Seattle Mariners vs. Houston Astros
11 signals across 2 markets · $41,626 tracked · resolves May 21, 2026
Seattle Mariners vs. Houston Astros is an MLB prediction market covering which team will win their May 14 matchup. PolySpotter tracks the Polymarket odds alongside smart money activity, including a recent sharp MLB whale signal across the event.
Markets (2)
Top trades across all markets
- 98% win-rate sports sharp
A highly profitable serial sports bettor with a 98% resolved win rate bought Houston at even odds, making the wallet track record the main signal despite the market being liquid.
$1,885Wallet win rate: 98%Score: 8.0 - 98% winner buying underdog
A highly proven bettor with a 98% win rate and $401k lifetime profit bought Houston at 25¢ despite the market favoring Seattle.
$1,444Wallet win rate: 98%Score: 8.0 - Serial winner buying Over
Experienced cross-market bettor with a large positive track record bought Over after a major pre-game volume spike and strong upward price move.
$5,900Wallet win rate: 67%Score: 7.2 - Profitable last-minute sports timer
Serial near-start sports bettor with $452k lifetime profit bought Under 9.5 at 57¢ moments before the Mariners-Astros market cutoff.
$4,905Wallet win rate: 49%Score: 7.1 - 90% winner riding steam
Sharp MLB bettor with a 90% resolved track record bought Seattle amid a major 1-day price move, suggesting momentum-backed conviction.
$1,100Wallet win rate: 94%Score: 6.6 - Profitable serial sports sharp
A highly profitable serial sports trader bought Under before a major pre-event volume spike and the position has already moved from 35¢ to 42¢.
$2,770Wallet win rate: 66%Score: 6.5 - Profitable serial sports bettor
Profitable high-volume wallet bought Under at 35¢ ahead of a sharp pre-game volume spike, and the market has already moved to 42¢.
$1,434Wallet win rate: 61%Score: 6.5 - New sharp sports wallet
A 5-day-old repeat bettor with a perfect early record and +$24k P&L is buying Seattle in a liquid MLB market.
$2,591Wallet win rate: 89%Score: 6.0 - 84% winner buys Over
Sharp serial cross-market bettor with an 84% resolved win rate and nearly $100k profit is buying Over 9.5 in the Mariners-Astros game.
$2,000Wallet win rate: 92%Score: 6.0 - Profitable serial sports trader
A profitable serial sports trader with a large 700-bet history sold Seattle after a major price run-up, implying a contrarian lean toward Houston despite market momentum.
$1,482Wallet win rate: 61%Score: 2.0
Top wallets in this event
- 0x16bb99…8492$16,115 · 1 market · 1 alert · 94% wins
- 0xae0f21…f647$5,900 · 1 market · 1 alert · 67% wins
- 0x6ade59…f5b0$4,905 · 1 market · 1 alert · 49% wins
- 0xc33a10…3da3$3,329 · 1 market · 2 alerts · 98% wins
- 0x32ed51…f960$2,770 · 1 market · 1 alert · 66% wins
- 0xdfa63f…6c6c$2,591 · 1 market · 1 alert · 89% wins
- 0x6157d5…9fb4$2,000 · 1 market · 1 alert · 92% wins
- 0x5d5ebe…7004$1,482 · 1 market · 1 alert · 61% wins
- 0xbca08c…9705$1,434 · 1 market · 1 alert · 61% wins
- 0xd181c8…5136$1,100 · 1 market · 1 alert · 94% wins
FAQs
What are the Mariners vs Astros prediction market odds?
The odds reflect how Polymarket traders are pricing the chance that either the Seattle Mariners or Houston Astros win the game. Because prediction-market prices move as traders buy and sell, the live odds can change quickly before and during the matchup.
What outcomes are traded in this event?
This event covers the game winner: Seattle Mariners or Houston Astros. The market resolves based on the official game result, with special handling if the game is postponed, canceled without a makeup, or ends in a tie.
Is smart money betting on Mariners vs Astros?
PolySpotter is tracking $16,115 in smart money activity across this event, with one recent signal flagged as a sharp MLB whale. That suggests at least one notable trader or wallet has taken a position in the market.
When does the Mariners vs Astros market resolve?
The market is tied to the May 14 MLB game and is expected to resolve after the game is completed. If the game is postponed, the market remains open until it is played; if it is canceled entirely with no makeup or ends in a tie, it resolves 50-50.
Where can I track Mariners vs Astros Polymarket activity?
You can use this PolySpotter event page to monitor Mariners vs Astros prediction-market odds, smart money signals, and notable wallet activity in one place.