Matt Olson vs Mitch Keller

The Almanac's Take

Olson carries the platoon edge here as a lefty against Keller's right hand, and his season line backs it up — .268/.339/.538 with 24 home runs and a .877 OPS across 389 plate appearances. Keller has been hittable all year: a 5.02 ERA, 1.31 WHIP, and 12 home runs allowed in just over 100 innings. The head-to-head is only 16 PA — genuinely too thin to move the needle — though Olson has made hard contact when they've met, averaging 93.2 mph exit velocity. The season-long platoon read is the real case here, and Keller's numbers give it legs.

Career head-to-head

AVG

.500

8-for-16

PA

16

HR

1

K

2

BB

0

Pitches seen

67

Avg exit velo

93.2 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

• 2026-06-05Single · Sinker 92.5 mph · 105.4 mph EV
• 2026-06-05Field Out · Cutter 90.6 mph · 93.3 mph EV
• 2026-06-05Single · Cutter 90.1 mph · 66.7 mph EV
• 2025-09-26Strikeout · 4-Seam Fastball 95.3 mph
• 2025-09-26Home Run · Sweeper 83.8 mph · 102.5 mph EV
• 2024-05-25Field Out · Sinker 94.4 mph · 97.8 mph EV
• 2024-05-25Single · Cutter 92.2 mph · 104.6 mph EV
• 2024-05-25Field Out · Cutter 92.5 mph · 89.2 mph EV
• 2023-09-08Hit By Pitch · Sweeper 84.1 mph
• 2023-09-08Single · Sweeper 82.5 mph · 70.4 mph EV
• 2023-09-08Single · Sweeper 82.1 mph · 106.4 mph EV
• 2023-08-08Strikeout · 4-Seam Fastball 97.1 mph
• 2023-08-08Single · Cutter 91.8 mph · 105.6 mph EV
• 2023-08-08Field Out · Cutter 91.9 mph · 82.2 mph EV
• 2022-08-24Field Out · 4-Seam Fastball 96.3 mph · 85.7 mph EV
• 2022-08-24Double · Changeup 90.5 mph · 101.5 mph EV