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Live prediction market odds for Athletics vs. Kansas City Royals (7:40 PM ET). Compare prices across Kalshi and Polymarket US and Polymarket and ProphetX.

Browse historical results
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MARKET RESOLVEDKalshi / Polymarket US / Polymarket / ProphetX

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Kansas City Royals Wins: Athletics vs. Kansas City Royals (7:40 PM ET)

MLB·Resolved 2026-08-18

This market resolved on 2026-08-18. Kansas City Royals was the officially declared outcome. Prior to resolution, the market peaked at 88%.

About This Market

Athletics vs.

Athletics vs. Kansas City Royals (7:40 PM ET) — MLB game held on 2026-08-18. 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
Lawrence Butler Under 1.5 Home Runs
——100%—
Jacob Wilson Under 0.5 Home Runs
———99%
Alika Williams Under 0.5 Home Runs
———99%
Bobby Witt Jr. Over 0.5 Hits + Runs + RBIs
99%———
Bobby Witt Jr. Over 1.5 Hits + Runs + RBIs
99%———
Darell Hernaiz Under 0.5 Home Runs
———99%
Henry Bolte Under 0.5 Home Runs
———99%
Jeff McNeil Under 0.5 Home Runs
———99%
Maikel Garcia Under 0.5 Home Runs
———99%
Michael Massey Under 0.5 Home Runs
———99%
Tommy White Under 0.5 Home Runs
———99%
Vinnie Pasquantino Over 0.5 Hits + Runs + RBIs
99%———
Vinnie Pasquantino Over 2.5 Hits + Runs + RBIs
99%———
Carter Jensen Under 0.5 Home Runs
———99%
Kyle Isbel Under 0.5 Home Runs
———99%
Nick Loftin Under 0.5 Home Runs
———99%
Salvador Perez Under 0.5 Home Runs
———99%
Vinnie Pasquantino Under 0.5 Home Runs
———99%
Zack Gelof Under 0.5 Home Runs
———99%
Total under 13.5
———99%
Bobby Witt Jr. Under 0.5 Home Runs
———97%
Athletics spread plus 1.5
——98%95%
Brian Serven Under 0.5 Home Runs
———96%
Isaac Collins Under 0.5 Home Runs
———95%
Jac Caglianone Under 0.5 Home Runs
———95%
Total under 9.5
——100%95%
Athletics spread plus 2.5
——100%93%
Kansas City Royals spread plus 4.5
———91%
Jonah Heim Under 0.5 Home Runs
——0%91%
Jack Perkins Over 1.5 Strikeouts
90%———
Athletics spread plus 3.5
———88%
Athletics spread minus 1.5
1%—100%87%
Kansas City Royals spread plus 2.5
——100%85%
Athletics spread plus 4.5
———85%
Kansas City Royals spread plus 3.5
———82%
Athletics spread minus 1.0
———80%
Total under 8.5
———79%
Total under 12.5
———77%
Jack Perkins Over 2.5 Strikeouts
77%———
Jacob Wilson Over 0.5 Hits + Runs + RBIs
76%———
Alika Williams Under 0.5 Hits + Runs + RBIs
———75%
Carter Jensen Under 1.5 Hits + Runs + RBIs
———73%
Kansas City RoyalsWINNER
99%77%100%66%
Total under 11.5
——0%71%
Total under 10.5
——0%70%
Kyle Isbel Under 1.5 Hits + Runs + RBIs
———67%
Darell Hernaiz Under 0.5 Hits + Runs + RBIs
———66%
Darell Hernaiz Under 1.5 Hits + Runs + RBIs
———66%
Lawrence Butler Under 1.5 Hits + Runs + RBIs
———66%
Vinnie Pasquantino Under 1.5 Hits + Runs + RBIs
———66%
Henry Bolte Under 2.5 Hits + Runs + RBIs
———64%
Brian Serven Under 1.5 Hits + Runs + RBIs
———63%
Jac Caglianone Under 1.5 Hits + Runs + RBIs
———63%
Salvador Perez Under 1.5 Hits + Runs + RBIs
———63%
Max Muncy Under 1.5 Hits + Runs + RBIs
———63%
Tommy White Over 1.5 Hits + Runs + RBIs
———62%
Jac Caglianone Under 2.5 Hits + Runs + RBIs
———61%
Total under 10.0
———61%
Bobby Witt Jr. Under 2.5 Hits + Runs + RBIs
———60%
Henry Bolte Under 1.5 Hits + Runs + RBIs
———60%
Isaac Collins Under 1.5 Hits + Runs + RBIs
———60%
Jacob Wilson Over 1.5 Hits + Runs + RBIs
0%——60%
Total under 6.5
———60%
Jack Perkins Over 3.5 Strikeouts
59%——60%
Total under 5.5
———60%
Maikel Garcia Under 1.5 Hits + Runs + RBIs
———59%
Total over 4.5
99%——59%
Zack Gelof Under 1.5 Hits + Runs + RBIs
———59%
Nick Loftin Under 1.5 Hits + Runs + RBIs
———58%
Jonah Heim Under 1.5 Hits + Runs + RBIs
