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3,099.5+ passing yards 90.1%
Next is Jared Goff at 86.7%. The venues differ most on Fernando Mendoza (Polymarket 2.8%, Kalshi 42%), a 39-point gap.
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 4 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 Kalshi at 84¢ and selling on Polymarket at 90¢ nets 600 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 81¢, at or below the cheapest ask of 84¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 77¢ and selling on Polymarket at 78¢ nets 100 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 82¢, at or below the cheapest ask of 85¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 81¢, at or below the cheapest ask of 83¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 70¢ and selling on Polymarket at 83¢ nets 1300 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 78¢, at or below the cheapest ask of 84¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 78¢, at or below the cheapest ask of 85¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 77¢, at or below the cheapest ask of 82¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 55¢ and selling on Polymarket at 74¢ nets 1900 bps before fees.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 75¢ and selling on Polymarket at 81¢ nets 600 bps before fees.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 61¢ and selling on Polymarket at 71¢ nets 1000 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 1¢, at or below the cheapest ask of 20¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 21¢ and selling on Polymarket at 39¢ nets 1800 bps before fees.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 20¢ and selling on Polymarket at 38¢ nets 1800 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 1.2¢, at or below the cheapest ask of 84¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 15¢ and selling on Polymarket at 31¢ nets 1600 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 37¢, at or below the cheapest ask of 39¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 20¢ and selling on Polymarket at 35¢ nets 1500 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 13¢, at or below the cheapest ask of 20¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
No arbitrage: the best bid elsewhere is 1¢, at or below the cheapest ask of 20¢.
Labels suggest the same named outcome; no persisted outcome identity or settlement parity is verified.
Buying on Kalshi at 2¢ and selling on Polymarket at 4.7¢ nets 270 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 1¢, at or below the cheapest ask of 2.5¢.
Possible arbitrage before fees: buy Patrick Mahomes on Kalshi at 55¢, sell on Polymarket at 74¢ (1900 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.
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Kalshi doesn’t list 3,099.5+ passing yards for this event.
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 "Pro Football: 4000+ Passing Yards Season". 3,099.5+ passing yards leads at 90.1%. Next is Jared Goff at 86.7%. $178K has traded across 42 outcomes on Kalshi and Polymarket. The market is expected to resolve by Feb 2, 2027.
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.