Mike Yastrzemski vs Luis Severino

The Almanac's Take

Yastrzemski gets the platoon edge here as a lefty against Severino's right arm, and the season read backs it up on Severino's side — a 4.16 ERA, 1.47 WHIP, and 4.5 BB/9 through 12 starts says he's hittable and wild enough to work counts. Yastrzemski's .695 OPS and 8.6% walk rate in 139 PA this year make him a reasonable fit against a pitcher giving free passes. The 13 head-to-head PA between them is too thin to mean anything — treat the 2-for-12, six-strikeout line as noise. The platoon split and Severino's walk and home run tendencies (nine already surrendered) are the actual story here.

Career head-to-head

AVG

.167

2-for-12

PA

13

HR

0

K

6

BB

1

Pitches seen

62

Avg exit velo

75.3 mph

Career meetings in the Statcast era (2015–present). Even a clear edge over a handful of plate appearances is a small sample — read it as color, not a projection.

Pitch mix to the batter

Plate-appearance log

• 2026-04-01Strikeout · Sweeper 86.1 mph
• 2026-04-01Strikeout · Sinker 96.4 mph
• 2025-07-05Strikeout · Sinker 94.6 mph
• 2025-07-05Field Out · Slider 90.3 mph · 87.2 mph EV
• 2025-07-05Walk · Sweeper 84.0 mph
• 2025-05-17Field Out · Sweeper 85.9 mph · 77.4 mph EV
• 2025-05-17Single · Cutter 90.8 mph · 36.3 mph EV
• 2025-05-17Strikeout · 4-Seam Fastball 95.2 mph
• 2024-05-25Field Out · Sinker 95.5 mph · 87.1 mph EV
• 2024-05-25Field Out · Sinker 96.9 mph · 98.7 mph EV
• 2024-05-25Strikeout · Sinker 96.0 mph
• 2024-04-23Single · 4-Seam Fastball 97.2 mph · 65.2 mph EV
• 2024-04-23Strikeout · 4-Seam Fastball 95.7 mph