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Andrea Kimi Antonelli 89%
Next is Max Verstappen at 60.5%. Polymarket and Kalshi agree within 1 point on each matched outcome.
Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.
Prices come from our regular polls of each venue, the oldest 1 min ago. Ages are as of when this page was built.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 42¢ and selling on Kalshi at 85¢ nets 4300 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 9¢ and selling on Kalshi at 85¢ nets 7600 bps before fees.


Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 8¢ and selling on Kalshi at 84¢ nets 7600 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 9¢ and selling on Kalshi at 83¢ nets 7400 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 9¢ and selling on Kalshi at 83¢ nets 7400 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 4.9¢ and selling on Kalshi at 82¢ nets 7710 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 3.4¢ and selling on Kalshi at 81¢ nets 7760 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.9¢ and selling on Kalshi at 56¢ nets 5310 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.9¢ and selling on Kalshi at 50¢ nets 4710 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.9¢ and selling on Kalshi at 48¢ nets 4510 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.8¢ and selling on Kalshi at 38¢ nets 3520 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.8¢ and selling on Kalshi at 20¢ nets 1720 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.8¢ and selling on Kalshi at 25¢ nets 2220 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.8¢ and selling on Kalshi at 14¢ nets 1120 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.9¢ and selling on Kalshi at 17¢ nets 1410 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.8¢ and selling on Kalshi at 12¢ nets 920 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.8¢ and selling on Kalshi at 3¢ nets 20 bps before fees.


Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 2.8¢ and selling on Kalshi at 5¢ nets 220 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Polymarket at 1.1¢ and selling on Kalshi at 4¢ nets 290 bps before fees.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 0.2¢, at or below the cheapest ask of 6¢.

Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 0.1¢, at or below the cheapest ask of 6¢.
Possible arbitrage before fees: buy Isack Hadjar on Polymarket at 3.4¢, sell on Kalshi at 81¢ (7760 bps). Check the rules below before trading. See all live spreads
Summarized from each venue’s published rules; the venue’s own rules page is the final word.
The top 3 outcomes on both venues, with the consensus between them. Hover for exact values.
Each venue’s resting orders for the selected outcome’s Yes contract, side by side. Top of book streams live; depth refreshes every 15 seconds.
Polymarket doesn’t list Andrea Kimi Antonelli for this event.
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Enter a stake to see where it buys the most after fees, using each venue’s live order book.
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Buys at the asks resting now (taker orders), cheapest after fees first, from order-book snapshots up to 15 seconds old. Fees: Kalshi 0.07 × price × (1 − price) per share, rounded up to the cent; Polymarket 0.05 × price × (1 − price) per share (sports rate). Fee calculator. Estimates only, not advice.
Live prediction market odds for "United States Grand Prix Main Race: Top 10 Finishers". Andrea Kimi Antonelli leads at 89%. Next is Max Verstappen at 60.5%. $18K has traded across 24 outcomes on Polymarket and Kalshi. The market is expected to resolve by Nov 2, 2026.
It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.
A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.
Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.
Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.
Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.