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.
Live prediction market odds for Athletics vs. Houston Astros (8:10 PM ET). Compare prices across Kalshi and Polymarket US and Polymarket and ProphetX.
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%.
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.
| Candidate | ![]() | ![]() | ![]() | |
|---|---|---|---|---|
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% | — |
Houston Astros
98.0% avg
Official settlement criteria, resolution sources, and edge cases across Kalshi and Polymarket and Polymarket US and ProphetX.
KalshiIf 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.
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.
PolymarketIn 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.
Polymarket USThis 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.
Sports moneyline - resolves based on official game outcome per ProphetX Prediction Rules
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.
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.
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.
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.