Kalshi

4.9

Sign-up bonus

Get a $35 trading bonus

Sign-up bonus on Kalshi.

Claim offerLegal in USAVerified Sep 14, 2026

MARKET RESOLVEDKalshi / Polymarket US / Novig / Polymarket / ProphetX

Houston Astros Wins: Kansas City Royals vs. Houston Astros (8:10 PM ET)

MLB·Resolved 2026-09-15

This market resolved on 2026-09-15. Houston Astros was the officially declared outcome. Prior to resolution, the market peaked at 76%.

Final Closing Odds

5 platforms

Candidate
Jose Altuve Under 1.5 Home Runs	—	—	—	100%	—
Jeremy Pena Over 3.5 Hits + Runs + RBIs	100%	—	—	—	—
Jeremy Pena Over 4.5 Hits + Runs + RBIs	100%	—	—	—	—
Carter Jensen Under 3.5 Hits + Runs + RBIs	—	—	—	99%	—
Christian Walker Under 4.5 Hits + Runs + RBIs	—	—	—	99%	—
Isaac Paredes Under 5.5 Hits + Runs + RBIs	—	—	—	99%	—
Jac Caglianone Under 2.5 Hits + Runs + RBIs	—	—	—	99%	—
Jac Caglianone Under 3.5 Hits + Runs + RBIs	—	—	—	99%	—
Jeremy Pena Over 5.5 Hits + Runs + RBIs	—	—	—	99%	—
Michael Wacha Under 2.5 Strikeouts	—	—	—	99%	—
Michael Wacha Under 6.5 Strikeouts	—	—	—	99%	—
Salvador Perez Under 5.5 Hits + Runs + RBIs	—	—	—	99%	—
Michael Massey Under 0.5 Home Runs	—	—	—	—	93%
Houston Astros spread plus 2.5	—	—	—	79%	95%
Isaac Paredes Under 0.5 Home Runs	—	—	—	99%	86%
Jose Altuve Under 0.5 Home Runs	—	—	—	82%	89%
Daulton Varsho Under 0.5 Home Runs	—	—	—	81%	90%
Salvador Perez Under 0.5 Home Runs	—	—	—	81%	89%
Jac Caglianone Under 0.5 Home Runs	—	—	—	81%	88%
Houston Astros spread plus 1.5	—	—	—	71%	98%
Carter Jensen Under 0.5 Home Runs	—	—	—	81%	86%
Christian Walker Under 0.5 Home Runs	—	—	—	81%	84%
Bobby Witt Jr. Under 0.5 Home Runs	—	—	—	81%	84%
Total under 10.5	—	—	—	—	82%
Hunter Brown Over 3.5 Strikeouts	99%	—	—	82%	—
Hunter Brown Over 4.5 Strikeouts	99%	—	—	82%	—
Hunter Brown Over 7.5 Strikeouts	99%	—	—	82%	—
Michael Wacha Under 7.5 Strikeouts	—	—	—	82%	—
Vinnie Pasquantino Under 1.5 Home Runs	—	—	—	81%	—
Carter Jensen Under 2.5 Hits + Runs + RBIs	—	—	—	81%	—
Carter Jensen Under 4.5 Hits + Runs + RBIs	—	—	—	81%	—
Carter Jensen Under 5.5 Hits + Runs + RBIs	—	—	—	81%	—
Christian Walker Under 0.5 Hits + Runs + RBIs	—	—	—	81%	—
Christian Walker Under 1.5 Home Runs	—	—	—	81%	—
Christian Walker Under 2.5 Hits + Runs + RBIs	—	—	—	81%	—
Christian Walker Under 3.5 Hits + Runs + RBIs	—	—	—	81%	—
Daulton Varsho Under 1.5 Home Runs	—	—	—	81%	—
Daulton Varsho Under 2.5 Hits + Runs + RBIs	—	—	—	81%	—
Daulton Varsho Under 3.5 Hits + Runs + RBIs	—	—	—	81%	—
Isaac Paredes Under 0.5 Hits + Runs + RBIs	—	—	—	81%	—
Jac Caglianone Under 5.5 Hits + Runs + RBIs	—	—	—	81%	—
Jose Altuve Under 0.5 Hits + Runs + RBIs	—	—	—	81%	—
