Barcelona vs Rayo Vallecano correct score: Barcelona beat Rayo Vallecano 5-2 at Camp Nou on Monday, Aug. 31, and exactly one scoreline on Kalshi's correct-score board paid. It was 5-2, a 3-cent line that morning. The favorite was 3-0 and the crowd's money was on 4-0, and both died the moment Rayo scored first. The full board is below, with what every line traded and whether it paid, then the short version of how the crowd called the rout and still lost.
The Board
Kalshi listed 31 scorelines, each its own contract that pays $1.00 only on the exact final score after stoppage time. Prices are as they stood at 9:39 a.m. ET on match day, sorted by that morning's price, with closing volume and the result added after the final whistle.
| Scoreline | Bid (Aug. 31 a.m.) | Ask | Last | Volume (pre-kickoff) | Volume (at close) | Result |
|---|---|---|---|---|---|---|
| Barcelona 3-0 | 11¢ | 12¢ | 12¢ | 8,878 | 39,951 | $0.00 |
| Barcelona 4-0 | 8¢ | 10¢ | 10¢ | 45,984 | 68,221 | $0.00 |
| Barcelona 2-0 | 9¢ | 10¢ | 10¢ | 7,453 | 33,151 | $0.00 |
| Barcelona 3-1 | 7¢ | 8¢ | 8¢ | 9,936 | 82,433 | $0.00 |
| Barcelona 5-0 | 5¢ | 7¢ | 7¢ | 37,332 | 47,213 | $0.00 |
| Barcelona 4-1 | 6¢ | 7¢ | 7¢ | 27,077 | 92,984 | $0.00 |
| Barcelona 2-1 | 6¢ | 7¢ | 7¢ | 2,841 | 22,768 | $0.00 |
| Barcelona 1-0 | 4¢ | 6¢ | 7¢ | 288 | 6,166 | $0.00 |
| Barcelona 5-1 | 0¢ | 5¢ | 5¢ | 21,325 | 65,298 | $0.00 |
| Barcelona 6-0 | 0¢ | 4¢ | 4¢ | 29,504 | 49,957 | $0.00 |
| Barcelona 6-1 | 0¢ | 3¢ | 3¢ | 12,643 | 21,534 | $0.00 |
| Barcelona 5-2 | 0¢ | 3¢ | 3¢ | 1,974 | 52,279 | $1.00 (paid) |
| Barcelona 4-2 | 0¢ | 3¢ | 3¢ | 1,356 | 60,224 | $0.00 |
| Draw 2-2 | 2¢ | 3¢ | 3¢ | 1,168 | 1,406 | $0.00 |
| Draw 1-1 | 2¢ | 4¢ | 3¢ | 348 | 3,899 | $0.00 |
| Barcelona 3-2 | 2¢ | 3¢ | 2¢ | 1,809 | 14,234 | $0.00 |
| Draw 0-0 | 0¢ | 2¢ | 2¢ | 546 | 3,381 | $0.00 |
| Rayo Vallecano 2-1 | 0¢ | 2¢ | 2¢ | 1,420 | 6,396 | $0.00 |
| Rayo Vallecano 1-0 | 0¢ | 2¢ | 2¢ | 209 | 3,886 | $0.00 |
| Barcelona 7-0 | 0¢ | 2¢ | 1¢ | 22,233 | 27,145 | $0.00 |
| Barcelona 6-2 | 0¢ | 1¢ | 1¢ | 4,224 | 20,879 | $0.00 |
| Barcelona 5-3 | 0¢ | 1¢ | 1¢ | 2,354 | 16,329 | $0.00 |
| Barcelona 7-1 | 0¢ | 2¢ | 1¢ | 654 | 4,214 | $0.00 |
| Barcelona 8-0 | 0¢ | 1¢ | 1¢ | 110 | 297 | $0.00 |
| Rayo Vallecano 2-0 | 0¢ | 1¢ | 3¢ | 4 | 238 | $0.00 |
| Rayo Vallecano 3-1 | 0¢ | 1¢ | 3¢ | 4 | 2,903 | $0.00 |
| Rayo Vallecano 3-2 | 0¢ | 1¢ | 3¢ | 16 | 638 | $0.00 |
| Draw 3-3 | 0¢ | 1¢ | 3¢ | 16 | 6,309 | $0.00 |
| Barcelona 4-3 | 0¢ | 1¢ | 3¢ | 16 | 13,546 | $0.00 |
| Barcelona 7-2 | 0¢ | 1¢ | 3¢ | 16 | 4,414 | $0.00 |
| Barcelona 8-1 | 0¢ | 1¢ | 3¢ | 16 | 110 | $0.00 |
The row to sit with is 4-0. It was not the favorite, but it had traded more that morning than the four modest Barcelona wins combined, twice over. About 70% of the board's volume was on Barcelona winning by four goals or more. The scorelines that decide most soccer matches, 1-0 through 3-2, had drawn a fraction of that.
How Did The Crowd Lose A Rout It Called?
Sergio Camello put Rayo ahead in the 12th minute, per ESPN's match report, and that one goal killed every clean-sheet line on the board, 1-0 through 8-0. Raphinha and Lamine Yamal answered inside ten minutes, an own goal made it 3-1, Camello scored again, and Raphinha and Yamal closed it at 5-2.
The 5-2 contract had 1,974 contracts of volume that morning and 52,279 at the close, nearly all of it in-play money chasing the scoreline once it went live. Almost nobody held it before kickoff.
Why Was The Money On A Blowout?
The blowout money followed what the first two weeks put on film. Barcelona opened the season by beating Elche 5-0 and Athletic Club 2-0, per ESPN, and SI's preview noted those were the two highest expected-goals games in La Liga this season. Sports Mole's preview had Hansi Flick's side on a 20-game home league winning streak.
Rayo's week gave traders every excuse. They arrived with one point from two matches, a stadium the regional government had shut over safety concerns, a starting goalkeeper with a broken leg, and a midfielder refusing to train to force a transfer. That was the profile of a team the market expected to get buried.
The twist was in the fixture's own history. Barcelona had not conceded in their previous four home meetings with Rayo, and the most recent one, in March, finished 1-0 on a corner. SI added that Rayo out-xG'd Barcelona twice last season, the only La Liga team to do it. On the morning board the 1-0 line was a rounding error next to the 4-0, and Barcelona was playing without Frenkie de Jong in midfield. The crowd remembered the streak and forgot how many of those wins were narrow. What actually happened, a five-goal Barcelona that conceded twice, was the cell both memories ignored.
If picking one scoreline out of 31 sounds less like an edge and more like a lottery line, the better use of the same read is a full-game side or total where the price is wrong. OddsShopper's free expert picks is where our handicappers publish those, with the price attached. Kalshi's legal status differs by state and is being contested in court; we track where prediction markets stand legally, so check your state before you trade.
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