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Live prediction market odds for Seattle Mariners vs. Houston Astros (7:10 PM ET). Compare prices across Kalshi and Polymarket US and Polymarket and ProphetX.

Browse historical results
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Claim offerLegal in USAVerified Sep 14, 2026

MARKET RESOLVEDKalshi / Polymarket US / Polymarket / ProphetX

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Seattle Mariners Wins: Seattle Mariners vs. Houston Astros (7:10 PM ET)

MLB·Resolved 2026-08-15

This market resolved on 2026-08-15. Seattle Mariners was the officially declared outcome. Prior to resolution, the market peaked at 92%.

About This Market

Seattle Mariners vs.

Seattle Mariners vs. Houston Astros (7:10 PM ET) — MLB game held on 2026-08-15. Review the historical prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.

Price History

Multi-Platform Probabilities
Loading 30D data…

Final Closing Odds

4 platforms
Candidate
Kalshi
Polymarket US
Polymarket
ProphetX
Hayden Wesneski Over 4.5 Strikeouts
99%——99%
Brendan Donovan Under 0.5 Home Runs
——50%99%
Christian Walker Over 0.5 Hits + Runs + RBIs
99%———
Cole Young Under 0.5 Home Runs
——49%99%
Emerson Hancock Over 1.5 Strikeouts
99%———
Emerson Hancock Over 5.5 Strikeouts
99%———
Emerson Hancock Over 6.5 Strikeouts
99%———
Emerson Hancock Over 7.5 Strikeouts
99%———
Hayden Wesneski Over 1.5 Strikeouts
99%———
Hayden Wesneski Over 5.5 Strikeouts
99%———
Jeremy Pena Under 0.5 Home Runs
——50%99%
Julio Rodriguez Over 0.5 Hits + Runs + RBIs
99%———
Julio Rodriguez Over 2.5 Hits + Runs + RBIs
99%———
Julio Rodriguez Over 3.5 Hits + Runs + RBIs
99%———
Over 2.5 runs scored
99%———
Over 3.5 runs scored
99%———
Over 4.5 runs scored
99%———
Victor Robles Under 0.5 Home Runs
———99%
Yordan Alvarez Over 0.5 Hits + Runs + RBIs
99%———
Brock Rodden Under 0.5 Home Runs
———99%
Cam Smith Under 0.5 Home Runs
———99%
Christian Vazquez Under 0.5 Home Runs
———99%
Jose Altuve Under 0.5 Home Runs
——0%99%
Josh Naylor Under 0.5 Home Runs
——0%99%
Julio Rodriguez Under 0.5 Home Runs
——0%99%
Randy Arozarena Under 0.5 Home Runs
——49%99%
Seattle Mariners spread minus 4.5
———99%
Taylor Trammell Under 0.5 Home Runs
———99%
Yainer Diaz Under 0.5 Home Runs
——95%96%
Daulton Varsho Under 0.5 Home Runs
——88%99%
Dominic Canzone Under 0.5 Home Runs
——83%98%
Cal Raleigh Under 0.5 Home Runs
——80%99%
Seattle Mariners spread plus 1.5
——84%92%
Yordan Alvarez Under 0.5 Home Runs
——77%99%
Seattle Mariners spread plus 3.5
———86%
Seattle MarinersWINNER
99%86%14%99%
Brock Rodden Under 0.5 Hits + Runs + RBIs
———84%
Total over 5.5
99%——83%
Emerson Hancock Over 2.5 Strikeouts
99%—82%—
Total under 12.5
———81%
Houston Astros spread plus 3.5
———80%
Hayden Wesneski Over 2.5 Strikeouts
99%—79%—
Total over 7.5
99%—93%64%
Total over 6.5
99%——75%
Emerson Hancock Over 4.5 Strikeouts
99%—49%99%
Seattle Mariners spread plus 4.5
———74%
Christian Walker Under 0.5 Home Runs
——47%98%
Taylor Trammell Under 0.5 Hits + Runs + RBIs
———72%
Seattle Mariners spread minus 1.5
99%—56%88%
