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Janson Junk

Marlins
Number #26
Position SP
Bats R
Throws R
Age 30
Height 6' 2"
Weight 197 lbs
Birth Place Federal Way, WA
Born Jan 15, 1996

Key Insights

2026
One pitch of his moves in a way hitters rarely see

Junk's 4-seam fastball carries 18.3 inches of ride against a spinless ball, the biggest vertical move in his arsenal.

253 thrown, averaging 94.2 mph.
There is one pitch of his that keeps getting hit

Contact off Junk's 4-seam fastball leaves the bat at 91.0 mph, against 83.6 off his curveball.

253 and 61 of them thrown.
He fills the strike zone and makes hitters beat him

Junk lives in the strike zone: 47.9% of his pitches are in it, 90th percentile.

776 pitches in 2026. 90th percentile among qualified pitchers in 2026, 54th in MLB.
He works one part of the zone far more than the rest

Junk lives at the bottom of the zone: his average pitch crosses at 2.13 feet, against a zone that runs 1.5 to 3.5.

776 located pitches in 2026.
One pitch of his runs sideways more than almost anyone's

Junk's changeup moves 15.1 inches toward the third-base side, the biggest horizontal move in his arsenal.

156 thrown, averaging 87.3 mph.
He throws strikes to one type of hitter and not the other

Junk lands 54.7% of his fastballs in the zone and only 33.3% of his offspeed pitches.

265 of his fastballs, 156 of his offspeed pitches.

Movement Profile (Induced Break)

Catcher's Perspective • Pitch movement relative to a spinless ball

Player Bio Data
DOB Jan 15, 1996
Birth Place Federal Way, WA
Height 6' 2"
Weight 197 lbs LBS
Bats/Throws R/R