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Live prediction market odds for Kansas City Royals vs. Boston Red Sox (1:35 PM ET). Compare prices across Kalshi and Polymarket US and Novig and Polymarket and ProphetX.

Browse historical results
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Kalshi

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Claim offerLegal in USAVerified Sep 14, 2026

MARKET RESOLVEDKalshi / Polymarket US / Novig / Polymarket / ProphetX

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Boston Red Sox Wins: Kansas City Royals vs. Boston Red Sox (1:35 PM ET)

MLB·Resolved 2026-09-13

This market resolved on 2026-09-13. Boston Red Sox was the officially declared outcome. Prior to resolution, the market peaked at 81%.

About This Market

Kansas City Royals vs.

Kansas City Royals vs. Boston Red Sox (1:35 PM ET): MLB game held on 2026-09-13. 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

5 platforms
Candidate
Kalshi
Polymarket US
Novig
Polymarket
ProphetX
Boston Red Sox spread plus 3.5
————99%
Jac Caglianone Under 0.5 Home Runs
————99%
Caleb Durbin Under 0.5 Home Runs
————99%
Total under 10.5
————99%
Michael Massey Under 0.5 Home Runs
————97%
Andruw Monasterio Under 0.5 Home Runs
————96%
Total under 9.5
————96%
Nick Loftin Under 0.5 Home Runs
————94%
Vinnie Pasquantino Under 0.5 Home Runs
————94%
Roman Anthony Under 0.5 Home Runs
————94%
Wilyer Abreu Under 0.5 Home Runs
————92%
Carter Jensen Under 0.5 Home Runs
————92%
Bobby Witt Jr. Under 0.5 Home Runs
————91%
Trevor Story Under 0.5 Home Runs
————91%
Total under 8.5
————91%
Boston Red Sox spread plus 1.5
———87%92%
Boston Red Sox spread plus 2.5
———81%92%
Kansas City Royals spread plus 3.5
————86%
Jahmai Jones Under 0.5 Home Runs
————85%
Salvador Perez Under 0.5 Home Runs
————85%
Total under 5.5
————82%
Total under 11.5
————82%
Total over 3.5
————75%
Boston Red Sox spread plus 1.0
————73%
Total under 6.5
——54%—91%
Vinnie Pasquantino Under 1.5 Hits + Runs + RBIs
————65%
Total under 7.5
——52%65%87%
Carter Jensen Under 1.5 Hits + Runs + RBIs
————64%
Boston Red SoxWINNER
99%61%64%100%81%
Michael Massey Over 0.5 Hits + Runs + RBIs
————64%
Nick Loftin Over 0.5 Hits + Runs + RBIs
————64%
Andruw Monasterio Under 1.5 Hits + Runs + RBIs
————63%
Boston Red Sox spread minus 1.5
——45%78%63%
Jarren Duran Under 1.5 Hits + Runs + RBIs
————62%
Jac Caglianone Under 1.5 Hits + Runs + RBIs
————62%
Payton Tolle Under 6.5 Strikeouts
————61%
Isaac Collins Over 0.5 Hits + Runs + RBIs
————61%
Salvador Perez Under 1.5 Hits + Runs + RBIs
————61%
Nate Eaton Over 0.5 Hits + Runs + RBIs
————60%
Noah Cameron Under 5.5 Strikeouts
————60%
Noah Cameron Over 4.5 Strikeouts
————60%
Boston Red Sox spread minus 1.0
————59%
Kyle Isbel Over 0.5 Hits + Runs + RBIs
————57%
Matthew Lugo Over 0.5 Hits + Runs + RBIs
————57%
Nick Sogard Under 1.5 Hits + Runs + RBIs
————57%
Nick Loftin Under 1.5 Hits + Runs + RBIs
————56%
Luke Maile Under 0.5 Hits + Runs + RBIs
————55%
Tyler Tolbert Over 0.5 Hits + Runs + RBIs
————55%
Jahmai Jones Under 1.5 Hits + Runs + RBIs
————55%
Luke Maile Over 0.5 Hits + Runs + RBIs
————54%
Roman Anthony Over 1.5 Hits + Runs + RBIs
————54%
Wilyer Abreu Over 1.5 Hits + Runs + RBIs
————54%
Adley Rutschman Under 1.5 Hits + Runs + RBIs
————53%
Bobby Witt Jr. Under 1.5 Hits + Runs + RBIs
————53%
Caleb Durbin Under 1.5 Hits + Runs + RBIs
————53%
Adley Rutschman Over 1.5 Hits + Runs + RBIs
————53%
Wilyer Abreu Under 1.5 Hits + Runs + RBIs
————53%
Bobby Witt Jr. Over 1.5 Hits + Runs + RBIs
————52%
Total over 4.5
————52%
Tyler Tolbert Under 0.5 Hits + Runs + RBIs
————52%
Total under 4.5
————52%
Trevor Story Under 1.5 Hits + Runs + RBIs
————52%
Boston Red Sox spread minus 2.5
———82%19%
Caleb Durbin Over 1.5 Hits + Runs + RBIs
————50%
Kyle Isbel Under 0.5 Hits + Runs + RBIs
————50%
Kansas City Royals spread plus 1.0
————49%
Trevor Story Over 1.5 Hits + Runs + RBIs
————49%
Jarren Duran Over 1.5 Hits + Runs + RBIs
————48%
Salvador Perez Over 1.5 Hits + Runs + RBIs
————47%
Jahmai Jones Over 1.5 Hits + Runs + RBIs
————47%
Roman Anthony Under 1.5 Hits + Runs + RBIs
————47%
Jac Caglianone Over 1.5 Hits + Runs + RBIs
————47%
Kansas City Royals spread plus 2.5
———18%75%
Matthew Lugo Under 0.5 Hits + Runs + RBIs
————46%
Payton Tolle Over 6.5 Strikeouts
————46%
Andruw Monasterio Over 1.5 Hits + Runs + RBIs
————46%
Nick Loftin Over 1.5 Hits + Runs + RBIs
————46%
Noah Cameron Under 4.5 Strikeouts
————45%
Nick Loftin Under 0.5 Hits + Runs + RBIs
————45%
Carter Jensen Over 1.5 Hits + Runs + RBIs
————44%
Nick Sogard Over 1.5 Hits + Runs + RBIs
————44%
Vinnie Pasquantino Over 1.5 Hits + Runs + RBIs
————43%
Nate Eaton Under 0.5 Hits + Runs + RBIs
————42%
Kansas City Royals spread plus 1.5
——55%22%41%
Noah Cameron Over 5.5 Strikeouts
————41%
Total over 6.5
——47%—29%
Michael Massey Under 0.5 Hits + Runs + RBIs
————37%
Kansas City Royals
1%39%36%0%12%
Total over 7.5
——49%35%22%
Kansas City Royals spread minus 1.0
————34%
Total under 3.5
————29%
Total over 11.5
————23%
Willson Contreras Over 0.5 Home Runs
————23%
Bobby Witt Jr. Over 0.5 Home Runs
————21%
Total over 5.5
————20%
Salvador Perez Over 0.5 Home Runs
————19%
Total over 8.5
————18%
Jahmai Jones Over 0.5 Home Runs
————18%
Roman Anthony Over 0.5 Home Runs
————17%
Jac Caglianone Over 0.5 Home Runs
————17%
Kansas City Royals spread minus 2.5
———19%13%
Wilyer Abreu Over 0.5 Home Runs
————15%
Kansas City Royals spread minus 1.5
———13%17%
Carter Jensen Over 0.5 Home Runs
————15%
Boston Red Sox spread minus 3.5
————14%
Trevor Story Over 0.5 Home Runs
————14%
Total over 9.5
————13%
Vinnie Pasquantino Over 0.5 Home Runs
————13%
Michael Massey Over 0.5 Home Runs
————11%
Andruw Monasterio Over 0.5 Home Runs
————11%
Nick Loftin Over 0.5 Home Runs
————11%
Total over 10.5
————11%
Nate Eaton Over 0.5 Home Runs
————11%
Kansas City Royals spread minus 3.5
————11%
Caleb Durbin Over 0.5 Home Runs
————9%
Nick Sogard Over 0.5 Home Runs
————9%
Tyler Tolbert Over 0.5 Home Runs
————8%

