sat, Oct 31, 8:32 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, Oct 31, 1:54 AM to Sun, Nov 1, 11:43 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 Notre Dame Fighting Irish and Villanova Wildcats can trade at different prices on each for minutes at a time. If buying Notre Dame Fighting Irish on one venue and Villanova Wildcats 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.