Kalshi vs Polymarket on La Liga games: where the prices disagree today
17 La Liga games priced on both Kalshi and Polymarket right now, $460k traded in 24 hours. The widest disagreement is Rayo Vallecano de Madrid at −$0.01. Updated every 45 seconds.
| Event | Outcome | Kalshi | Polymarket | Gap, + = Kalshi higher | Edge after fees | |
|---|---|---|---|---|---|---|
| Rayo Vallecano de Madrid vs. Elche CF Oct 24, 8:00 AM ET | Rayo Vallecano de Madrid | $0.55 | $0.56 | −$0.01 | -6.06% | Kalshi · Polymarket |
| Valencia CF vs. Villarreal CF Oct 24, 12:30 PM ET | Villarreal CF | $0.45 | $0.44 | +$0.01 | -5.22% | Kalshi · Polymarket |
| FC Barcelona vs. Real Madrid CF Oct 25, 4:00 PM ET | FC Barcelona | $0.61 | $0.61 | $0.00 | -3.10% | Kalshi · Polymarket |
| Getafe CF vs. Sevilla FC Nov 1, 8:00 AM ET | Sevilla FC | $0.35 | $0.36 | −$0.01 | -7.27% | Kalshi · Polymarket |
| Athletic Club vs. Real Sociedad de Fútbol Nov 1, 3:00 PM ET | Athletic Club | $0.49 | $0.48 | +$0.01 | -5.21% | Kalshi · Polymarket |
| Club Atlético de Madrid vs. RC Deportivo A Coruña Oct 24, 3:00 PM ET | Club Atlético de Madrid | $0.76 | $0.76 | $0.00 | -2.28% | Kalshi · Polymarket |
| Villarreal CF vs. RCD Espanyol de Barcelona Oct 30, 4:00 PM ET | Villarreal CF | $0.62 | $0.62 | −$0.01 | -8.77% | Kalshi · Polymarket |
| FC Barcelona vs. Deportivo Alavés Oct 31, 4:00 PM ET | FC Barcelona | $0.86 | $0.86 | $0.00 | -4.35% | Kalshi · Polymarket |
| RC Celta de Vigo vs. Real Betis Balompié Oct 25, 11:15 AM ET | Real Betis Balompié | $0.39 | $0.39 | $0.00 | -6.33% | Kalshi · Polymarket |
| Sevilla FC vs. CA Osasuna Oct 26, 4:00 PM ET | Sevilla FC | $0.50 | $0.50 | +$0.01 | -5.28% | Kalshi · Polymarket |
| Levante UD vs. Club Atlético de Madrid Oct 31, 9:00 AM ET | Club Atlético de Madrid | $0.61 | $0.61 | $0.00 | -6.66% | Kalshi · Polymarket |
| Rayo Vallecano de Madrid vs. RC Celta de Vigo Oct 31, 11:15 AM ET | Rayo Vallecano de Madrid | $0.42 | $0.42 | $0.00 | -7.31% | Kalshi · Polymarket |
| Real Betis Balompié vs. Málaga CF Oct 31, 1:30 PM ET | Real Betis Balompié | $0.69 | $0.69 | $0.00 | -4.84% | Kalshi · Polymarket |
| Elche CF vs. Valencia CF Nov 1, 12:30 PM ET | Elche CF | $0.39 | $0.39 | −$0.01 | -7.15% | Kalshi · Polymarket |
| Real Sociedad de Fútbol vs. Levante UD Oct 25, 1:30 PM ET | Real Sociedad de Fútbol | $0.56 | $0.56 | $0.00 | -6.08% | Kalshi · Polymarket |
| Deportivo Alavés vs. Málaga CF Oct 23, 3:00 PM ET | Deportivo Alavés | $0.56 | $0.56 | $0.00 | -4.73% | Kalshi · Polymarket |
| Athletic Club vs. Getafe CF Oct 25, 9:00 AM ET | Athletic Club | $0.61 | $0.61 | $0.00 | -5.10% | Kalshi · Polymarket |
How this is built
Every event listed on both exchanges is matched outcome by outcome: games by team codes and date, multi-outcome markets by name. Prices are mid-market, in dollars on a contract that pays $1 if the outcome happens: Polymarket from its live order book, Kalshi from its public API. Gap is Kalshi minus Polymarket. Thin books (spread over $0.10) and near-certain favorites are excluded from this table.
Edge after fees
Buy one side on one venue and the other side on the other, both at the ask. Edge is $1 minus total cost minus taker fees, Kalshi ⌈0.07·P·(1−P)⌉ per contract and Polymarket 0.05·P·(1−P) on sports, as a percent of the $1 payout. Not advice; nothing here places orders.
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