Live prediction market odds for Arizona Diamondbacks vs. Seattle Mariners (10:10 PM ET). Compare prices across Kalshi and Polymarket and ProphetX.
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MARKET RESOLVEDKalshi / Polymarket / ProphetX
Resolved 2026-05-30
This market resolved on 2026-05-30. Seattle Mariners was the officially declared outcome. Prior to resolution, the market peaked at 98%.
Arizona Diamondbacks vs. Seattle Mariners (10:10 PM ET) — MLB game held on 2026-05-30. Review the historical prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.
| Candidate |  |  |  |
|---|---|---|---|
Seattle MarinersWINNER | 99% | 57% | 98% |
Seattle Mariners spread plus 3.5 | — | 88% | — |
Arizona Diamondbacks spread plus 4.5 | — |
Arizona Diamondbacks vs. Seattle Mariners (10:10 PM ET) was a prediction market event tracked across 3 platforms (Kalshi, Polymarket, ProphetX). Seattle Mariners led the market at 85% implied probability before resolution. Other contenders include Seattle Mariners spread plus 3.5 at 88%, Arizona Diamondbacks spread plus 4.5 at 86%, Arizona Diamondbacks spread plus 3.5 at 81%.
Seattle Mariners held the lead at 85% implied probability heading into resolution. Behind Seattle Mariners, Seattle Mariners spread plus 3.5 at 88% and Arizona Diamondbacks spread plus 4.5 at 86% and Arizona Diamondbacks spread plus 3.5 at 81% were the next closest contenders. The 42.0% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.
Here were the closing odds across Kalshi, Polymarket, ProphetX: Seattle Mariners: 99¢ on Kalshi, 57¢ on Polymarket, 98¢ on ProphetX. Seattle Mariners spread plus 3.5: 88¢ on Polymarket. Arizona Diamondbacks spread plus 4.5: 86¢ on Polymarket. Arizona Diamondbacks spread plus 3.5: 81¢ on Polymarket. The 42.0% spread across platforms highlights where markets disagreed — a gap traders can exploit by buying low on one platform and selling high on another.
A price of 85¢ meant the market estimated a 85% chance that Seattle Mariners would be the outcome. Traders who bought at 85¢ and held through resolution received $1.00 per share — a 18% return on their position. Those on the wrong side received $0.
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Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket and ProphetX.
KalshiIf Arizona wins the Arizona vs Seattle professional baseball game originally scheduled for May 30, 2026 at 10:10 PM EDT, then the market resolves to Yes.
The following market refers to the Arizona vs Seattle professional baseball game originally scheduled for May 30, 2026 at 10:10 PM EDT. If this game is postponed or delayed, the market will remain open and close after the rescheduled game has finished (within two days). If the game is cancelled or rescheduled to over two days away, the market will resolve to a fair price in accordance with the rules.
PolymarketIn the upcoming MLB game between the Arizona Diamondbacks and Seattle Mariners, scheduled for May 30 at 10:10PM ET: This market will resolve to "Arizona Diamondbacks" if the Arizona Diamondbacks win the game. This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, or ends in a tie, this market will resolve 50-50. The primary resolution source for this market is the official final statistics of the event as recognized by the governing body or event organizers. However, if the governing body or event organizers have not published final match statistics within 24 hours after the event's conclusion, a consensus of credible reporting may be used instead.
ProphetXSports moneyline - resolves based on official game outcome per ProphetX Prediction Rules
| — |
Arizona Diamondbacks spread plus 3.5 | — | 81% | — |
Seattle Mariners spread plus 2.5 | — | 81% | — |
Total under 10.5 | — | 80% | — |
Total over 4.5 | — | 77% | — |
Total under 9.5 | — | 77% | — |
Arizona Diamondbacks spread plus 2.5 | — | 73% | — |
Seattle Mariners spread plus 1.5 | — | 70% | — |
Total under 8.5 | — | 67% | — |
Total over 5.5 | — | 64% | — |
Arizona Diamondbacks spread plus 1.5 | — | 60% | — |
Total under 7.5 | — | 59% | — |
Total over 6.5 | — | 53% | — |
Total under 6.5 | — | 47% | — |
Total over 7.5 | — | 41% | — |
Seattle Mariners spread minus 1.5 | — | 40% | — |
Total under 5.5 | — | 36% | — |
Total over 8.5 | — | 34% | — |
Arizona Diamondbacks spread minus 1.5 | — | 30% | — |
Seattle Mariners spread minus 2.5 | — | 28% | — |
Total over 9.5 | — | 23% | — |
Total under 4.5 | — | 23% | — |
Total over 10.5 | — | 20% | — |
Arizona Diamondbacks spread minus 2.5 | — | 20% | — |
Seattle Mariners spread minus 3.5 | — | 19% | — |
Seattle Mariners spread minus 4.5 | — | 14% | — |
Arizona Diamondbacks spread minus 3.5 | — | 13% | — |
Arizona Diamondbacks | 1% | 43% | 10% |
Seattle Mariners
84.8% avg
