Tampa Bay Rays vs. Seattle Mariners
11 signals across 3 markets · $113,426 tracked · resolves Aug 16, 2026
Follow the Polymarket prediction market for the Tampa Bay Rays vs. Seattle Mariners MLB game on August 8 at 9:50 PM ET. The event includes the game’s outcome and a 6.5-run over/under market, with $1,960 in tracked smart money and a recent signal from a 99% win-rate serial bettor.

Markets (3)
Top trades across all markets
- Sharp bettor leads Seattle cluster
Three wallets committed $21.4K to Seattle, including a highly profitable 84% win-rate bettor adding to an existing position amid a major volume spike.
$5,672Score: 7.4 - Four-wallet Rays buying cluster
Four wallets concentrated $15.7K into Tampa Bay at 46¢ during an extreme pre-event volume spike, though the traders lack a strong proven edge.
$31,829Score: 7.1 - Three-wallet Over cluster with sharp bettor
A $37,000 three-wallet Over cluster includes a highly profitable 63% bettor and coincides with an extreme pre-game volume spike.
$36,998Score: 6.8 - Three-wallet Under accumulation
Three wallets added $9,110 to Under at 42¢ amid an extreme pre-event volume spike, though their existing positions and ordinary win rates make this a moderate-conviction signal.
$10,239Score: 6.5 - 96% win-rate serial bettor
A highly profitable serial trader with a 96% win rate and substantial edge is making a fresh $3,200 bet on Tampa Bay.
$3,200Wallet win rate: 91%Score: 5.8 - 94% win-rate sports sharp
A highly proven sports bettor with a 94% win rate and 7,538 resolved positions placed roughly $2,189 on Under, making this a strong copy-trade signal despite modest market liquidity.
$2,189Wallet win rate: 95%Score: 5.6 - 99% win-rate serial bettor
A highly proven bettor with a 99% win rate and 1,716 resolved positions is buying Over at 56% in an MLB totals market.
$1,960Wallet win rate: 99%Score: 5.4 - 94% win-rate sharp buys Under
A highly proven bettor with a 94% win rate and substantial edge bought Under at 59%, making this a strong copy-trade signal despite the price already rising.
$1,103Wallet win rate: 95%Score: 5.4 - Profitable bettor adds to Under
A profitable high-volume sports trader added to an existing Under position during an extreme pre-event volume spike, with the market subsequently moving from 48% to 54%.
$2,265Wallet win rate: 61%Score: 4.1 - Profitable serial bettor buys Over
A highly experienced serial cross-market bettor with a strong long-term record is making a meaningful 44¢ Over position in an MLB totals market.
$1,876Wallet win rate: 46%Score: 3.4
Top wallets in this event
- 0x5dab5e…22e1$16,095 · 1 market · 1 alert · 52% wins
- 0x161a7f…4103$3,292 · 1 market · 2 alerts · 95% wins
- 0xa08455…bb99$3,200 · 1 market · 1 alert · 91% wins
- 0xbca08c…9705$2,265 · 1 market · 1 alert · 61% wins
- 0xc3c3b3…eec8$1,960 · 1 market · 1 alert · 99% wins
- 0xdc41c3…dd7e$1,876 · 1 market · 1 alert · 46% wins
FAQs
What are the Rays vs. Mariners odds on Polymarket?
Polymarket displays live prices for the Tampa Bay Rays vs. Seattle Mariners markets, including the 6.5-run over/under. Check the event page for the latest market-implied probabilities.
What is the Rays vs. Mariners prediction market trading?
The event covers the outcome of the MLB game and a total-runs market set at 6.5. The game market resolves to the Rays or Mariners based on the winner.
What is smart money doing on Rays vs. Mariners?
PolySpotter is tracking $1,960 in smart money across the event and one signal from a serial bettor with a reported 99% win rate. These signals provide market context, not a guarantee of the result.
When will the Rays vs. Mariners market resolve?
The market is scheduled around the August 8 game at 9:50 PM ET and remains open if the game is postponed until it is completed. If it is canceled without a makeup game or ends in a tie, the game market resolves 50-50.