Isaac Paredes Under 0.5 Home Runs
——46%98%
Total under 10.5
———71%
Yordan Alvarez Under 1.5 Hits + Runs + RBIs
———71%
Total over 8.5
99%—66%72%
Dominic Canzone Under 1.5 Hits + Runs + RBIs
———68%
Seattle Mariners spread plus 2.5
——81%54%
Emerson Hancock Over 3.5 Strikeouts
99%—67%—
Christian Vazquez Over 0.5 Hits + Runs + RBIs
———66%
Cam Smith Under 1.5 Hits + Runs + RBIs
———65%
Christian Walker Under 1.5 Hits + Runs + RBIs
———65%
Taylor Trammell Under 1.5 Hits + Runs + RBIs
———65%
Victor Robles Over 0.5 Hits + Runs + RBIs
———65%
Yordan Alvarez Under 2.5 Hits + Runs + RBIs
———65%
Emerson Hancock Under 4.5 Strikeouts
——51%78%
Cal Raleigh Under 1.5 Hits + Runs + RBIs
———63%
Hayden Wesneski Under 4.5 Strikeouts
——0%62%
Julio Rodriguez Over 1.5 Hits + Runs + RBIs
99%——62%
Houston Astros spread plus 1.0
———62%
Total over 9.5
99%—67%56%
Seattle Mariners spread minus 2.5
99%—42%81%
Hayden Wesneski Over 3.5 Strikeouts
99%—61%—
Randy Arozarena Under 1.5 Hits + Runs + RBIs
———60%
Daulton Varsho Under 1.5 Hits + Runs + RBIs
———60%
Cole Young Under 1.5 Hits + Runs + RBIs
———59%
Yainer Diaz Under 1.5 Hits + Runs + RBIs
———59%
Isaac Paredes Under 1.5 Hits + Runs + RBIs
———58%
Isaac Paredes Over 1.5 Hits + Runs + RBIs
———57%
Jeremy Pena Under 1.5 Hits + Runs + RBIs
———57%
Josh Naylor Over 1.5 Hits + Runs + RBIs
———57%
Josh Naylor Under 1.5 Hits + Runs + RBIs
———57%
Seattle Mariners spread plus 1.0
———57%
Total under 11.5
———57%
Total under 9.0
———57%
Brendan Donovan Under 1.5 Hits + Runs + RBIs
———56%
Jose Altuve Under 1.5 Hits + Runs + RBIs
———56%
Julio Rodriguez Under 1.5 Hits + Runs + RBIs
———56%
Brendan Donovan Over 1.5 Hits + Runs + RBIs
———55%
Total over 8.0
———55%
Jose Altuve Over 1.5 Hits + Runs + RBIs
———54%
Jeremy Pena Over 1.5 Hits + Runs + RBIs
———53%
Yainer Diaz Over 1.5 Hits + Runs + RBIs
———51%
Cole Young Over 1.5 Hits + Runs + RBIs
———50%
Yordan Alvarez Over 1.5 Hits + Runs + RBIs
58%——40%
Daulton Varsho Over 1.5 Hits + Runs + RBIs
———49%
Cal Raleigh Over 1.5 Hits + Runs + RBIs
42%——54%
Total over 11.5
99%——47%
Taylor Trammell Over 0.5 Hits + Runs + RBIs
———47%
Total under 8.0
———47%
Total over 9.0
———45%
Christian Walker Over 1.5 Hits + Runs + RBIs
46%——45%
Yordan Alvarez Over 4.5 Hits + Runs + RBIs
45%———
Houston Astros spread minus 1.0
———45%
Cam Smith Over 1.5 Hits + Runs + RBIs
———45%
Victor Robles Under 0.5 Hits + Runs + RBIs
———45%
Christian Vazquez Under 0.5 Hits + Runs + RBIs
———43%
Dominic Canzone Over 1.5 Hits + Runs + RBIs
———43%
Taylor Trammell Over 1.5 Hits + Runs + RBIs
———43%
Houston Astros spread plus 2.5
——58%24%
Total under 9.5
——33%48%
Houston wins by over 3.5 runs
1%——40%
Seattle Mariners spread minus 1.0
———40%
Total under 6.5
———40%
Hayden Wesneski Under 3.5 Strikeouts
——39%—
Randy Arozarena Over 1.5 Hits + Runs + RBIs
24%——49%
Christian Walker Over 2.5 Hits + Runs + RBIs
35%———
Houston Astros spread minus 2.5
1%—19%51%
Total over 10.5
99%——34%
Total under 8.5
——34%33%
Emerson Hancock Under 3.5 Strikeouts
——33%—
Yordan Alvarez Over 2.5 Hits + Runs + RBIs
19%——46%
