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Live prediction market odds for Athletics vs. Houston Astros (8:10 PM ET). Compare prices across Kalshi and Polymarket US and Polymarket and ProphetX.

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Claim offerLegal in USAVerified Sep 14, 2026

MARKET RESOLVEDKalshi / Polymarket US / Polymarket / ProphetX

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Houston Astros Wins: Athletics vs. Houston Astros (8:10 PM ET)

MLB·Resolved 2026-08-21

This market resolved on 2026-08-21. Houston Astros was the officially declared outcome. Prior to resolution, the market peaked at 99%.

About This Market

Athletics vs.

Athletics vs. Houston Astros (8:10 PM ET) — MLB game held on 2026-08-21. 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
Jeff McNeil Under 1.5 Home Runs
——100%—
Jonah Heim Under 1.5 Home Runs
——99%—
Jose Altuve Under 1.5 Home Runs
——99%—
Carlos Cortes Under 0.5 Home Runs
———99%
Christian Walker Over 0.5 Hits
99%———
Christian Walker Over 0.5 Hits + Runs + RBIs
99%———
Christian Walker Over 0.5 RBIs
99%———
Christian Walker Over 1.5 Hits
99%———
Christian Walker Over 1.5 Total Bases
99%———
Christian Walker Over 2.5 Hits + Runs + RBIs
99%———
Daulton Varsho Under 0.5 Home Runs
——99%99%
Hayden Wesneski Under 3.5 Strikeouts
——99%—
Henry Bolte Under 0.5 Home Runs
———99%
Nick Allen Under 0.5 Home Runs
———99%
Over 2.5 runs scored
99%———
Yordan Alvarez Over 0.5 Hits
99%———
Yordan Alvarez Over 0.5 Hits + Runs + RBIs
99%———
Yordan Alvarez Over 0.5 RBIs
99%———
Yordan Alvarez Over 1.5 Hits
99%———
Yordan Alvarez Over 1.5 Hits + Runs + RBIs
99%———
Yordan Alvarez Over 1.5 RBIs
99%———
Yordan Alvarez Over 1.5 Total Bases
99%———
Yordan Alvarez Over 2.5 Total Bases
99%———
Yordan Alvarez Over 3.5 Hits + Runs + RBIs
99%———
Yordan Alvarez Over 3.5 Total Bases
99%———
Yordan Alvarez Over 4.5 Hits + Runs + RBIs
99%———
Zack Gelof Under 0.5 Home Runs
———99%
Cam Smith Under 0.5 Home Runs
———99%
Donovan Walton Under 0.5 Home Runs
———99%
Tommy White Under 0.5 Home Runs
———99%
Yainer Diaz Under 0.5 Home Runs
———99%
Lawrence Butler Under 1.5 Home Runs
——99%—
Isaac Paredes Under 1.5 Home Runs
——99%—
Christian Walker Under 0.5 Home Runs
——98%99%
Jonah Heim Under 0.5 Home Runs
——96%99%
Hayden Wesneski Under 5.5 Strikeouts
——1%96%
Houston Astros spread plus 4.5
———94%
Houston AstrosWINNER
99%100%94%100%
Jose Altuve Under 0.5 Home Runs
——94%99%
Taylor Trammell Under 0.5 Home Runs
———93%
Jeff McNeil Under 0.5 Home Runs
——92%99%
Total under 10.5
———92%
Isaac Paredes Under 0.5 Home Runs
——91%99%
Max Muncy Under 0.5 Home Runs
———90%
Houston Astros spread plus 3.5
———90%
Athletics spread plus 4.5
———89%
Total under 5.5
———88%
Yordan Alvarez Under 0.5 Home Runs
——77%99%
Lawrence Butler Under 0.5 Home Runs
——88%99%
Houston Astros spread plus 2.5
——82%90%
Total under 4.5
———86%
Total under 6.5
———84%
Total under 12.5
———84%
Houston wins by over 3.5 runs
99%——83%
Houston Astros spread plus 1.5
——74%92%
Total under 9.5
——62%98%
Daulton Varsho Under 1.5 Hits + Runs + RBIs
———77%
Jeff McNeil Under 1.5 Hits + Runs + RBIs
———77%
Total under 8.5
——51%98%
Carlos Cortes Under 0.5 Hits + Runs + RBIs
———73%
Jonah Heim Under 0.5 Hits + Runs + RBIs
———72%
Total over 3.5
99%——71%
Houston Astros spread plus 1.0
———71%
Total under 11.5
———70%
J.T. Ginn Over 4.5 Strikeouts
1%—50%88%
Jonah Heim Under 1.5 Hits + Runs + RBIs
———67%
Tommy White Under 1.5 Hits + Runs + RBIs
———67%
Houston Astros spread minus 1.5
99%—38%96%
Carlos Cortes Under 1.5 Hits + Runs + RBIs
———66%
Total over 7.0
———65%
J.T. Ginn Under 4.5 Strikeouts
——50%80%
Total under 7.5
——43%86%
Lawrence Butler Under 1.5 Hits + Runs + RBIs
———64%
Nick Allen Over 0.5 Hits + Runs + RBIs
———62%
Taylor Trammell Over 0.5 Hits + Runs + RBIs
———62%
Christian Walker Under 1.5 Hits + Runs + RBIs
———61%
Donovan Walton Over 0.5 Hits + Runs + RBIs
———61%
Isaac Paredes Under 1.5 Hits + Runs + RBIs
———60%
LaMonte Wade Jr. Under 1.5 Hits + Runs + RBIs
———60%
Yainer Diaz Under 1.5 Hits + Runs + RBIs
———60%
Zack Gelof Under 1.5 Hits + Runs + RBIs
———60%
Houston Astros spread minus 2.5
99%—34%87%
Yordan Alvarez Under 2.5 Hits + Runs + RBIs
———60%
Christian Walker Over 1.5 Home Runs
60%—1%—
Cam Smith Under 1.5 Hits + Runs + RBIs
———59%
Jose Altuve Over 1.5 Hits + Runs + RBIs
———59%
Nick Allen Under 0.5 Hits + Runs + RBIs
———59%
Max Muncy Over 0.5 Hits + Runs + RBIs