———57%
Athletics spread plus 1.0
———57%
Jeff McNeil Over 1.5 Hits + Runs + RBIs
———56%
Michael Massey Over 1.5 Hits + Runs + RBIs
———56%
Total under 9.0
———56%
Henry Bolte Over 2.5 Hits + Runs + RBIs
———55%
Jeff McNeil Under 1.5 Hits + Runs + RBIs
———55%
Jonah Heim Over 1.5 Hits + Runs + RBIs
———54%
Maikel Garcia Over 1.5 Hits + Runs + RBIs
———53%
Michael Massey Under 1.5 Hits + Runs + RBIs
———53%
Total over 7.5
1%——52%
Total under 7.5
———52%
Zack Gelof Over 1.5 Hits + Runs + RBIs
———52%
Henry Bolte Over 1.5 Hits + Runs + RBIs
———50%
Nick Loftin Over 1.5 Hits + Runs + RBIs
———50%
Isaac Collins Over 1.5 Hits + Runs + RBIs
———50%
Jacob Wilson Under 1.5 Hits + Runs + RBIs
———50%
Tommy White Under 1.5 Hits + Runs + RBIs
———50%
Total over 9.0
———49%
Max Muncy Over 1.5 Hits + Runs + RBIs
———48%
Jac Caglianone Over 1.5 Hits + Runs + RBIs
———48%
Kansas City Royals spread minus 1.0
———48%
Vinnie Pasquantino Over 1.5 Hits + Runs + RBIs
99%——48%
Darell Hernaiz Over 0.5 Hits + Runs + RBIs
———46%
Total under 4.5
———45%
Total over 5.5
99%——45%
Salvador Perez Over 1.5 Hits + Runs + RBIs
———45%
Total over 6.5
99%——44%
Jac Caglianone Over 2.5 Hits + Runs + RBIs
———44%
Brian Serven Over 1.5 Hits + Runs + RBIs
———44%
Darell Hernaiz Over 1.5 Hits + Runs + RBIs
———44%
Lawrence Butler Over 1.5 Hits + Runs + RBIs
———44%
Jack Perkins Under 3.5 Strikeouts
———43%
Total over 10.0
———41%
Jack Perkins Over 4.5 Strikeouts
38%———
Carter Jensen Over 1.5 Hits + Runs + RBIs
———38%
Kyle Isbel Over 1.5 Hits + Runs + RBIs
———35%
Total over 10.5
1%—0%35%
Jacob Wilson Over 2.5 Hits + Runs + RBIs
34%———
Alika Williams Over 0.5 Hits + Runs + RBIs
———33%
Total over 11.5
1%—0%33%
Athletics
1%24%100%38%
Bobby Witt Jr. Over 2.5 Hits + Runs + RBIs
2%——51%
Total over 12.5
1%——26%
Kansas City Royals spread plus 1.0
———25%
Kansas City Royals spread plus 1.5
——100%25%
Kansas City wins by over 3.5 runs
1%——25%
Total over 8.5
1%——25%
A's wins by over 3.5 runs
1%——23%
Jack Perkins Over 5.5 Strikeouts
22%———
Kansas City Royals spread minus 4.5
———20%
Athletics spread minus 2.5
1%—100%19%
Jacob Wilson Over 3.5 Hits + Runs + RBIs
19%———
Total over 13.5
3%——32%
Jonah Heim Over 0.5 Home Runs
———17%
Athletics spread minus 4.5
———14%
Jac Caglianone Over 0.5 Home Runs
———12%
Isaac Collins Over 0.5 Home Runs
———12%
Kansas City Royals spread minus 2.5
1%—100%11%
Jack Perkins Over 6.5 Strikeouts
11%———
Lawrence Butler Under 0.5 Home Runs
——11%99%
Total over 9.5
1%—100%11%
Kyle Isbel Over 0.5 Home Runs
———10%
Brian Serven Over 0.5 Home Runs
———10%
Bobby Witt Jr. Over 0.5 Home Runs
5%——13%
Tommy White Over 0.5 Home Runs
———9%
Jacob Wilson Over 0.5 Home Runs
7%——10%
Lawrence Butler Over 0.5 Home Runs
——11%6%
Vinnie Pasquantino Over 0.5 Home Runs
1%——8%
Zack Gelof Over 0.5 Home Runs
———8%
Nick Loftin Over 0.5 Home Runs
———7%
Salvador Perez Over 0.5 Home Runs
———7%
Alika Williams Over 0.5 Home Runs
———6%
Carter Jensen Over 0.5 Home Runs
———6%
Jeff McNeil Over 0.5 Home Runs
———6%
Henry Bolte Over 0.5 Home Runs
———6%
Kansas City Royals spread minus 1.5
1%—2%10%
Michael Massey Over 0.5 Home Runs
———6%
Darell Hernaiz Over 0.5 Home Runs
———5%
Maikel Garcia Over 0.5 Home Runs
———4%
Bobby Witt Jr. Over 1.5 Home Runs
2%———
Bobby Witt Jr. Over 3.5 Hits + Runs + RBIs
2%———
Bobby Witt Jr. Over 4.5 Hits + Runs + RBIs
2%———
Vinnie Pasquantino Over 3.5 Hits + Runs + RBIs
2%———
Jacob Wilson Over 1.5 Home Runs
1%———
Jonah Heim Over 1.5 Home Runs
——1%—
Jonah Heim Under 1.5 Home Runs
——1%—
Over 14.5 runs scored
1%———
Vinnie Pasquantino Over 1.5 Home Runs
1%———
Vinnie Pasquantino Over 4.5 Hits + Runs + RBIs
1%———
Lawrence Butler Over 1.5 Home Runs
——0%—
Jacob Wilson Over 4.5 Hits + Runs + RBIs
0%———

