Saints vs. Giants
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.
Bid/ask midpoint · retrieved 2026-10-18T16:55:29.298Z. Venue quote-update time is unavailable. Readings can be asynchronous.
50.5%bid 50.0% / ask 51.0%24h volume $166K · liquidity $2.5Mas of 18 Oct, 16:55 UTC · not refreshed recentlyView on PolymarketCrossbook forecast
Logged 16 Oct 2026, 13:02 UTC · Brier 0.2889
- The Saints (1-4) travel with a rookie quarterback (Tyler Shough, practicing fully) against a better-record Giants team (3-1-1), which fits the road-underdog profile and anchors near a one-third win rate.
- Signal for the Saints: the Giants have four meaningful players who did not practice Wednesday or Thursday — both offensive tackles (Andrew Thomas, Jermaine Eluemunor), edge rusher Abdul Carter, and safety Tyler Nubin — a concentrated injury cluster on the offensive line and pass rush that meaningfully degrades the favorite.
- Signal against the Saints: top receiver Chris Olave missed both practices (illness) and Alvin Kamara was limited with a back injury, weakening their two best offensive weapons, though illness is often short-lived.
- No game-status designations have been issued yet, so all injury adjustments are provisional and could move in either direction by Sunday; this keeps confidence moderate two days out.
- The 17-17 all-time head-to-head and each team's most recent single-game result (Saints 10-point loss, Giants tie) are narrative rather than signal — one comparison is an anchor, not a distribution.
- The venue could not be confirmed from the retrieved facts; the estimate assumes the Saints are the road team as the framing implies, which is the main residual uncertainty.
What would change it: If the final injury report rules out Kamara or Olave while the Giants' tackles return, or the closing line moves the Saints to 6+ point underdogs, the estimate should drop toward 0.30.
Settlement source-5.2 probability points from the market at generation · med confidence · Polymarket
Base rate: From general knowledge of the class, NFL road underdogs in modest-spread games win about one-third of the time (home favorites of ~3-4 points win roughly 60-65%); no retrieved page gives a computed rate for this line, so the rate rests on the class itself.
Chosen by Crossbook's published selection rule (auto-v1), not by hand.
Formed blind at 41.0%, without sight of the price; published at 46.3%, the market’s 51.5% moved 50% of the way toward it by fixed rule. A cited fact (f9, f10, f11) is one the market had not moved toward since it was published. That check is recorded, not enforced.
Settlement
Every answer this call has been given, oldest first. Nothing is edited: a correction is a new entry beside the one it replaces.
YESsettled 18 Oct 2026, 20:52 UTC · recorded 19 Oct 2026, 06:30 UTC · read from the venuesettlement
What this call was reading
- The Saints' season record is 1-4.[web:20] as of 2026-10-16 · nfl.com · within 14 days of this call
- The Giants' season record is 3-1-1.[web:58] as of 2026-10-16 · nfl.com · within 14 days of this call
- Saints quarterback Tyler Shough practiced fully on Wednesday and Thursday while listed with a left-hand injury.[web:22] as of 2026-10-15 · giants.com · within 14 days of this call
- Giants linebacker Abdul Carter did not practice Wednesday or Thursday because of a calf injury.[web:63] as of 2026-10-15 · giants.com · within 14 days of this call
- Giants offensive tackle Jermaine Eluemunor did not practice Wednesday or Thursday because of a calf injury.[web:63] as of 2026-10-15 · giants.com · within 14 days of this call
- Giants safety Tyler Nubin did not practice Wednesday or Thursday because of a neck injury.[web:63] as of 2026-10-15 · giants.com · within 14 days of this call
- Giants offensive tackle Andrew Thomas did not practice Wednesday or Thursday because of a groin injury.[web:63] as of 2026-10-15 · giants.com · within 14 days of this call
- Saints wide receiver Chris Olave did not practice Wednesday or Thursday because of an illness.[web:22] as of 2026-10-15 · giants.com · within 14 days of this call
- Saints running back Alvin Kamara was limited in Wednesday and Thursday practices with a back injury.[web:22] as of 2026-10-15 · giants.com · within 14 days of this call
- The official Week 6 injury report displayed no game-status designation for listed Saints or Giants players as of October 16.[web:63] as of 2026-10-16 · giants.com · within 14 days of this call
- The Saints and Giants had each won 17 of their 34 meetings through their October 5, 2025 meeting.[web:59] as of 2025-10-05 · cbssports.com
- The Saints' most recent game was a 23-13 loss to the Vikings, a 10-point margin.[web:31] as of 2026-10-11 · espn.com · within 14 days of this call
- The Giants' most recent game was a 27-27 tie with the Commanders, a zero-point margin.[web:46] as of 2026-10-11 · espn.com · within 14 days of this call
Polymarket prices this at 50.5%. 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 $166,159 on the busier venue.
This market has settled. The page is kept as a record of what the market said while the question was open, and of what Crossbook called.
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This call is line t-0251 of the public append-only ledger, committed when it was published. It appears on the record alongside every other call, resolved and open.