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Junior Perez

2026
White Sox· CF · bats R · throws R· 36 PA

Grade

How good he's been, and at what
Cbetter than 45% of hitters at creating bases
Aggressive Power

Big pop, rarely takes a walk.

Makes some of the hardest contact around

Junior Perez squares the ball up — harder contact than 78% of qualified hitters. The strikeouts pile up, though — only 4% of qualified hitters whiff more often. Early-season read — only 36 plate appearances so far.

36 plate appearances · data through 2026-08-22.

How to read this chart
Each spoke is a skill estimate adjusted for sample size — not raw season stats — so farther out = better. Spokes are the metric itself; ↓ marks a rate where a LOWER number is better. Percentiles vs. 499 qualified hitters — 50+ plate appearances. He hasn't reached that bar himself, so he is measured against them rather than counted among them.

Plays like…

Same archetype, nearest by rate — the hitters whose profile looks most like this one.

Luis TorrensMetsGage WorkmanPadresTim TawaD-backsHeliot RamosYankees

Hitter type

What kind of hitter he is, next to the league

Platoon splits

How he fares against lefties and righties

Platoon splits (EB/PA)

Better vs LHP than vs RHP by 0.022 EB/PA (modeled).

50% probable range: +0.002 to +0.042

vs LHP27 PA0.442

vs LHP: shrunk estimate 0.442 EB/PA, 50% probable range 0.413 to 0.471, based on 27 plate appearances. Raw (unshrunk) rate: 0.209 EB/PA. League median vs LHP: 0.425 EB/PA.

Raw vs LHP rate (0.209) is off this scale — small samples like this are exactly why the shrunk estimate (the dot) is the trustworthy number, not the raw one.

vs RHP9 PA0.420

vs RHP: shrunk estimate 0.420 EB/PA, 50% probable range 0.391 to 0.446, based on 9 plate appearances. Raw (unshrunk) rate: 0.958 EB/PA. League median vs RHP: 0.436 EB/PA.

Raw vs RHP rate (0.958) is off this scale — small samples like this are exactly why the shrunk estimate (the dot) is the trustworthy number, not the raw one.

0.3810.4060.4310.4560.481
← worsebetter →
Above league medianBelow50% probable rangeHis raw rateMiddle half of the league

A narrower split than the typical righty bat's (median 0.034). Against righties he sits below the league median — a genuine platoon vulnerability.

He sits in the league's middle half vs both lefties and righties.

How to read this chart
  • Tap or hover any mark for its number, or tab to a row for all of them.
  • His raw rate is the unshrunk number against that hand — small samples make it noisy, which is why the model pulls his estimate toward a more trustworthy value.
  • “Middle half of the league” is the 25th–75th percentile of all hitters against that hand.
  • Shrunk splits beat raw splits decisively at low PA counts and converge with them as playing time builds — individual platoon gaps need roughly 1,000+ PA vs a hand before the raw number alone can be trusted.

How he hits

What happens when he puts a ball in play

He hits the ball up the middle most often, but does his most damage to the pull side.

Best batted balls

Where every ball Junior Perez put in play landed this season.
hit · out
EBlowhigh
vs Miguel UllolaHome run
EV 107 mph · LA 24° · EB 3.6
07/26 vs Astros
vs Trey GibsonHome run
EV 106 mph · LA 25° · EB 3.5
06/30 vs Orioles
vs Jake BennettOut
EV 104 mph · LA 31° · EB 1.4
07/08 vs Red Sox
vs Payton TolleOut
EV 96 mph · LA 39° · EB 1.0
07/07 vs Red Sox
vs Tarik SkubalHome run
EV 102 mph · LA 21° · EB 1.0
06/19 vs Tigers
How to read this chart
Dot color is estimated bases (EB) — what the contact was worth, regardless of what the defense did with it. So a dark hollow ring in the outfield is a crushed ball that got caught. Tap or hover a dot or a row to link the two, and use the ▶ links to watch a play on Baseball Savant.

Performance by pitch type

2026 · 139 pitches

Bases he adds per 100 pitches of each type, against the league.

← below leagueabove league →
Four-Seam Fastball (53 pitches)
−4.5
Lg median −0.4Lg best +12.9
Other (86 pitches)

+0.4 bases per 100 · no single-type league comparison

Above league medianBelowMiddle half of the leagueLg medianLg best
How to read this chart
Bases added per 100 pitches of each type — the same scale as the pitcher pages’ “saved/cost per 100”, from the hitter’s side. Every pitch counts: taking a ball adds value, whiffing loses it, and the pitch that ends the plate appearance scores its outcome against the count’s expectation. Values are bases vs the league count-average: +3.5 means his results against that pitch have been worth about 3.5 extra bases per 100 seen. Types with fewer than 50 pitches seen pool into “Other”.

Swing

How fast he swings, and what he changes with two strikes. League tracking starts in 2024.

Swing at a glance

2026 · data through 2026-08-22
Bat speed · 68 swings
74.4 mph
Lg median 71.1 mph
Slowest: S. Kwan (61.9 mph)Fastest: J. Caminero (78.7 mph)
Lg median

Swings faster than most hitters. His swing length and attack angle both sit in the league's middle range. Changes his swing less than most hitters with two strikes. His bat travels on a flatter path than most.

Attack angle
10.6°
Lg median 9.4°
Swing length
7.5 ft
Lg median 7.3 ft
Swing path tilt
27.5°
Lg median 31.6°
Middle half of the league
How to read this chart
  • Competitive swings: bunts and checked-type swings under 50 mph are excluded, so these numbers sit a touch below the bat speeds Savant publishes, which use a different cut.
  • League tracking starts in 2024, and early 2024 has small gaps — about 93% of swings that season have a reading.
  • Swing length — how far the sweet spot of the bat travels during the swing.
  • Attack angle — the bat’s upward or downward tilt through the zone.
  • Swing path tilt — how steep the bat’s path is.
  • None of these is better or worse on its own — swing style trades power against contact (the fastest and slowest swings in the league both belong to stars).

Best games

His biggest games this year

Best games

His best games this season by bases above replacement.