Houston Astros vs Seattle Mariners: Best Odds Across Every Prediction Market

Best price on each side

Houston Astros vs Seattle Mariners odds by platform

American odds shown. Best payout on each side highlighted. Prices update live.

Kalshi vs Polymarket: Houston Astros vs Seattle Mariners

Kalshi and Polymarket frequently price the same game differently, and neither is consistently sharper. The table above shows where each side is cheapest right now. On OpenMarkets you can see all venues at once, including ProphetX, BettorEdge, BetOpenly, SX Bet and more, and route to the best number instead of guessing which platform leads on a given market.

How to read these odds

Each price reflects the implied probability of an outcome. A lower price (further from even) means a higher payout if that side wins. Because Kalshi, Polymarket, ProphetX, BettorEdge, BetOpenly, SX Bet and more are independent markets, the same outcome can carry different prices at the same moment. Comparing them and taking the best available number is line shopping, and over many bets that edge compounds.

FAQ

What are the best odds for Houston Astros?

The best available price on Houston Astros is +131 at ProphetX (43% implied probability), compared across Kalshi, Polymarket, ProphetX, BettorEdge, BetOpenly, SX Bet and more.

What are the best odds for Seattle Mariners?

The best available price on Seattle Mariners is -134 at BetOpenly (57% implied probability).

Who is favored in Houston Astros vs Seattle Mariners?

Seattle Mariners is the favorite, with a best price of -134 at BetOpenly. Prices differ across platforms, so the best payout depends on which book you use.

Where can I get the best payout on Houston Astros vs Seattle Mariners?

OpenMarkets compares Kalshi, Polymarket, ProphetX, BettorEdge, BetOpenly, SX Bet and more in one view and marks the best price on each side, so you take the highest payout available.

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