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Live prediction market odds for Houston Astros vs. San Francisco Giants (3:45 PM ET). Compare prices across Kalshi and Polymarket US and Polymarket and ProphetX.

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MARKET RESOLVEDKalshi / Polymarket US / Polymarket / ProphetX

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Houston Astros Wins: Houston Astros vs. San Francisco Giants (3:45 PM ET)

MLB·Resolved 2026-08-12

This market resolved on 2026-08-12. Houston Astros was the officially declared outcome. Prior to resolution, the market peaked at 94%.

About This Market

Houston Astros vs.

Houston Astros vs. San Francisco Giants (3:45 PM ET) — MLB game held on 2026-08-12. 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
Cam Smith Under 0.5 Home Runs
———99%
Isaac Paredes Over 0.5 Hits + Runs + RBIs
99%———
Jeremy Pena Over 0.5 Hits + Runs + RBIs
99%———
Over 2.5 runs scored
99%———
Yordan Alvarez Over 0.5 Hits + Runs + RBIs
99%———
Rafael Devers Under 0.5 Home Runs
———99%
Houston Astros spread plus 4.5
———94%
Total under 8.5
——96%90%
Houston Astros spread plus 3.5
———92%
Total under 6.5
———91%
Adrian Houser Over 1.5 Strikeouts
99%—91%—
Adrian Houser Over 3.5 Strikeouts
99%—91%99%
Bryce Eldridge Under 0.5 Home Runs
——81%99%
Daulton Varsho Under 0.5 Home Runs
——81%99%
Isaac Paredes Under 0.5 Home Runs
——81%99%
Jeremy Pena Under 0.5 Home Runs
——81%99%
Victor Bericoto Under 0.5 Home Runs
——81%99%
Taylor Trammell Under 0.5 Home Runs
——81%98%
Drew Gilbert Under 0.5 Home Runs
——80%99%
Houston Astros spread plus 1.5
——90%86%
Houston AstrosWINNER
99%88%100%86%
Christian Walker Under 0.5 Home Runs
——80%94%
Drew Gilbert Under 0.5 Hits + Runs + RBIs
———87%
San Francisco Giants spread plus 1.5
——99%87%
Yordan Alvarez Under 0.5 Home Runs
——79%94%
Willy Adames Under 0.5 Home Runs
——84%87%
Total under 5.5
———84%
San Francisco Giants spread plus 2.5
——82%85%
San Francisco Giants spread plus 4.5
———83%
Osleivis Basabe Under 0.5 Home Runs
——81%99%
Nick Allen Under 1.5 Hits + Runs + RBIs
———80%
Total under 7.5
——84%77%
Bryce Eldridge Under 1.5 Home Runs
——80%—
Christian Koss Under 0.5 Home Runs
——80%99%
Christian Koss Under 1.5 Home Runs
——80%—
Christian Walker Under 1.5 Home Runs
——80%—
Daulton Varsho Under 1.5 Home Runs
——80%—
Drew Gilbert Under 1.5 Home Runs
——80%—
Isaac Paredes Under 1.5 Home Runs
——80%—
Jeremy Pena Under 1.5 Home Runs
——80%—
Jung Hoo Lee Under 0.5 Home Runs
——80%99%
Jung Hoo Lee Under 1.5 Home Runs
——80%—
Nick Allen Under 0.5 Home Runs
——80%—
Nick Allen Under 1.5 Home Runs
——80%—
Osleivis Basabe Under 1.5 Home Runs
——80%—
Taylor Trammell Under 1.5 Home Runs
——80%—
Victor Bericoto Under 1.5 Home Runs
——80%—
Willy Adames Under 1.5 Home Runs
——80%—
Yordan Alvarez Under 1.5 Home Runs
——80%—
Houston Astros spread plus 2.5
——76%81%
Adrian Houser Over 2.5 Strikeouts
99%—91%65%
Total under 11.5
———77%
San Francisco Giants spread plus 3.5
———76%
Total under 9.5
——79%64%
Total under 10.5
———71%
Osleivis Basabe Under 1.5 Hits + Runs + RBIs
———65%
Victor Bericoto Over 0.5 Hits + Runs + RBIs
99%——65%
