O/U 3.5 leads at 84%. Moderate consensus — room for value on contrarian bets.
| # | Outcome | Probability | If Right | Volume |
|---|---|---|---|---|
| 1 | O/U 3.5 | 84% | +20% | - |
| 2 | O/U 4.5 | 75% | +33% | - |
| 3 | 1st 5 Innings O/U 2.5 | 64% | +56% | - |
| 4 | 1st 5 Innings Spread -1.5 | 62% | +60% | - |
| 5 | O/U 5.5 | 61% | +64% | $45 |
| 6 | 1st 5 Innings Spread -2.5 | 57% | +74% | - |
| 7 | O/U 6.5 | 52% | +94% | $1K |
| 8 | 1st 5 Innings Spread -2.5 | 49% | +104% | - |
| 9 | 1st 5 Innings O/U 3.5 | 48% | +106% | - |
| 10 | Extra Innings | 47% | +113% | - |
| 11 | Boston Red Sox vs. Seattle Mariners | 44% | +125% | $19K |
| 12 | NRFI | 43% | +133% | - |
| 13 | O/U 7.5 | 39% | +156% | - |
| 14 | 1st 5 Innings O/U 6.5 | 39% | +156% | - |
| 15 | Spread -1.5 | 36% | +174% | - |
| 16 | 1st 5 Innings O/U 4.5 | 36% | +178% | - |
| 17 | O/U 8.5 | 32% | +212% | $914 |
| 18 | 1st 5 Innings O/U 5.5 | 32% | +217% | - |
| 19 | Spread -1.5 | 30% | +233% | - |
| 20 | Spread -2.5 BEST VALUE | 26% | +292% | - |
Real-money prediction market · Trade with confidence
In the upcoming MLB game between the Boston Red Sox and Seattle Mariners, scheduled for June 21 at 4:10PM ET: This market will resolve to "Boston Red Sox" if the Boston Red Sox win the game. This ma...
This prediction market tracks whether Boston Red Sox vs. Seattle Mariners will occur, with $22K in total trading volume reflecting significant trader interest. Prediction markets aggregate the collective intelligence of participants who stake real money on outcomes, making them one of the most reliable forecasting tools available for events driven by team performance data, historical matchups, and real-time injury reports.
Traders lean toward O/U 3.5 at 84%, suggesting a probable but not certain outcome. This moderate confidence level often reflects genuine uncertainty — markets at this range tend to see the most price movement as new information emerges.
Trading activity is exceptionally high, with $22K traded in the last 24 hours alone (99% of total volume). This surge often indicates breaking news, a key deadline approaching, or a significant shift in market sentiment.
This market is scheduled to resolve by 2026-06-28. As the resolution date approaches, expect increased trading activity and tighter probability estimates. Historical data shows that prediction market accuracy improves significantly in the final days before resolution.
As of Jun 21, 2026 at 10:15 UTC, the leading outcome is O/U 3.5 at 84% probability, with $22K in total trading volume on Polymarket.
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