Jose Altuve Under 2.5 Hits + Runs + RBIs	—	—	—	81%	—
Jose Altuve Under 3.5 Hits + Runs + RBIs	—	—	—	81%	—
Jose Altuve Under 4.5 Hits + Runs + RBIs	—	—	—	81%	—
Jose Altuve Under 5.5 Hits + Runs + RBIs	—	—	—	81%	—
Vinnie Pasquantino Over 0.5 Hits + Runs + RBIs	—	—	—	81%	—
Vinnie Pasquantino Over 2.5 Hits + Runs + RBIs	—	—	—	81%	—
Vinnie Pasquantino Under 3.5 Hits + Runs + RBIs	—	—	—	81%	—
Vinnie Pasquantino Under 4.5 Hits + Runs + RBIs	—	—	—	81%	—
Yordan Alvarez Under 1.5 Home Runs	—	—	—	81%	—
Yordan Alvarez Under 4.5 Hits + Runs + RBIs	—	—	—	81%	—
Yordan Alvarez Under 5.5 Hits + Runs + RBIs	—	—	—	81%	—
Total under 9.5	—	—	—	—	81%
Kansas City Royals spread plus 2.5	—	—	—	71%	90%
Carter Jensen Under 1.5 Home Runs	—	—	—	80%	—
Yordan Alvarez Under 0.5 Home Runs	—	—	—	76%	80%
Taylor Trammell Over 0.5 Hits + Runs + RBIs	—	—	—	—	78%
Kansas City Royals spread plus 3.5	—	—	62%	—	91%
Nick Loftin Under 0.5 Hits + Runs + RBIs	—	—	—	81%	67%
Christian Walker Under 1.5 Hits + Runs + RBIs	—	—	—	81%	61%
Daulton Varsho Under 1.5 Hits + Runs + RBIs	—	—	—	81%	61%
Houston Astros spread plus 1.0	—	—	—	—	70%
Salvador Perez Under 1.5 Hits + Runs + RBIs	—	—	—	81%	57%
Taylor Trammell Under 0.5 Hits + Runs + RBIs	—	—	—	—	69%
Jac Caglianone Under 1.5 Hits + Runs + RBIs	—	—	—	81%	57%
Hunter Brown Over 5.5 Strikeouts	99%	—	—	82%	54%
Houston AstrosWINNER	100%	59%	60%	76%	98%
Michael Massey Under 1.5 Hits + Runs + RBIs	—	—	—	—	66%
Cam Smith Under 1.5 Hits + Runs + RBIs	—	—	—	—	64%
Vinnie Pasquantino Over 1.5 Hits + Runs + RBIs	—	—	—	81%	47%
Hunter Brown Over 6.5 Strikeouts	99%	—	—	82%	41%
Isaac Collins Over 0.5 Hits + Runs + RBIs	—	—	—	—	61%
Kyle Isbel Over 0.5 Hits + Runs + RBIs	—	—	—	—	61%
Isaac Paredes Under 1.5 Hits + Runs + RBIs	—	—	—	99%	59%
Kansas City Royals spread plus 1.5	—	—	60%	58%	19%
Yainer Diaz Over 1.5 Hits + Runs + RBIs	—	—	—	—	55%
Total under 8.5	—	—	55%	55%	74%
Jeremy Pena Over 1.5 Hits + Runs + RBIs	53%	—	—	—	57%
Total under 8.0	—	—	—	—	54%
Vinnie Pasquantino Under 0.5 Home Runs	—	—	—	18%	89%
Bobby Witt Jr. Under 1.5 Hits + Runs + RBIs	—	—	—	99%	53%
Jose Altuve Under 1.5 Hits + Runs + RBIs	—	—	—	99%	53%
Kansas City Royals spread plus 1.0	—	—	—	—	53%
Houston Astros spread minus 1.0	—	—	—	—	52%
Yainer Diaz Under 1.5 Hits + Runs + RBIs	—	—	—	—	52%
Yordan Alvarez Over 0.5 Home Runs	99%	—	—	76%	28%
Jeremy Pena Under 0.5 Home Runs	—	—	—	18%	85%
Total over 8.0	—	—	—	—	51%
Michael Wacha Under 4.5 Strikeouts	—	—	—	48%	53%
Yordan Alvarez Over 0.5 Hits + Runs + RBIs	51%	—	—	—	—
Hunter Brown Under 5.5 Strikeouts	—	—	—	1%	50%
Michael Wacha Over 4.5 Strikeouts	1%	—	—	48%	50%
Jeremy Pena Over 0.5 Home Runs	99%	—	—	82%	16%