Isaac Paredes Over 0.5 Home Runs
——55%10%
Randy Arozarena Over 2.5 Hits + Runs + RBIs
31%———
Houston Astros spread plus 1.5
——44%16%
Yordan Alvarez Over 3.5 Hits + Runs + RBIs
28%———
Brock Rodden Over 0.5 Hits + Runs + RBIs
———25%
Total under 5.5
———25%
Total over 12.5
99%——25%
Seattle Mariners spread minus 3.5
99%——24%
Total under 7.5
——7%40%
Cal Raleigh Over 2.5 Hits + Runs + RBIs
23%———
Hayden Wesneski Under 2.5 Strikeouts
——21%—
Houston Astros spread minus 4.5
———19%
Emerson Hancock Under 2.5 Strikeouts
——18%—
Randy Arozarena Over 3.5 Hits + Runs + RBIs
18%———
Houston Astros spread minus 1.5
1%—16%19%
Houston Astros
1%15%14%6%
Dominic Canzone Over 0.5 Home Runs
——17%10%
Daulton Varsho Over 0.5 Home Runs
——12%11%
Brock Rodden Over 0.5 Home Runs
———11%
Julio Rodriguez Over 4.5 Hits + Runs + RBIs
11%———
Yordan Alvarez Over 0.5 Home Runs
2%—23%10%
Cam Smith Over 0.5 Home Runs
———10%
Christian Vazquez Over 0.5 Home Runs
———10%
Christian Walker Over 0.5 Home Runs
2%—53%10%
Houston Astros spread plus 4.5
———10%
Cal Raleigh Over 4.5 Hits + Runs + RBIs
10%———
Randy Arozarena Over 4.5 Hits + Runs + RBIs
10%———
Cole Young Over 0.5 Home Runs
——51%10%
Cal Raleigh Over 0.5 Home Runs
2%—20%8%
Jose Altuve Over 0.5 Home Runs
———8%
Taylor Trammell Over 0.5 Home Runs
———8%
Yainer Diaz Over 0.5 Home Runs
——5%10%
Julio Rodriguez Over 0.5 Home Runs
3%——12%
Brendan Donovan Over 0.5 Home Runs
——51%7%
Randy Arozarena Over 0.5 Home Runs
4%—51%9%
Jeremy Pena Over 0.5 Home Runs
——51%6%
Victor Robles Over 0.5 Home Runs
———6%
Josh Naylor Over 0.5 Home Runs
———5%
Cal Raleigh Over 1.5 Home Runs
3%———
Yordan Alvarez Over 1.5 Home Runs
3%———
Cal Raleigh Over 0.5 Hits + Runs + RBIs
1%———
Emerson Hancock Over 8.5 Strikeouts
1%———
Hayden Wesneski Over 6.5 Strikeouts
1%———
Hayden Wesneski Over 7.5 Strikeouts
1%———
Julio Rodriguez Over 1.5 Home Runs
1%———
Randy Arozarena Over 0.5 Hits + Runs + RBIs
1%———
Randy Arozarena Over 1.5 Home Runs
1%———
Yordan Alvarez Over 2.5 Home Runs
1%———
Brendan Donovan Under 1.5 Home Runs
——0%—
Cal Raleigh Over 3.5 Hits + Runs + RBIs
0%———
Cal Raleigh Under 1.5 Home Runs
——0%—
Christian Walker Over 1.5 Home Runs
0%———
Christian Walker Over 3.5 Hits + Runs + RBIs
0%———
Christian Walker Over 4.5 Hits + Runs + RBIs
0%———
Christian Walker Under 1.5 Home Runs
——0%—
Cole Young Under 1.5 Home Runs
——0%—
Daulton Varsho Under 1.5 Home Runs
——0%—
Dominic Canzone Under 1.5 Home Runs
——0%—
Isaac Paredes Under 1.5 Home Runs
——0%—
Jeremy Pena Under 1.5 Home Runs
——0%—
Jose Altuve Under 1.5 Home Runs
——0%—
Josh Naylor Under 1.5 Home Runs
——0%—
Julio Rodriguez Under 1.5 Home Runs
——0%—
Randy Arozarena Under 1.5 Home Runs
——0%—
Yainer Diaz Under 1.5 Home Runs
——0%—
Yordan Alvarez Under 1.5 Home Runs
——0%—
Brendan Donovan Over 1.5 Home Runs
————
Cole Young Over 1.5 Home Runs
————
Daulton Varsho Over 1.5 Home Runs
————
Dominic Canzone Over 1.5 Home Runs
————
Isaac Paredes Over 1.5 Home Runs
————
Jeremy Pena Over 1.5 Home Runs
————
Jose Altuve Over 1.5 Home Runs
————
Josh Naylor Over 1.5 Home Runs
————
Yainer Diaz Over 1.5 Home Runs
————

