Oklahoma State vs Iowa State odds: Kalshi vs PolymarketFinished
College football, Friday, October 30, 2026. This game is over. The prices below are the last we read before it came off the board, 14 hours ago.
| Team | Kalshi | Polymarket |
|---|---|---|
| Oklahoma State | 24¢ | 62¢ |
| Iowa State | 76¢ | 39¢ |
Green is the cheapest venue for that team. Best ask only, before fees.
What we saw on this game
Biggest price difference: Oklahoma State was 38¢ apart: Kalshi 24¢ vs Polymarket 62¢, Sat, Oct 31, 10:57 PM ET.
Best spread after fees: buying both sides on Kalshi and Polymarket returned about 9.3% after fees at its best, and a spread that paid after fees was listed for about 4 minutes in all. Prices can move before both orders fill.
From Kalshi and Polymarket prices read about once a minute, Sat, Oct 31, 1:56 AM to 10:57 PM ET.
On the venues: Kalshi · Polymarket
Why are the prices different?
Kalshi and Polymarket are separate exchanges with different traders and fees, so Oklahoma State and Iowa State can trade at different prices on each for minutes at a time. If buying Oklahoma State on one venue and Iowa State 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.
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.