———58%
Total under 9.0
———58%
Henry Bolte Under 1.5 Hits + Runs + RBIs
———57%
Hayden Wesneski Over 1.5 Earned Runs
56%———
Houston Astros spread minus 1.0
———55%
Total over 8.0
———54%
Yainer Diaz Over 1.5 Hits + Runs + RBIs
———53%
Cam Smith Over 1.5 Hits + Runs + RBIs
———52%
Jose Altuve Under 1.5 Hits + Runs + RBIs
———52%
Hayden Wesneski Over 4.5 Strikeouts
1%—99%52%
Hayden Wesneski Under 4.5 Strikeouts
——1%51%
Tommy White Over 1.5 Hits + Runs + RBIs
———51%
J.T. Ginn Over 2.5 Earned Runs
51%———
Yordan Alvarez Over 2.5 Hits + Runs + RBIs
99%——50%
Zack Gelof Over 1.5 Hits + Runs + RBIs
———50%
Max Muncy Under 0.5 Hits + Runs + RBIs
———50%
Donovan Walton Under 0.5 Hits + Runs + RBIs
———50%
LaMonte Wade Jr. Over 1.5 Hits + Runs + RBIs
———50%
Henry Bolte Over 1.5 Hits + Runs + RBIs
———49%
Isaac Paredes Over 1.5 Hits + Runs + RBIs
———49%
Lawrence Butler Over 1.5 Hits + Runs + RBIs
———48%
Total under 8.0
———48%
Athletics spread plus 1.0
———47%
Christian Walker Over 1.5 Hits + Runs + RBIs
99%——46%
Carlos Cortes Over 1.5 Hits + Runs + RBIs
———46%
Taylor Trammell Under 0.5 Hits + Runs + RBIs
———46%
Total over 9.0
———44%
Yordan Alvarez Over 0.5 Home Runs
1%—77%8%
Jonah Heim Over 1.5 Hits + Runs + RBIs
———43%
Athletics spread plus 2.5
——66%17%
Total over 7.5
1%—57%19%
Daulton Varsho Over 1.5 Hits + Runs + RBIs
———38%
Jonah Heim Over 0.5 Hits + Runs + RBIs
———38%
Carlos Cortes Over 0.5 Hits + Runs + RBIs
———37%
Total under 7.0
———37%
J.T. Ginn Over 3.5 Strikeouts
99%—36%—
Total over 11.5
1%——35%
Jeff McNeil Over 1.5 Hits + Runs + RBIs
———34%
Total under 3.5
———33%
Athletics spread plus 1.5
——56%9%
Athletics spread minus 1.0
———31%
Total over 8.5
1%—49%12%
Athletics spread plus 3.5
———27%
Total over 9.5
1%—38%14%
Hayden Wesneski Over 5.5 Strikeouts
3%—99%41%
Athletics spread minus 1.5
1%—27%16%
Total over 12.5
1%——21%
Total over 6.5
1%——21%
Athletics
1%1%38%3%
Max Muncy Over 0.5 Home Runs
———19%
Total over 4.5
1%——19%
Yordan Alvarez Over 4.5 Total Bases
18%———
Total over 5.5
1%——16%
Athletics spread minus 2.5
1%—18%14%
Total over 10.5
1%——15%
Christian Walker Over 3.5 Total Bases
15%———
Houston Astros spread minus 4.5
———15%
Taylor Trammell Over 0.5 Home Runs
———15%
A's wins by over 3.5 runs
1%——14%
Cam Smith Over 0.5 Home Runs
———12%
Yainer Diaz Over 0.5 Home Runs
———12%
Donovan Walton Over 0.5 Home Runs
———10%
Zack Gelof Over 0.5 Home Runs
———10%
Athletics spread minus 4.5
———10%
Isaac Paredes Over 0.5 Home Runs
——9%10%
Yordan Alvarez Over 5.5 Total Bases
9%———
Nick Allen Over 0.5 Home Runs
———9%
Tommy White Over 0.5 Home Runs
———9%
Lawrence Butler Over 0.5 Home Runs
——12%4%
Hayden Wesneski Over 7.5 Strikeouts
8%———
Jose Altuve Over 0.5 Home Runs
——6%6%
Carlos Cortes Over 0.5 Home Runs
———6%
Christian Walker Over 2.5 Total Bases
6%———
Jonah Heim Over 0.5 Home Runs
——4%8%
Henry Bolte Over 0.5 Home Runs
———6%
Yordan Alvarez Over 0.5 Stolen Bases
5%———
Christian Walker Over 0.5 Home Runs
1%—1%5%
Daulton Varsho Over 0.5 Home Runs
——1%5%
Jeff McNeil Over 0.5 Home Runs
——5%5%
Hayden Wesneski Over 6.5 Strikeouts
3%———
Hayden Wesneski Over 8.5 Strikeouts
3%———
J.T. Ginn Over 5.5 Strikeouts
3%———
J.T. Ginn Over 6.5 Strikeouts
3%———
J.T. Ginn Over 7.5 Strikeouts
3%———
J.T. Ginn Over 8.5 Strikeouts
3%———
Yordan Alvarez Over 1.5 Home Runs
3%—100%—
Isaac Paredes Over 1.5 Home Runs
——2%—
Lawrence Butler Over 1.5 Home Runs
——1%—
Christian Walker Over 2.5 Hits
1%———
Christian Walker Over 3.5 Hits + Runs + RBIs
1%———
Christian Walker Over 4.5 Hits + Runs + RBIs
1%———
Hayden Wesneski Over 16.5 Pitcher Outs
1%———
J.T. Ginn Over 17.5 Pitcher Outs
1%———
Yordan Alvarez Over 2.5 Hits
1%———
Yordan Alvarez Over 3.5 Hits
1%———
Jose Altuve Over 1.5 Home Runs
——1%—
Jeff McNeil Over 1.5 Home Runs
——0%—
Christian Walker Over 1.5 RBIs
0%———
Christian Walker Over 2.5 RBIs
0%———
Christian Walker Over 4.5 Total Bases
0%———
Hayden Wesneski Over 0.5 Earned Runs
0%———
Hayden Wesneski Over 2.5 Earned Runs
0%———
Hayden Wesneski Over 3.5 Earned Runs
0%———
J.T. Ginn Over 0.5 Earned Runs
0%———
J.T. Ginn Over 1.5 Earned Runs
0%———
J.T. Ginn Over 3.5 Earned Runs
0%———
J.T. Ginn Over 4.5 Earned Runs
0%———
J.T. Ginn Over 5.5 Earned Runs
0%———
Yordan Alvarez Over 2.5 RBIs
0%———
Yordan Alvarez Over 6.5 Total Bases
0%———
Hayden Wesneski Over 2.5 Strikeouts
99%—1%—
Hayden Wesneski Over 3.5 Strikeouts
99%—1%—
J.T. Ginn Over 2.5 Strikeouts
99%—1%—

