FC Barcelona vs. Deportivo Alavés: Deportivo Alavés O/U 2.5 Corners

Crossbook compares what two exchanges, Polymarket and Kalshi, charge for the same event, and publishes a permanent scored record of its own forecasts under published rules.

Tracked on one venue, with Crossbook's own call on the record.

TradingEvent date Sat, 31 Oct 2026, 20:00 UTCLast checked 29 Oct 2026, 20:40 UTC

Bid/ask midpoint · retrieved 2026-10-29T20:40:28.683Z. Venue quote-update time is unavailable. Readings can be asynchronous.

48.5%bid 48.0% / ask 49.0%24h volume $28K · liquidity $92Kas of 29 Oct, 20:40 UTCView on Polymarket

Price, last 60 days

Crossbook forecast

51.7%against a market price of 48.5% at the timeOpen
Logged 29 Oct 2026, 17:02 UTC
- Base rate: Alavés cleared 2.5 corners in 60% of 15 sampled away matches last season; this fixture is away for Alavés (Barcelona hosts at Camp Nou), so the away sample applies directly.
- Current-season signal supports the Over: Alavés averaged 4.5 corners per away match over four 2026-27 away matches, though the sample is tiny (n=4).
- Downward pressure: facing Barcelona (9-0-1, dominant possession side) at Camp Nou typically pins underdogs deep and suppresses their corner counts relative to an average away fixture.
- Partial offset: Barcelona's defensive absences and doubts (Eric Garcia out; Koundé and Christensen doubtful) could concede more attacking territory and set-piece opportunities to Alavés than usual.
- Both corner samples are small (n=15 and n=4), so I anchor on the 60% base rate and shave a few points for opponent strength rather than trusting the 4.5 average literally.
What would change it: Confirmed Barcelona defensive starters (Koundé, Christensen) all fit plus lineups showing Alavés parking a deep low block would push me toward 0.45 or lower.
t-0282

Polymarket prices this at 48.5%. No verified equivalent is currently listed on the other venue, so there is no cross venue comparison on this page.

Volume over the last 24 hours is active, at about $27,873 on the busier venue. It closes in 2 days. Prices this close to resolution move on news rather than on reassessment.

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