Christian Vazquez Under 1.5 Hits + Runs + RBIs
———63%
Nick Allen Under 0.5 Hits + Runs + RBIs
———63%
Taylor Trammell Under 1.5 Hits + Runs + RBIs
———62%
Victor Bericoto Under 1.5 Hits + Runs + RBIs
———62%
Houston Astros spread minus 1.0
———62%
Jeremy Pena Under 2.5 Hits + Runs + RBIs
———61%
Total under 9.0
———59%
Willy Adames Under 1.5 Hits + Runs + RBIs
———59%
Yordan Alvarez Under 2.5 Hits + Runs + RBIs
———59%
Andrew Knizner Over 0.5 Hits + Runs + RBIs
———58%
Bryce Eldridge Under 1.5 Hits + Runs + RBIs
———58%
Christian Koss Over 0.5 Hits + Runs + RBIs
99%——58%
Rafael Devers Under 1.5 Hits + Runs + RBIs
———58%
Daulton Varsho Over 1.5 Hits + Runs + RBIs
53%——55%
Houston Astros spread plus 1.0
———54%
Jose Altuve Over 1.5 Hits + Runs + RBIs
———53%
Jose Altuve Under 1.5 Hits + Runs + RBIs
———53%
Total over 8.0
———53%
Yainer Diaz Over 1.5 Hits + Runs + RBIs
———53%
Yainer Diaz Under 1.5 Hits + Runs + RBIs
———53%
Isaac Paredes Over 1.5 Hits + Runs + RBIs
52%——55%
Cam Smith Under 1.5 Hits + Runs + RBIs
———52%
Christian Walker Under 1.5 Hits + Runs + RBIs
———52%
Cam Smith Over 1.5 Hits + Runs + RBIs
51%——54%
San Francisco Giants spread minus 1.0
———52%
Andrew Knizner Under 0.5 Hits + Runs + RBIs
———51%
Daulton Varsho Under 1.5 Hits + Runs + RBIs
———51%
Christian Walker Over 1.5 Hits + Runs + RBIs
48%——54%
Isaac Paredes Under 1.5 Hits + Runs + RBIs
———51%
Yordan Alvarez Over 1.5 Hits + Runs + RBIs
40%——61%
Jung Hoo Lee Under 1.5 Hits + Runs + RBIs
———50%
Total under 8.0
———49%
Rafael Devers Over 1.5 Hits + Runs + RBIs
51%——47%
Nick Allen Over 0.5 Hits + Runs + RBIs
99%——49%
Jung Hoo Lee Over 1.5 Hits + Runs + RBIs
38%——57%
Christian Koss Under 0.5 Hits + Runs + RBIs
———47%
Willy Adames Over 1.5 Hits + Runs + RBIs
99%——46%
Bryce Eldridge Over 1.5 Hits + Runs + RBIs
45%——46%
San Francisco Giants spread plus 1.0
———45%
Taylor Trammell Over 1.5 Hits + Runs + RBIs
99%——45%
Total over 9.0
———43%
Victor Bericoto Over 1.5 Hits + Runs + RBIs
99%——43%
LaMonte Wade Jr. Over 1.5 Hits + Runs + RBIs
43%——43%
Osleivis Basabe Over 1.5 Hits + Runs + RBIs
0%——43%
Jeremy Pena Over 2.5 Hits + Runs + RBIs
41%——44%
Drew Gilbert Over 0.5 Hits + Runs + RBIs
1%——41%
Yordan Alvarez Over 2.5 Hits + Runs + RBIs
36%——46%
Victor Bericoto Under 0.5 Hits + Runs + RBIs
———40%
Christian Vazquez Over 1.5 Hits + Runs + RBIs
36%——42%
Christian Koss Over 1.5 Hits + Runs + RBIs
99%——38%
Christian Vazquez Over 0.5 Hits + Runs + RBIs
1%——38%
Adrian Houser Under 3.5 Strikeouts
——10%60%
Total over 10.5
1%——33%
Isaac Paredes Over 2.5 Hits + Runs + RBIs
33%———
Rafael Devers Over 2.5 Hits + Runs + RBIs
33%———
Total over 9.5
1%—21%38%
Nick Allen Over 1.5 Hits + Runs + RBIs
99%——29%
Houston Astros spread minus 1.5
1%—1%28%
Yordan Alvarez Over 3.5 Hits + Runs + RBIs
28%———
Drew Gilbert Over 1.5 Hits + Runs + RBIs
12%——43%
Total over 5.5
1%——27%
Total over 11.5
1%——26%
Houston wins by over 3.5 runs
1%——26%
LaMonte Wade Jr. Over 2.5 Hits + Runs + RBIs
24%———
Adrian Houser Under 2.5 Strikeouts
——10%36%
Total over 7.5
1%—16%26%
Rafael Devers Over 3.5 Hits + Runs + RBIs
21%———
Total over 6.5
1%——20%
Daulton Varsho Over 1.5 Home Runs