Resolution Oracles

KalshiKalshi
Kalshi Rules
PolymarketPolymarket
UMA Optimistic OracleConsensus of Sources
ProphetXProphetX
ProphetX Rules
Read Full Market Rulebooks
Stats
Spread37.5%
Platforms4
Candidates2
Winner

Houston Astros

98.0% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Athletics vs. Houston Astros (8:10 PM ET)

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

KalshiKalshi
Primary Rule

If A's wins the A's vs Houston professional baseball game originally scheduled for Aug 21, 2026 at 8:10 PM EDT, then the market resolves to Yes.

Edge Cases

The following market refers to the A's vs Houston professional baseball game originally scheduled for Aug 21, 2026 at 8:10 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 Athletics and Houston Astros, scheduled for August 21 at 8:10PM ET: This market will resolve to "Athletics" if the Athletics 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 Athletics vs Houston Astros MLB game scheduled for 2026-08-21 at 8:10PM 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 Athletics vs. Houston Astros (8:10 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 Athletics vs. Houston Astros (8:10 PM ET) odds?

The last available prices are Houston Astros: 99.0¢ on Kalshi, 94.0¢ on Polymarket, 99.6¢ on ProphetX, 99.5¢ on Polymarket US; Athletics: 1.0¢ on Kalshi, 38.0¢ on Polymarket, 3.0¢ on ProphetX, 0.5¢ 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 Athletics vs. Houston Astros (8:10 PM ET) odds vary across prediction markets?

The largest price difference shown across venues is 37.5 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 Athletics vs. Houston Astros (8:10 PM ET) prediction market payouts work?

For example, Houston Astros at 98.0¢ implies about a 98.0% 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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