The Prediction Markets

Ukraine strikes another tanker in Black Sea by...?

Closed
Jan 31, 2026
Traded
$3.1M
Venues
Polymarket
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This market has closed

Trading ended on Jan 31, 2026. The prices below are the last ones before it closed and no longer update. Browse open markets

Odds by venue

Consensus blends each venue’s last price, weighted by how much has traded there. Best Yes price is the cheapest ask across venues, and the payout is what a winning $100 stake returns before fees. Open a row for each venue’s contract name, bid and ask, and how closely their rules match.

Prices come from our regular polls of each venue, the oldest 201 days ago. Ages are as of when this page was built.

  • Polymarket
March 31
100%
Polymarket 100%polled, 4845 h ago
Polymarket
Contract
March 31
Last price
100%
As of
Polled 201 d ago
Buy Yes
—
Sell Yes
99.9¢
Volume
$3.0M
Trade this on Polymarket

Who resolves this market

Polymarket
Polymarket resolves via:
UMA optimistic oracle

How the odds have moved

The leading outcome on both venues, with the consensus between them. Hover for exact values.

  • March 31

About this market

Final prediction market prices for "Ukraine strikes another tanker in Black Sea by...?". March 31 last traded at 100%. $3.1M has traded across 1 outcome on Polymarket. The market closed on Jan 31, 2026.

On December 10, 2025, Ukraine hit and disabled "Dashan," a tanker involved in trading Russian oil, as it sailed through Ukraine's exclusive economic zone in the Black Sea to the Russian port of Novorossiysk. You can read more about that here: https://www.reuters.com/world/europe/ukraine-disables-shadow-fleet-vessel-with-sea-drones-black-sea-2025-12-10/. This market will resolve to "Yes" if there is a strike against any tanker in the Black Sea attributed to Ukraine between market creation and the specified date, 11:59 PM Eastern European Time (EET). Otherwise, this market will resolve to "No". A "strike" is defined as the use of aerial bombs, drones, naval drones, naval guns, artillery, or missiles (including cruise or ballistic missiles) which impact a tanker anywhere in the Black Sea, regardless of flag, ownership, or damage level. Strikes attributed to Ukraine by media or third parties, such as Turkey, including the December 2 incident involving the tanker "Midvolga-2,” will qualify, regardless of whether Ukraine publicly denies involvement or if definitive attribution is not confirmed. (see: https://www.aljazeera.com/news/2025/12/2/russian-tanker-struck-off-turkiye-as-ukraine-targets-shadow-fleet). Ship seizures, boarding, or the use of small arms fire will not qualify. An intercepted missile or drone that does not impact the tanker will not qualify, even if debris lands on or near the vessel. The primary resolution source will be a consensus of credible reporting.

Questions

What does the consensus price mean?

It is the price of a Yes contract that pays $1 if the outcome happens. A 14¢ price means traders put the chance near 14%. Where two venues list the same outcome, we blend their last prices, weighting the venue with more trading volume more heavily (neither counts for less than a quarter). When only one outcome can win, each venue’s prices add up to a little over 100% (its margin); the fair chance removes that margin so the outcomes add up to exactly 100%.

How is the payout worked out?

A Yes contract pays $1 if it wins, so at the best ask a $100 stake buys 100 ÷ ask contracts. At 18¢ that is about 555 contracts, paying $556 (5.56x) if Yes happens. Venue fees and price slippage on larger orders are not included.

Why do the venues show different prices?

Each venue has its own traders, fees and order book. Contracts can also settle on slightly different terms, which is why each row lists how closely the rules match.

Is a price gap an arbitrage?

Only when you can buy Yes on one venue below what someone pays for Yes on the other, after fees, and both contracts settle the same way. We show the executable bid and ask so you can check.

How fresh are these prices?

Venue prices refresh every few minutes, and the order book and live quotes stream continuously. Each venue’s card shows when we last observed it.

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