Richmond Spiders vs Southern Illinois Salukis odds: Kalshi vs PolymarketFinished
College basketball, Thu, Nov 12, 8:00 PM ET. This game is over. The prices below are the last we read before it came off the board, 17 hours ago.
| Team | Kalshi | Polymarket |
|---|---|---|
| Richmond Spiders | 1¢ | 0¢ |
| Southern Illinois Salukis | – | – |
Green is the cheapest venue for that team. Best ask only, before fees.
What we saw on this game
Biggest price difference: Richmond Spiders was 22¢ apart: Kalshi 42¢ vs Polymarket 20¢, Thu, Nov 12, 8:36 PM ET.
Best spread after fees: buying both sides on Kalshi and Polymarket returned about 17.8% after fees at its best, and a spread that paid after fees was listed for about 16 minutes in all. Prices can move before both orders fill.
From Kalshi and Polymarket prices read about once a minute, Sun, Nov 8, 11:04 PM to Thu, Nov 12, 10:05 PM ET.
On the venues: Kalshi · Polymarket
Why are the prices different?
Kalshi and Polymarket are separate exchanges with different traders and fees, so Richmond Spiders and Southern Illinois Salukis can trade at different prices on each for minutes at a time. If buying Richmond Spiders on one venue and Southern Illinois Salukis 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.