Odds › College basketball

Ohio Bobcats vs Purdue Boilermakers odds: Kalshi vs PolymarketIn progress

College basketball, Fri, Nov 13, 7:00 PM ET, in progress. The price to buy each team on each venue, updated 1 minute ago.

TeamKalshiPolymarket
Ohio Bobcats2¢2¢
Purdue Boilermakers99¢100¢

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

The cheapest way to cover both teams is 101¢ (Ohio Bobcats on Polymarket, Purdue Boilermakers on Kalshi), so there's no gap at these prices. Gaps open and close in minutes.
Get pinged when a game pays →

What we've seen so far

Biggest price difference: Purdue Boilermakers was 4¢ apart: Kalshi 95¢ vs Polymarket 99¢, Fri, Nov 13, 7:15 PM ET.

Best spread after fees: buying both sides on Kalshi and Polymarket returned about 0.9% after fees at its best, and a spread that paid after fees was listed for about 2 minutes in all. Prices can move before both orders fill.

From Kalshi and Polymarket prices read about once a minute, Mon, Nov 9, 10:07 PM to Fri, Nov 13, 8:19 PM ET.

On the venues: Kalshi · Polymarket

Show these odds on your site. A live widget for this game, free. Get the embed code →

Why are the prices different?

Kalshi and Polymarket are separate exchanges with different traders and fees, so Ohio Bobcats and Purdue Boilermakers can trade at different prices on each for minutes at a time. If buying Ohio Bobcats on one venue and Purdue Boilermakers 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.

More College basketball odds →

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.