Seattle Mariners at Boston Red Sox
Lineups
Lineups are usually announced ~90 minutes before first pitch. Check back soon.
Manager comparison
Bullpen availability
- Available 7
- Limited 0
- Rest required 0
- Inactive 0
- Available 8
- Limited 0
- Rest required 0
- Inactive 0
Recent form
Season series: 1-2 with SEA listed first across 3 prior meetings.
Pitching & bullpen preview
Probable starters and each bullpen's availability load in the sections above — the Mariners and Red Sox staffs going in.
Once the game ends, a full pitching and bullpen breakdown appears here: starter lines, the relief sequence and each arm's role, pitch counts, and where the game turned.
Keep reading
How RunsLeft analyzes games
Standard content on this page comes from the MLB Stats API. The pitching analysis describes how the game was pitched — the starter's line, the bullpen sequence and each arm's role (opener, bulk, setup, closer), pitch counts as a fatigue signal, and the leverage context where the game turned. Reliever roles are inferred from how the manager used each arm up to that date. It describes structure and constraints; it does not grade the manager.