Nick Loftin Over 0.5 Hits + Runs + RBIs	—	—	—	19%	78%
Vinnie Pasquantino Over 0.5 Home Runs	—	—	—	82%	14%
Kyle Isbel Under 0.5 Hits + Runs + RBIs	—	—	—	—	47%
Christian Walker Over 1.5 Hits + Runs + RBIs	46%	—	—	19%	47%
Total under 7.5	—	—	46%	46%	88%
Cam Smith Over 1.5 Hits + Runs + RBIs	—	—	—	—	46%
Isaac Collins Under 0.5 Hits + Runs + RBIs	—	—	—	—	46%
Total over 8.5	1%	—	46%	45%	29%
Jac Caglianone Over 1.5 Hits + Runs + RBIs	44%	—	—	1%	46%
Yordan Alvarez Over 1.5 Hits + Runs + RBIs	30%	—	—	—	60%
Hunter Brown Under 6.5 Strikeouts	—	—	—	18%	71%
Isaac Paredes Over 1.5 Hits + Runs + RBIs	37%	—	—	1%	50%
Salvador Perez Over 1.5 Hits + Runs + RBIs	43%	—	—	19%	50%
Michael Massey Over 1.5 Hits + Runs + RBIs	—	—	—	—	42%
Houston Astros spread minus 1.5	100%	—	40%	42%	85%
Carter Jensen Over 0.5 Hits + Runs + RBIs	41%	—	—	—	—
Carter Jensen Under 1.5 Hits + Runs + RBIs	—	—	—	19%	60%
Total over 6.5	10%	—	65%	71%	14%
Vinnie Pasquantino Under 1.5 Hits + Runs + RBIs	—	—	—	19%	58%
Jose Altuve Over 1.5 Hits + Runs + RBIs	38%	—	—	19%	50%
Kansas City Royals spread minus 1.0	—	—	—	—	36%
Houston Astros spread minus 2.5	1%	—	—	58%	14%
Total under 6.5	—	—	36%	35%	89%
Jeremy Pena Under 1.5 Hits + Runs + RBIs	—	—	—	19%	51%
Total over 7.5	5%	—	54%	54%	16%
Jeremy Pena Over 2.5 Hits + Runs + RBIs	35%	—	—	—	—
Yordan Alvarez Under 1.5 Hits + Runs + RBIs	—	—	—	19%	49%
Daulton Varsho Over 1.5 Hits + Runs + RBIs	—	—	—	19%	48%
Carter Jensen Over 1.5 Hits + Runs + RBIs	14%	—	—	—	49%
Bobby Witt Jr. Over 1.5 Hits + Runs + RBIs	31%	—	—	19%	53%
Kansas City Royals	1%	41%	41%	21%	5%
Salvador Perez Over 2.5 Hits + Runs + RBIs	28%	—	—	1%	—
Houston wins by over 3.5 runs	1%	—	39%	—	13%
Yordan Alvarez Over 4.5 Hits + Runs + RBIs	31%	—	—	19%	—
Jac Caglianone Over 2.5 Hits + Runs + RBIs	23%	—	—	1%	—
Jose Altuve Over 2.5 Hits + Runs + RBIs	23%	—	—	19%	—
Christian Walker Over 2.5 Hits + Runs + RBIs	21%	—	—	19%	—
Carter Jensen Over 5.5 Hits + Runs + RBIs	—	—	—	19%	—
Christian Walker Over 0.5 Hits + Runs + RBIs	1%	—	—	19%	—
Christian Walker Over 5.5 Hits + Runs + RBIs	—	—	—	19%	—
Daulton Varsho Over 3.5 Hits + Runs + RBIs	—	—	—	19%	—
Daulton Varsho Over 4.5 Hits + Runs + RBIs	—	—	—	19%	—
Isaac Paredes Over 5.5 Hits + Runs + RBIs	—	—	—	19%	—
Jac Caglianone Over 5.5 Hits + Runs + RBIs	—	—	—	19%	—
Jose Altuve Over 0.5 Hits + Runs + RBIs	1%	—	—	19%	—
Salvador Perez Under 0.5 Hits + Runs + RBIs	—	—	—	19%	—
Vinnie Pasquantino Under 0.5 Hits + Runs + RBIs	—	—	—	19%	—
Vinnie Pasquantino Under 2.5 Hits + Runs + RBIs	—	—	—	19%	—
Vinnie Pasquantino Over 1.5 Home Runs	—	—	—	19%	—
Christian Walker Over 0.5 Home Runs	2%	—	—	19%	19%