Resolution Oracles

KalshiKalshi
Kalshi Rules
PolymarketPolymarket
UMA Optimistic OracleConsensus of Sources
ProphetXProphetX
ProphetX Rules
Read Full Market Rulebooks
Stats
Spread98.9%
Platforms4
Candidates2
Winner

Kansas City Royals

85.3% avg

Market RulebooksOfficial settlement criteria and edge cases

Market Rulebook: Athletics vs. Kansas City Royals (7:40 PM ET)

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

KalshiKalshi
Primary Rule

If Kansas City wins the A's vs Kansas City professional baseball game originally scheduled for Aug 18, 2026 at 7:40 PM EDT, then the market resolves to Yes.

Edge Cases

The following market refers to the A's vs Kansas City professional baseball game originally scheduled for Aug 18, 2026 at 7:40 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 Kansas City Royals, scheduled for August 18 at 7:40PM ET: This market will resolve to "Athletics" if the Athletics win the game. This market will resolve to "Kansas City Royals" if the Kansas City Royals 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 Kansas City Royals MLB game scheduled for 2026-08-18 at 7:40PM 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. Kansas City Royals (7:40 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. Kansas City Royals (7:40 PM ET) odds?

The last available prices are Kansas City Royals: 99.0¢ on Kalshi, 99.9¢ on Polymarket, 66.0¢ on ProphetX, 76.5¢ on Polymarket US; Athletics: 1.0¢ on Kalshi, 99.9¢ on Polymarket, 37.5¢ on ProphetX, 23.5¢ 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. Kansas City Royals (7:40 PM ET) odds vary across prediction markets?

The largest price difference shown across venues is 98.9 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. Kansas City Royals (7:40 PM ET) prediction market payouts work?

For example, Kansas City Royals at 85.3¢ implies about a 85.3% 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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