20%———
Houston Astros spread minus 4.5
———19%
San Francisco Giants spread minus 3.5
1%——19%
San Francisco Giants spread minus 2.5
1%—24%11%
Jeremy Pena Over 4.5 Hits + Runs + RBIs
17%———
Yordan Alvarez Over 4.5 Hits + Runs + RBIs
17%———
Houston Astros spread minus 2.5
1%—18%16%
LaMonte Wade Jr. Over 3.5 Hits + Runs + RBIs
15%———
Total over 8.5
1%—4%25%
Rafael Devers Over 0.5 Home Runs
1%——14%
Yordan Alvarez Over 0.5 Home Runs
4%—21%14%
Christian Walker Over 4.5 Hits + Runs + RBIs
14%———
Cam Smith Over 4.5 Hits + Runs + RBIs
13%———
Willy Adames Over 0.5 Home Runs
1%—16%9%
San Francisco Giants
1%12%0%12%
Christian Walker Over 0.5 Home Runs
11%——12%
San Francisco Giants spread minus 4.5
———10%
San Francisco Giants spread minus 1.5
1%—10%10%
Adrian Houser Under 1.5 Strikeouts
——10%—
Daulton Varsho Over 0.5 Home Runs
7%——10%
Osleivis Basabe Over 0.5 Home Runs
1%——8%
Taylor Trammell Over 0.5 Home Runs
4%——10%
Cam Smith Over 0.5 Home Runs
1%——7%
LaMonte Wade Jr. Over 0.5 Home Runs
4%——8%
Christian Koss Over 0.5 Home Runs
5%——6%
Drew Cavanaugh Over 0.5 Home Runs
2%——9%
Bryce Eldridge Over 0.5 Home Runs
2%——8%
Drew Gilbert Over 0.5 Home Runs
3%——7%
Isaac Paredes Over 0.5 Home Runs
3%——7%
Jeremy Pena Over 0.5 Home Runs
3%——7%
Victor Bericoto Over 0.5 Home Runs
3%——7%
Christian Vazquez Over 0.5 Home Runs
4%——6%
Jung Hoo Lee Over 0.5 Home Runs
2%——6%
Yordan Alvarez Over 1.5 Home Runs
4%———
Nick Allen Over 0.5 Home Runs
2%———
Cam Smith Over 0.5 Hits + Runs + RBIs
1%———
Cam Smith Over 1.5 Home Runs
1%———
Daulton Varsho Over 0.5 Hits + Runs + RBIs
1%———
Jeremy Pena Over 1.5 Hits + Runs + RBIs
1%———
Jung Hoo Lee Over 1.5 Home Runs
1%———
LaMonte Wade Jr. Over 0.5 Hits + Runs + RBIs
1%———
Over 12.5 runs scored
1%———
Over 3.5 runs scored
1%———
Over 4.5 runs scored
1%———
Rafael Devers Over 0.5 Hits + Runs + RBIs
1%———
Rafael Devers Over 1.5 Home Runs
1%———
Bryce Eldridge Over 1.5 Home Runs
0%———
Cam Smith Over 2.5 Hits + Runs + RBIs
0%———
Cam Smith Over 3.5 Hits + Runs + RBIs
0%———
Christian Koss Over 1.5 Home Runs
0%———
Christian Vazquez Over 2.5 Hits + Runs + RBIs
0%———
Christian Vazquez Over 3.5 Hits + Runs + RBIs
0%———
Christian Vazquez Over 4.5 Hits + Runs + RBIs
0%———
Christian Walker Over 0.5 Hits + Runs + RBIs
0%———
Christian Walker Over 1.5 Home Runs
0%———
Christian Walker Over 2.5 Hits + Runs + RBIs
0%———
Christian Walker Over 3.5 Hits + Runs + RBIs
0%———
Daulton Varsho Over 2.5 Hits + Runs + RBIs
0%———
Daulton Varsho Over 3.5 Hits + Runs + RBIs
0%———
Daulton Varsho Over 4.5 Hits + Runs + RBIs
0%———
Drew Cavanaugh Over 1.5 Home Runs
0%———
Drew Gilbert Over 1.5 Home Runs
0%———
Isaac Paredes Over 1.5 Home Runs
0%———
Isaac Paredes Over 3.5 Hits + Runs + RBIs
0%———
Isaac Paredes Over 4.5 Hits + Runs + RBIs
0%———
Jeremy Pena Over 1.5 Home Runs
0%———
Jeremy Pena Over 3.5 Hits + Runs + RBIs
0%———
LaMonte Wade Jr. Over 1.5 Home Runs
0%———
Rafael Devers Over 4.5 Hits + Runs + RBIs
0%———
Taylor Trammell Over 1.5 Home Runs
0%———
Victor Bericoto Over 1.5 Home Runs
0%———
Willy Adames Over 1.5 Home Runs
0%———
Nick Allen Over 1.5 Home Runs
————
Osleivis Basabe Over 1.5 Home Runs
————

