Boston Red Sox vs. Seattle Mariners
20 signals across 3 markets · $196,679 tracked · resolves Jun 27, 2026
Boston Red Sox vs. Seattle Mariners is an MLB prediction market for the June 19 game, with traders pricing which team will win. PolySpotter is tracking $7,171 in smart money across the event, including a recent signal from an elite MLB sharp buyer.

Markets (3)
Top trades across all markets
- Profitable sports whale
Highly profitable high-volume sports wallet is taking a net Seattle +3.5 position amid a sharp pre-game price move and volume spike.
$16,612Wallet win rate: 53%Score: 10.4 - Profitable underdog cluster
A 3-wallet cluster put $9.7K on Seattle, led by two profitable serial sports bettors with strong historical records and supported by a 17x pre-event volume spike.
$9,742Score: 10.3 - Profitable sharps aligned
Three profitable, high-volume sports traders bought Boston together before a 33-point daily move, with a volume spike and one-sided cluster supporting the signal.
$13,884Score: 10.3 - Elite MLB sharp buyer
Elite profitable sports bettor with an 88% win rate and $3.3M lifetime profit bought $7.2K of Boston at 46¢.
$7,171Wallet win rate: 88%Score: 9.0 - 92% win-rate sports sharp
Elite sports bettor with a 92% long-term win rate and $311k profit bought Boston at 46¢, making the wallet track record the core signal despite modest trade size.
$1,840Wallet win rate: 92%Score: 8.0 - Sharp MLB bettor
Sharp sports bettor with a 77% win rate and strong positive P&L is buying Under 6.5 at 48¢.
$2,621Wallet win rate: 77%Score: 8.0 - Elite 87% sports bettor
Sharp sports bettor with an 87% win rate and +$215,947 lifetime P&L bought Boston at 57¢ despite a liquid market.
$1,049Wallet win rate: 88%Score: 8.0 - 99% win-rate sports sharp
Surfaced because this is a proven sharp sports bettor with a 99% historical win rate and large lifetime profit buying Seattle at near-even odds.
$1,086Wallet win rate: 99%Score: 8.0 - Profitable serial sports bettor
A highly active profitable cross-market bettor bought $10.3K of Boston at 68¢ before a major move to 86¢, alongside a volume spike and price impact.
$10,308Wallet win rate: 70%Score: 7.3 - 92% sharp backs Boston
A highly profitable sharp bettor with a 92% historical win rate bought $4.5k of Boston at 48¢ amid a major pre-game volume spike.
$4,476Wallet win rate: 92%Score: 6.4
Top wallets in this event
- 0x8b887c…8f33$85,214 · 1 market · 3 alerts · 99% wins
- 0x526852…135d$31,201 · 2 markets · 3 alerts · 53% wins
- 0x558f2f…1a56$10,308 · 1 market · 1 alert · 70% wins
- 0x27f738…44b0$7,171 · 1 market · 1 alert · 88% wins
- 0x9a4cf0…1f30$7,050 · 1 market · 1 alert · 51% wins
- 0xfe787d…0319$6,621 · 1 market · 1 alert · 64% wins
- 0x6db568…e279$5,762 · 1 market · 1 alert · 52% wins
- 0xafac39…8730$4,500 · 1 market · 1 alert · 74% wins
- 0x587767…d894$4,476 · 1 market · 1 alert · 92% wins
- 0x3d979f…f263$4,153 · 1 market · 1 alert · 70% wins
FAQs
What are the Red Sox vs Mariners prediction market odds?
The market prices the probability of either the Boston Red Sox or Seattle Mariners winning the game. Odds can move as traders react to lineups, pitching news, injuries, and betting activity.
What is the smart money doing on Red Sox vs Mariners?
PolySpotter has tracked $7,171 in smart money on this event, with one recent alert highlighting an elite MLB sharp buyer. That signal suggests a respected trader has taken a position in the matchup.
How does this Red Sox vs Mariners Polymarket resolve?
The market resolves to Boston Red Sox if Boston wins and to Seattle Mariners if Seattle wins. If the game is postponed, the market stays open until it is completed; if it is canceled with no makeup or ends in a tie, it resolves 50-50.
When is Red Sox vs Mariners scheduled?
The game is scheduled for June 19 at 10:10 PM ET, with the market expected to resolve after the official game result is known.