Bobby Witt Jr. Over 0.5 Home Runs	1%	—	—	19%	18%
Michael Wacha Over 3.5 Strikeouts	1%	—	—	18%	—
Michael Wacha Over 7.5 Strikeouts	1%	—	—	18%	—
Isaac Paredes Over 0.5 Home Runs	2%	—	—	19%	18%
Carter Jensen Over 0.5 Home Runs	2%	—	—	19%	18%
Salvador Perez Over 3.5 Hits + Runs + RBIs	16%	—	—	19%	—
Daulton Varsho Over 0.5 Home Runs	—	—	—	19%	15%
Carter Jensen Over 2.5 Hits + Runs + RBIs	14%	—	—	19%	—
Jac Caglianone Over 3.5 Hits + Runs + RBIs	13%	—	—	19%	—
Yordan Alvarez Over 2.5 Hits + Runs + RBIs	16%	—	—	—	—
Total under 5.5	—	—	—	—	16%
Christian Walker Over 3.5 Hits + Runs + RBIs	12%	—	—	19%	—
Jose Altuve Over 3.5 Hits + Runs + RBIs	12%	—	—	19%	—
Carter Jensen Over 3.5 Hits + Runs + RBIs	11%	—	—	19%	—
Isaac Paredes Over 2.5 Hits + Runs + RBIs	11%	—	—	19%	—
Cam Smith Over 0.5 Home Runs	—	—	—	—	15%
Taylor Trammell Over 0.5 Home Runs	—	—	—	—	15%
Jose Altuve Over 0.5 Home Runs	13%	—	—	18%	14%
Yainer Diaz Over 0.5 Home Runs	—	—	—	—	14%
Salvador Perez Over 0.5 Home Runs	13%	—	—	1%	14%
Jose Altuve Over 4.5 Hits + Runs + RBIs	7%	—	—	19%	—
Total over 9.5	3%	—	—	—	23%
Carter Jensen Over 1.5 Home Runs	2%	—	—	20%	—
Jac Caglianone Over 1.5 Home Runs	2%	—	—	20%	—
Salvador Perez Over 1.5 Home Runs	2%	—	—	20%	—
Michael Massey Over 0.5 Home Runs	—	—	—	—	11%
Jac Caglianone Over 0.5 Home Runs	2%	—	—	1%	17%
Kansas City Royals spread minus 2.5	4%	—	—	22%	9%
Salvador Perez Over 4.5 Hits + Runs + RBIs	9%	—	—	1%	—
Yordan Alvarez Over 3.5 Hits + Runs + RBIs	9%	—	—	—	—
Isaac Collins Over 0.5 Home Runs	—	—	—	—	8%
Kyle Isbel Over 0.5 Home Runs	—	—	—	—	8%
Kansas City Royals spread minus 1.5	2%	—	—	9%	6%
Christian Walker Over 1.5 Home Runs	2%	—	—	0%	—
Daulton Varsho Over 5.5 Hits + Runs + RBIs	—	—	—	1%	—
Hunter Brown Under 7.5 Strikeouts	—	—	—	1%	—
Isaac Paredes Over 0.5 Hits + Runs + RBIs	1%	—	—	1%	—
Jeremy Pena Under 0.5 Hits + Runs + RBIs	—	—	—	1%	—
Jeremy Pena Under 3.5 Hits + Runs + RBIs	—	—	—	1%	—
Jeremy Pena Under 5.5 Hits + Runs + RBIs	—	—	—	1%	—
Michael Wacha Over 2.5 Strikeouts	1%	—	—	1%	—
Vinnie Pasquantino Over 3.5 Hits + Runs + RBIs	—	—	—	1%	—
Vinnie Pasquantino Over 4.5 Hits + Runs + RBIs	—	—	—	1%	—
Vinnie Pasquantino Over 5.5 Hits + Runs + RBIs	—	—	—	1%	—
Yordan Alvarez Under 0.5 Hits + Runs + RBIs	—	—	—	1%	—
Jose Altuve Over 1.5 Home Runs	1%	—	—	0%	—
Daulton Varsho Over 1.5 Home Runs	—	—	—	0%	—
Nick Loftin Over 0.5 Home Runs	—	—	—	0%	—
Kansas City wins by over 3.5 runs	—	—	—	—	—
Over 12.5 runs scored	—	—	—	—	—
Over 2.5 runs scored	—	—	—	—	—
Over 3.5 runs scored	—	—	—	—	—
Total over 10.5	—	—	—	—	—
Total over 11.5	—	—	—	—	—
Total over 4.5	—	—	—	—	—
Total over 5.5	—	—	—	—	—

