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Player

Heston Kjerstad

BALLFBats LThrows RActive

Season 2025 · as of 2025-09-28. Daily buckets for rates and trends; EV×LA, Decision / Contact / Damage, and 2023+ bat tracking are season grain. Zone heatmaps stay on Location.

Pitches faced

622

Chase%

38.1%

Zone swing%

76.6%

Whiff%

25.6%

xwOBA

0.290

Barrel%

8.0%

Hard-hit%

41.1%

Avg EV

88.8 mph

Pitches faced
Share of pitches by type.
Plate discipline
Chase (out of zone) vs swing in the zone.
Pitch types faced
Compact rates for the filtered window.
PitchPitchesUsageWhiff%Chase%xwOBA
Four-seam Fastball23938.4%16.7%26.0%0.386
Slider8113.0%30.0%48.9%0.250
Changeup7512.1%32.1%56.8%0.290
Sinker609.6%19.4%40.7%0.214
Cutter426.8%28.6%17.4%0.272
Curveball345.5%18.8%36.4%0.264
Sweeper345.5%37.5%26.3%
Splitter304.8%47.6%60.0%0.148
Slurve142.3%42.9%50.0%
Knuckle Curve121.9%60.0%44.4%
Slow Curve10.2%
Batted-ball mix
Ground ball, line drive, fly ball, popup.
Contact quality
Exit velo × launch angle (season). Dashed outline is the approximate barrel region.
Exit velo (mph)Launch angle (deg)5012050-30
Bat speed by pitch type
2023+ bat tracking. Mean bat speed on swings with a measured reading. Combined with the pitch types this hitter actually faced — not a miss-distance table.
Attack angle vs chase
Attack angle from bat-tracking cubes against chase% from pitches faced. Location behavior stays on Location; this is the pitch-type overlay.
Chase trend
Out-of-zone swing rate by game date.
Exit velo trend
Average exit velocity by game date.