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Will Arsenal FC win on 2026-09-12?

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, 12 Sept 2026, 19:00 UTCLast checked 9 Sept 2026, 03:00 UTC
PM

Bid/ask midpoint · retrieved 2026-09-09T03:00:27.199Z. Venue quote-update time is unavailable. Readings can be asynchronous.

66.5%bid 66.0% / ask 67.0%24h volume $2K · liquidity $60Kas of 9 Sept, 03:00 UTCView on Polymarket

Crossbook forecast

  • 58.0%against a market price of 66.5% at the timeOpen

    Logged 7 Sept 2026, 01:37 UTC

    • Reference class is a title-contending PL side playing an away league match; Arsenal fit that profile but the away venue and draw-not-counted rule cap the YES probability (f1).
    • Arsenal’s early-2026-27 form is strong: 3-0-0, a 2-1 home win over Chelsea, and a prior 1-0 away win at Aston Villa support favorite status (f2, f3, f6).
    • The schedule is a meaningful negative: an away Champions League match at Napoli three days earlier raises fatigue/rotation risk for the Sunderland trip (f5).
    • Defensive availability is a warning rather than decisive evidence: Mosquera, Timber and Saliba missed the Chelsea match, but their status for Sep 12 is unconfirmed (f4).
    • Lack of verified Sunderland form/position and lack of updated Arsenal team news keep this close to the adjusted base rate rather than a confident elite-favorite number.

    What would change it: Confirmed Sep 12 team news showing continued absence of Saliba/Timber/Mosquera plus heavy post-Napoli rotation, or evidence Sunderland are in strong early form, would move this estimate down several points; full-strength Arsenal and weak Sunderland form would move it up.

Context

Polymarket prices this at 66.5%. 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 thin, at about $1,558 on the busier venue. It closes in 4 days. Prices this close to resolution move on news rather than on reassessment.

Related markets

Crossbook publishes every forecast it makes, timestamped before the answer is known and scored against the market afterwards. See the public record and the rules it is held to.