Market RulebooksOfficial settlement criteria and edge cases

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

Rules for Candidate:

Kalshi

Primary Rule

If Houston wins the Kansas City vs Houston professional baseball game originally scheduled for Sep 15, 2026 at 8:10 PM EDT, then the market resolves to Yes.

Edge Cases

The following market refers to the Kansas City vs Houston professional baseball game originally scheduled for Sep 15, 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

Novig

Primary Rule

Houston Astros in Kansas City Royals @ Houston Astros (MLB); settled by Novig.

Edge Cases

If the contract cannot be settled on the stated outcome, Novig settles it at fair market value (FMV) instead of refunding it.

Polymarket

Primary Rule

In the upcoming MLB game between the Kansas City Royals and Houston Astros, scheduled for September 15 at 8:10PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 US

Primary Rule

This market will settle to the winner of the Kansas City Royals vs Houston Astros MLB game scheduled for 2026-09-15 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.

ProphetX

Primary Rule

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

Resolution Oracles

ProphetX Rules

Frequently Asked Questions

What does the Kansas City Royals 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, Novig, 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 Kansas City Royals vs. Houston Astros (8:10 PM ET) odds?

The last available prices are Houston Astros: 99.5¢ on Kalshi, 75.5¢ on Polymarket, 98.0¢ on ProphetX, 58.5¢ on Polymarket US, 59.5¢ on Novig; Kansas City Royals: 0.5¢ on Kalshi, 20.5¢ on Polymarket, 4.8¢ on ProphetX, 41.0¢ on Polymarket US, 40.5¢ on Novig. 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 Kansas City Royals vs. Houston Astros (8:10 PM ET) odds vary across prediction markets?

The largest price difference shown across venues is 41.0 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 Kansas City Royals vs. Houston Astros (8:10 PM ET) prediction market payouts work?

For example, Houston Astros at 78.2¢ implies about a 78.2% 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.

Houston Astros Wins: Kansas City Royals vs. Houston Astros (8:10 PM ET)

Houston Astros Wins: Kansas City Royals vs. Houston Astros (8:10 PM ET)

About This Market

Price History

Final Closing Odds

Resolution Oracles

Frequently Asked Questions

Related Markets

Cezar Stefan Bentzel vs. Maxim Khorozov

Pro Football: 3500+ Passing Yards Season

Luca Connaughton vs. Reece Falck

Oregon State Beavers vs. Colorado State Rams

Related Markets

Cezar Stefan Bentzel vs. Maxim Khorozov

Pro Football: 3500+ Passing Yards Season

Luca Connaughton vs. Reece Falck

Oregon State Beavers vs. Colorado State Rams

Gabriela maria Vancea vs. Carmen Lopez Martinez

Houston Astros Wins: Kansas City Royals vs. Houston Astros (8:10 PM ET)

Houston Astros Wins: Kansas City Royals vs. Houston Astros (8:10 PM ET)

About This Market

Price History

Final Closing Odds

Resolution Oracles

Market Rulebook: Kansas City Royals vs. Houston Astros (8:10 PM ET)

Frequently Asked Questions

Related Markets

Cezar Stefan Bentzel vs. Maxim Khorozov

Pro Football: 3500+ Passing Yards Season

Luca Connaughton vs. Reece Falck

Oregon State Beavers vs. Colorado State Rams

Related Markets

Cezar Stefan Bentzel vs. Maxim Khorozov

Pro Football: 3500+ Passing Yards Season

Luca Connaughton vs. Reece Falck

Oregon State Beavers vs. Colorado State Rams

Gabriela maria Vancea vs. Carmen Lopez Martinez