# Boston Red Sox at Seattle Mariners — MLB, Sunday, June 21, 2026

MLB game on Sunday, June 21, 2026, 4:10 PM ET at T-Mobile Park, Seattle. Status: final.

Score: BOS 1 – SEA 3 (Final).

## Model

| Measure | Value |
|---|---|
| Model edges priced | 0 |

## Recap

2 of 3 graded model edges won.

## FAQ

**When does Boston Red Sox at Seattle Mariners start?**

Boston Red Sox at Seattle Mariners (MLB) started at 4:10 PM ET on Sunday, June 21, 2026 at T-Mobile Park, Seattle.

**What was the final score of Boston Red Sox at Seattle Mariners?**

Seattle Mariners won 3–1.

**How did the model's edges do in Boston Red Sox at Seattle Mariners?**

Of 3 graded model edges frozen before tip-off, 2 won and 1 lost.

## Related

- [Seattle Mariners](https://edgegoat.com/mlb/teams/sea)
- [Boston Red Sox](https://edgegoat.com/mlb/teams/bos)
- [MLB slate for Sunday, June 21, 2026](https://edgegoat.com/mlb/2026-06-21)

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Source: EdgeGoat model projections (https://edgegoat.com) — CC BY 4.0 · data as of 2026-06-21
Canonical: https://edgegoat.com/mlb/games/2026-06-21-bos-at-sea
License: CC BY 4.0 — https://creativecommons.org/licenses/by/4.0/
Methodology: https://edgegoat.com/methodology
Model probabilities are estimates, not guarantees. 21+. Gambling problem? Call 1-800-GAMBLER.