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Seattle Mariners vs. Baltimore Orioles (7:00 PM ET) — MLB game scheduled for 2026-06-11. Compare live prediction market odds from Kalshi, Polymarket, and more on Prediction Hunt.

Seattle Mariners spread plus 3.5 leads the “Seattle Mariners vs. Baltimore Orioles (7:00 PM ET)” event at 88.0% implied probability. Other contenders include Baltimore Orioles spread plus 4.5 (85.5%), Total under 11.5 (84.5%), Seattle Mariners spread plus 2.5 (82.5%), and Total under 10.5 (79.5%). A 58.0% cross-platform spread signals an active arbitrage window.

Price History

Multi-Platform Probabilities

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Live Markets

3 platforms

Seattle MarinersARB

39% Avg

100¢

60¢

7¢

Platform	Implied %	Yes — Bid / Ask		No — Bid / Ask
Kalshi	50.0%	0¢	100¢	0¢	100¢
Polymarket	59.5%	59¢	60¢	40¢	41¢
ProphetX	7.0%	7¢	7¢	98¢	98¢

Baltimore OriolesARB

63% Avg

100¢

41¢

98¢

Platform	Implied %	Yes — Bid / Ask		No — Bid / Ask
Kalshi	50.0%	0¢	100¢	0¢	100¢
Polymarket	40.5%	40¢	41¢	59¢	60¢
ProphetX	98.0%	98¢	98¢	7¢	7¢

Baltimore Orioles spread plus 1.5

56% Avg

57¢

Platform	Implied %	Yes — Bid / Ask		No — Bid / Ask
Polymarket	56.0%	55¢	57¢	43¢	45¢

Seattle Mariners spread plus 1.5

76% Avg

77¢

Platform	Implied %	Yes — Bid / Ask		No — Bid / Ask
Polymarket	76.0%	75¢	77¢	23¢	25¢

Total over 7.5

48% Avg

49¢

Platform	Implied %	Yes — Bid / Ask		No — Bid / Ask
Polymarket	48.0%	47¢	49¢	51¢	53¢

Total under 7.5

52% Avg

53¢

Platform	Implied %	Yes — Bid / Ask		No — Bid / Ask
Polymarket	52.0%	51¢	53¢	47¢	49¢

Frequently Asked Questions

What is "Seattle Mariners vs. Baltimore Orioles (7:00 PM ET)" and why does it matter?

Seattle Mariners vs. Baltimore Orioles (7:00 PM ET) is a prediction market event currently tracked across 3 platforms (Kalshi, Polymarket, ProphetX). Seattle Mariners spread plus 3.5 leads at 88% implied probability, making it the market favorite. Other contenders include Baltimore Orioles spread plus 4.5 at 86%, Total under 11.5 at 85%, Seattle Mariners spread plus 2.5 at 83%.

What is moving the odds on "Seattle Mariners vs. Baltimore Orioles (7:00 PM ET)"?

Seattle Mariners spread plus 3.5 currently leads at 88% implied probability. Behind Seattle Mariners spread plus 3.5, Baltimore Orioles spread plus 4.5 at 86% and Total under 11.5 at 85% and Seattle Mariners spread plus 2.5 at 83% are the next closest contenders. The 58.0% cross-platform spread suggested platforms were pricing new information differently, creating potential trading opportunities.

What are the current odds for "Seattle Mariners vs. Baltimore Orioles (7:00 PM ET)" across platforms?

Here are the latest odds across Kalshi, Polymarket, ProphetX: Seattle Mariners spread plus 3.5: 88¢ on Polymarket. Baltimore Orioles spread plus 4.5: 86¢ on Polymarket. Total under 11.5: 85¢ on Polymarket. Seattle Mariners spread plus 2.5: 83¢ on Polymarket. The 58.0% spread across platforms highlights where markets disagree — a gap traders can exploit by buying low on one platform and selling high on another.

What does it mean that Seattle Mariners spread plus 3.5 is at 88%?

A price of 88¢ means the market estimates a 88% probability that Seattle Mariners spread plus 3.5 will be the outcome. Buying one share at 88¢ pays out $1.00 if correct — a 14% return — or $0 if wrong. This is the core mechanic of prediction markets: the price directly reflects the crowd's probability estimate.

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Seattle Mariners vs. Baltimore Orioles

BUYBaltimore Orioles@ 93¢$1.1M PnL

Payout$571

Stake$531.43

1d ago

Seattle Mariners vs. Baltimore Orioles

BUYBaltimore Orioles@ 91¢$9.5M PnL

Payout$721

Stake$655.75

1d ago

Seattle Mariners vs. Baltimore Orioles

BUYBaltimore Orioles@ 92¢$9.5M PnL

Payout$975

Stake$897.31

1d ago

Seattle Mariners vs. Baltimore Orioles

BUYBaltimore Orioles@ 86¢$9.5M PnL

Payout$800

Stake$688.00

1d ago

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Market Rulebook: Seattle Mariners vs. Baltimore Orioles (7:00 PM ET)

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

Rules for Candidate:

Kalshi

Primary Rule

If Seattle wins the Seattle vs Baltimore professional baseball game originally scheduled for Jun 11, 2026 at 7:05 PM EDT, then the market resolves to Yes.

Edge Cases

The following market refers to the Seattle vs Baltimore professional baseball game originally scheduled for Jun 11, 2026 at 7:05 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.

Resolution Oracles

Kalshi Rules

Polymarket

Primary Rule

In the upcoming MLB game between the Seattle Mariners and Baltimore Orioles, scheduled for June 11 at 7:05PM ET: This market will resolve to "Seattle Mariners" if the Seattle Mariners win the game. This market will resolve to "Baltimore Orioles" if the Baltimore Orioles 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

ProphetX

Primary Rule

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

Resolution Oracles

ProphetX Rules