MLB · Sunday, June 21, 2026

Boston Red Sox vs Seattle Mariners — Result, Odds & Recap

Boston Red Sox schedule & results·Seattle Mariners schedule & results

Final: Boston Red Sox 1, Seattle Mariners 3

Pre-game, our model projected 3.9–4.4 (total 8.3). Actual: 1–3. Model called the winner.

Closing Moneyline Odds

as of Jun 21, 7:00 PM ET
BookBoston Red SoxSeattle Mariners
bet365+118-140
betmgm+108-126
betrivers+110-135
caesars+106-132
draftkings+113-136
fanduel+126-148
pinnacle+110-119

Boston Red Sox vs Seattle Mariners: recap & odds

Boston Red Sox lost to Seattle Mariners 1–3 on Sunday, June 21, 2026. EdgeBets' pre-game simulation projected roughly 3.9–4.4 (total 8.3). Closing moneyline prices ranged across 7 sportsbooks: Boston Red Sox from +106 to +126.

EdgeBets does not claim to beat the closing line or guarantee outcomes. Projections are informational. 19+. Please bet responsibly.

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