Resolution Oracles

KalshiKalshi
Kalshi Rules
PolymarketPolymarket
UMA Optimistic OracleConsensus of Sources
ProphetXProphetX
ProphetX Rules
Read Full Market Rulebooks
Stats
Spread13.6%
Platforms4
Candidates2
Winner

Houston Astros

93.3% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Houston Astros vs. San Francisco Giants (3:45 PM ET)

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

KalshiKalshi
Primary Rule

If Houston wins the Houston vs San Francisco professional baseball game originally scheduled for Aug 12, 2026 at 3:45 PM EDT, then the market resolves to Yes.

Edge Cases

The following market refers to the Houston vs San Francisco professional baseball game originally scheduled for Aug 12, 2026 at 3:45 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 Houston Astros and San Francisco Giants, scheduled for August 12 at 3:45PM ET: This market will resolve to "Houston Astros" if the Houston Astros win the game. This market will resolve to "San Francisco Giants" if the San Francisco Giants 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 Houston Astros vs San Francisco Giants MLB game scheduled for 2026-08-12 at 3:45PM 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 Houston Astros vs. San Francisco Giants (3:45 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 Houston Astros vs. San Francisco Giants (3:45 PM ET) odds?

The last available prices are Houston Astros: 99.0¢ on Kalshi, 99.9¢ on Polymarket, 86.3¢ on ProphetX, 88.0¢ on Polymarket US; San Francisco Giants: 1.0¢ on Kalshi, 0.1¢ on Polymarket, 12.1¢ on ProphetX, 12.0¢ 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 Houston Astros vs. San Francisco Giants (3:45 PM ET) odds vary across prediction markets?

The largest price difference shown across venues is 13.6 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 Houston Astros vs. San Francisco Giants (3:45 PM ET) prediction market payouts work?

For example, Houston Astros at 93.3¢ implies about a 93.3% 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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