Los Angeles Angels @ Boston Red Sox Prediction – September 9, 2026
As the 2026 MLB season heads into its final weeks, every game carries playoff-positioning weight. On September 9, the Los Angeles Angels travel to Boston to face the Red Sox in a matchup that WP Baseball Predictor's model views with strong confidence in favor of the home side. Here's a full breakdown of why Boston looks like the play on this slate.
Starting Pitcher Matchup: Bennett vs. Johnson
The pitching matchup is the clearest driver of WP's lean in this game, and it's a significant one.
Jake Bennett (Boston Red Sox)
Bennett enters this start as arguably the most compelling reason to back Boston. His xFIP of 3.35 marks him as one of the more effective starting pitchers in this matchup by a considerable margin. Expected Fielding Independent Pitching (xFIP) strips out defense and luck to measure a pitcher's true performance quality, and a 3.35 figure signals that Bennett has been generating outs efficiently and limiting hard contact at an impressive rate. On a September stage with playoff implications, a pitcher of Bennett's caliber at home gives Boston a substantial built-in edge.
Ryan Johnson (Los Angeles Angels)
Johnson presents a very different profile. His xFIP of 5.28 is a number that raises real concern for the Angels' chances in this game. An xFIP in that range suggests Johnson has been susceptible to giving up hard contact and has struggled to post reliable outs at the big-league level. Facing a Red Sox offense that ranks above the Angels at the plate, Johnson will need to be at his very best to keep Los Angeles in contention.
Team Stats: Red Sox Hold the Edge on Both Sides
Beyond the pitching matchup, the underlying team metrics further support WP's strong confidence call on Boston.
- wOBA: Red Sox (.316) vs. Angels (.298) — Boston's offense has been meaningfully more productive on a per-plate-appearance basis.
- FIP: Red Sox (3.76) vs. Angels (4.21) — Boston's pitching staff as a whole has been the more reliable unit.
- ERA: Red Sox (3.61) vs. Angels (4.20) — The Red Sox bullpen and rotation have combined to limit runs at a superior rate all season.
Across every major metric provided, Boston holds an advantage. This is not a team leaning on one dimension — the Red Sox are outperforming the Angels both offensively and on the mound.
Injury Report: Concerns on Both Sides
Injuries are a factor worth monitoring heading into first pitch.
Los Angeles Angels
- Sam Bachman (Forearm, 15-Day IL)
- Gustavo Campero (Hamstring, 10-Day IL)
- George Klassen (Back, 15-Day IL)
- Nolan Schanuel (Side, 10-Day IL)
The Angels are dealing with notable depth losses. Schanuel's absence in particular removes a key offensive contributor, further thinning a lineup that already trails Boston in wOBA.
Boston Red Sox
- Willson Contreras (Hamstring, 10-Day IL)
- Tyron Guerrero (Shoulder, 15-Day IL)
- Curtis Mead (Wrist, 10-Day IL)
- Ceddanne Rafaela (Quadriceps, 10-Day IL)
- Brendan Rodgers (Shoulder, Out)
Boston is not without its own injury concerns, carrying five players out of action. Despite that attrition, the Red Sox's superior team-wide metrics and the pitching advantage with Bennett on the hill keep them as the clear model favorite.
Dark Horse Home Run Picks
🔴 Mike Trout (Angels)
Even in a tough matchup, Trout is always a threat to go deep. His power profile makes him the Angels' most dangerous individual wild card regardless of the situation on the mound.
🔵 Mickey Gasper (Red Sox)
Gasper is WP's dark horse pick for Boston. With a strong starting pitcher limiting his team's need to manufacture runs, Gasper has the opportunity to make a statement swing count in a favorable home environment.
WP Baseball Predictor's Pick: Red Sox Moneyline
WP Baseball Predictor backs the Boston Red Sox on the moneyline with strong confidence. The combination of Jake Bennett's elite xFIP against Ryan Johnson's concerning 5.28 xFIP, Boston's superior offensive wOBA, and better team-wide pitching metrics create a compelling, multi-layered case for the Red Sox at home. Factor in the Angels' injury-depleted lineup, and Boston shapes up as one of the more well-supported picks on the September 9 slate.