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Will Russia target Kyiv on August 26, 2026?

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.

SettledContract settles 26 Aug 2026Last checked 26 Aug 2026, 20:55 UTC
PM

Bid/ask midpoint · retrieved 2026-08-26T20:55:07.655Z. Venue quote-update time is unavailable. Readings can be asynchronous.

2.5%bid 1.0% / ask 4.0%24h volume $3K · liquidity $16Kas of 26 Aug, 20:55 UTC · not refreshed recentlyView on Polymarket

Crossbook forecast

31.0%against a market price of 38.0% at the timeNO

Logged 23 Aug 2026, 13:30 UTC · Brier 0.0961

  • Dominant uncertainty is the war's state on 2026-08-26, which I cannot verify: if a ceasefire/frozen lines hold, probability is near zero; if the campaign is active at anything like 2024–25 tempo, near-daily Shahed-type launches make at least one Kyiv-directed drone/missile on a given day plausibly ~50%, so I weight these regimes to land near ~0.30.
  • Signal over narrative: the resolution criteria is broad (one qualifying drone or missile suffices, interceptions still count as targeted), which materially raises single-day YES odds versus intuition about a 'major strike'; the 3-day window limits time for regime change but not for a pre-planned barrage.
  • Divergence from the 38% market is small and plausibly noise given only $6 of 24h volume (thin, possibly stale price); my slight downward tilt reflects some probability mass on de-escalation/ceasefire by 2026 that an active-war-anchored price may underweight.

What would change it: Verified evidence before Aug 26 of an enduring ceasefire or a multi-week complete halt in Russian long-range strikes toward Kyiv would cut this toward low single digits; conversely signs of a renewed massed missile/drone campaign would push it above 0.5.

Settlement source

-7.0 probability points from the market at generation · low confidence · Polymarket

Base rate: In an active phase of the Russia–Ukraine war, the per-day probability that at least one Russian missile or one-way attack drone is directed at Kyiv has historically run roughly 15–45% depending on strike tempo, with the inclusive resolution definition (any single drone/missile toward Kyiv) pushing toward the higher end.

Chosen by hand.

Settlement

Every answer this call has been given, oldest first. Nothing is edited: a correction is a new entry beside the one it replaces.

  1. NOsettled 29 Aug 2026, 02:05 UTC · recorded 29 Aug 2026, 02:05 UTC · entered by handsettlement

  2. NOsettled 31 Aug 2026, 04:34 UTC · recorded 5 Oct 2026, 01:23 UTC · read from the venuesettlement

    Corrected against Polymarket's settlement. It was recorded as settled on 29 Aug 2026, before Polymarket settled it on 31 Aug 2026.

Polymarket prices this at 2.5%. 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 modest, at about $3,125 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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