Resolution Oracles

KalshiKalshi
Kalshi Rules
PolymarketPolymarket
UMA Optimistic OracleConsensus of Sources
ProphetXProphetX
ProphetX Rules
Read Full Market Rulebooks
Stats
Spread39.4%
Platforms5
Candidates2
Winner

Boston Red Sox

80.9% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Kansas City Royals vs. Boston Red Sox (1:35 PM ET)

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

KalshiKalshi
Primary Rule

If Kansas City wins the Kansas City vs Boston professional baseball game originally scheduled for Sep 13, 2026 at 1:35 PM EDT, then the market resolves to Yes.

Edge Cases

The following market refers to the Kansas City vs Boston professional baseball game originally scheduled for Sep 13, 2026 at 1:35 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
NovigNovig
Primary Rule

Kansas City Royals in Kansas City Royals @ Boston Red Sox (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.

PolymarketPolymarket
Primary Rule

In the upcoming MLB game between the Kansas City Royals and Boston Red Sox, scheduled for September 13 at 1:35PM ET: This market will resolve to "Kansas City Royals" if the Kansas City Royals win the game. This market will resolve to "Boston Red Sox" if the Boston Red Sox 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 Kansas City Royals vs Boston Red Sox MLB game scheduled for 2026-09-13 at 1:35PM 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 Kansas City Royals vs. Boston Red Sox (1:35 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. Boston Red Sox (1:35 PM ET) odds?

The last available prices are Boston Red Sox: 99.0¢ on Kalshi, 99.9¢ on Polymarket, 80.9¢ on ProphetX, 60.5¢ on Polymarket US, 64.0¢ on Novig; Kansas City Royals: 0.5¢ on Kalshi, 0.1¢ on Polymarket, 12.4¢ on ProphetX, 39.0¢ on Polymarket US, 36.0¢ 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. Boston Red Sox (1:35 PM ET) odds vary across prediction markets?

The largest price difference shown across venues is 39.4 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. Boston Red Sox (1:35 PM ET) prediction market payouts work?

For example, Boston Red Sox at 80.9¢ implies about a 80.9% 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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