Resolution Oracles

KalshiKalshi
Kalshi Rules
PolymarketPolymarket
UMA Optimistic OracleConsensus of Sources
ProphetXProphetX
ProphetX Rules
Read Full Market Rulebooks
Stats
Spread85.0%
Platforms4
Candidates2
Winner

Seattle Mariners

74.3% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Seattle Mariners vs. Houston Astros (7:10 PM ET)

Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket and Polymarket US and ProphetX.

KalshiKalshi
Primary Rule

If Seattle wins the Seattle vs Houston professional baseball game originally scheduled for Aug 15, 2026 at 7:10 PM EDT, then the market resolves to Yes.

Edge Cases

The following market refers to the Seattle vs Houston professional baseball game originally scheduled for Aug 15, 2026 at 7:10 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. Kalshi is not affiliated, associated, authorized, endorsed by, or in any way officially connected with the Governing League. All trademarks, logos, and brand names are the property of their respective owners.

Resolution Oracles
Kalshi Rules
PolymarketPolymarket
Primary Rule

In the upcoming MLB game between the Seattle Mariners and Houston Astros, scheduled for August 15 at 7:10PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Houston Astros" if the Houston Astros 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.

Resolution Oracles
UMA Optimistic OracleConsensus of Sources
Polymarket USPolymarket US
Primary Rule

This market will settle to the winner of the Seattle Mariners vs Houston Astros MLB game scheduled for 2026-08-15 at 7:10PM ET. Extra innings are included if played. If the game is delayed, postponed, or suspended and not rescheduled to a date within two weeks of the originally scheduled date, the market will settle to the last fair market price. Outcome sourced from MLB.

ProphetXProphetX
Primary Rule

Sports moneyline - resolves based on official game outcome per ProphetX Prediction Rules

Resolution Oracles
ProphetX Rules

Frequently Asked Questions

What does the Seattle Mariners vs. Houston Astros (7:10 PM ET) prediction market track?

The outcomes listed above show how traders are pricing this question. Compare outcome prices from Kalshi, Polymarket US, Polymarket, ProphetX in one place. Each price reflects the market’s implied probability, not a guaranteed result. This event is archived; prices shown are historical.

What were the last available Seattle Mariners vs. Houston Astros (7:10 PM ET) odds?

The last available prices are Seattle Mariners: 99.0¢ on Kalshi, 14.0¢ on Polymarket, 98.9¢ on ProphetX, 85.5¢ on Polymarket US; Houston Astros: 1.0¢ on Kalshi, 14.0¢ on Polymarket, 6.0¢ on ProphetX, 14.5¢ on Polymarket US. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity. The last available price is not necessarily the final settlement price.

Why do Seattle Mariners vs. Houston Astros (7:10 PM ET) odds vary across prediction markets?

The largest price difference shown across venues is 85.0 percentage points. Venues have different traders, liquidity and fees, so their prices can differ. A price gap alone does not establish an executable arbitrage opportunity; compare settlement rules and the actual buy and sell prices.

How do Seattle Mariners vs. Houston Astros (7:10 PM ET) prediction market payouts work?

For example, Seattle Mariners at 74.3¢ implies about a 74.3% chance. For a standard $1 contract, a share pays $1 if its outcome settles as correct and $0 if it settles as incorrect. A winning share bought at 40¢ earns 60¢ before fees. Check each venue’s settlement rules, fees and eligibility before trading. Historical prices alone do not identify the winning outcome.

Learn more:How to Read Prediction Market PricesCompare Fees Before You TradeNew to Polymarket?

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Final odds
No price history available