Seattle Mariners vs. Washington Nationals
13 signals across 2 markets · $291,622 tracked · resolves Jun 21, 2026
This event tracks Polymarket betting for the Seattle Mariners vs. Washington Nationals MLB game, with the active child market focused on the total runs line at O/U 10.5. PolySpotter has tracked $2,000 in smart money activity, including a notable signal that a 96% winner has been buying the Under.
Markets (2)
Top trades across all markets
- 95% winner leads MLB cluster
Four wallets bought $26K of Mariners, led by a 95% winner up $412K and reinforced by other profitable sports bettors plus a major volume spike.
$26,210Score: 15.4 - Five-wallet Mariners push
High-score coordinated Mariners flow with a 173x volume spike and five wallets taking the same side, though there is some opposing Nationals flow and one sharp wallet appears to be exiting a prior position.
$16,929Score: 13.1 - Elite bettor hammering Under
Elite profitable sports wallet with an 85% track record and $4.8M lifetime profit bought $65.6K of Under at 52¢ before the game.
$65,587Wallet win rate: 47%Score: 12.8 - Profitable MLB sharp cluster
Highly profitable serial sports trader bought Washington alongside one-sided cluster flow and a major pre-game volume spike, with the price already moving sharply in their favor.
$1,570Wallet win rate: 67%Score: 10.2 - Profitable MLB cluster
Three wallets, including a highly profitable sports trader and a 92% winner, bought Washington together into a major pre-game volume spike and immediate price move.
$7,809Score: 9.4 - Profitable wallet led Nats surge
Strong one-sided Nationals flow with a huge pre-game volume spike, led by a high-volume profitable wallet that got in well before the market moved from 32¢ to 52¢.
$3,555Wallet win rate: 54%Score: 8.2 - 94% winner buying Under
A highly profitable sports bettor with a 94% win rate and $1.56M lifetime profit bought $11.3K of Under at 52¢.
$11,297Wallet win rate: 94%Score: 8.0 - Sharp MLB totals bettor
Sharp MLB bettor with an 81% resolved win record bought Over amid a major pre-game volume spike.
$1,200Wallet win rate: 63%Score: 5.7 - Profitable serial sports trader
A highly profitable serial sports trader bought Washington at 75¢ before the market surged to 94¢, with price-impact confirmation.
$2,449Wallet win rate: 56%Score: 5.0 - Elite bettor hammering Under
Elite profitable sports wallet with an 85% track record and $4.8M lifetime profit bought $65.6K of Under at 52¢ before the game.
$146,764Wallet win rate: 47%Score: 4.7
Top wallets in this event
- 0x4bff30…fc26$212,351 · 1 market · 2 alerts · 47% wins
- 0x16bb99…8492$11,297 · 1 market · 1 alert · 94% wins
- 0xda4838…5926$4,800 · 1 market · 1 alert · 68% wins
- 0x526852…135d$3,555 · 1 market · 1 alert · 54% wins
- 0x2005d1…75ea$2,449 · 1 market · 1 alert · 56% wins
- 0x78b009…9f1a$2,000 · 1 market · 1 alert · 94% wins
- 0x32ed51…f960$1,570 · 1 market · 1 alert · 67% wins
- 0x9c3ce0…e8c9$1,452 · 1 market · 1 alert · 95% wins
- 0xa80439…2a75$1,200 · 1 market · 1 alert · 63% wins
FAQs
What are the Mariners vs. Nationals prediction market odds?
This event hub tracks Polymarket odds for Seattle Mariners vs. Washington Nationals markets, including the current O/U 10.5 total runs market. Odds can move as traders react to lineups, pitching news, weather, and in-game expectations.
What is the smart money doing on Mariners vs. Nationals?
PolySpotter has tracked $2,000 in smart money across this event. The key recent signal is that a 96% winner has been buying Under on the 10.5 total runs market.
What does O/U 10.5 mean for this game?
O/U 10.5 is a totals market on whether the Mariners and Nationals will combine for more than 10.5 runs or fewer than 10.5 runs. Since baseball scores are whole numbers, 11 or more runs would be Over, while 10 or fewer would be Under.
When does the Mariners vs. Nationals market resolve?
The game is scheduled for June 14 at 1:35 PM ET. If the game is postponed, the market is expected to remain open until the game is completed; if it is canceled with no makeup or ends in a tie, resolution rules may apply as specified by Polymarket.