The following market refers to the Seattle vs A's professional baseball game originally scheduled for Sep 13, 2026 at 4:05 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

Athletics in Seattle Mariners @ Oakland Athletics (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 Seattle Mariners and Athletics, scheduled for September 13 at 4:05PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Athletics" if the Athletics 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 Seattle Mariners vs Athletics MLB game scheduled for 2026-09-13 at 4:05PM 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 Seattle Mariners vs. Athletics (4:05 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.

What are the latest Seattle Mariners vs. Athletics (4:05 PM ET) odds?

The latest available prices are Seattle Mariners: 0.5¢ on Kalshi, 2.0¢ on Polymarket, 82.4¢ on ProphetX, 56.5¢ on Polymarket US, 55.5¢ on Novig; Athletics: 99.5¢ on Kalshi, 98.0¢ on Polymarket, 20.3¢ on ProphetX, 43.5¢ on Polymarket US, 44.5¢ on Novig. Prices are quoted in cents per $1 share. Check the venue for executable prices and available liquidity.

Why do Seattle Mariners vs. Athletics (4:05 PM ET) odds vary across prediction markets?

The largest price difference shown across venues is 81.9 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 Seattle Mariners vs. Athletics (4:05 PM ET) prediction market payouts work?

For example, Seattle Mariners at 39.4¢ implies about a 39.4% 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.

Seattle Mariners vs. Athletics (4:05 PM ET)

Seattle Mariners vs. Athletics (4:05 PM ET)

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Seattle Mariners vs. Athletics (4:05 PM ET)

Seattle Mariners vs. Athletics (4:05 PM ET)

About This Market

Price History

Live Markets

Moneyline

Smart Trade Router

Resolution Oracles

Market Rulebook: Seattle Mariners vs. Athletics (4:05 PM ET)

Frequently Asked Questions

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