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John Klein

Blue Jays
Number #65
Position RP
Bats R
Throws R
Age 24
Height 6' 5"
Weight 225 lbs
Birth Place Brooklyn Park, MN
Born Apr 22, 2002

Key Insights

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

Klein's 4-seam fastball carries 15.9 inches of ride against a spinless ball, the biggest vertical move in his arsenal.

68 thrown, averaging 94.8 mph.
This is the pitch he goes to when he needs the out

With two strikes Klein goes to the changeup: 34% of his two-strike pitches, against 23.5% the rest of the time.

50 two-strike pitches in 2026.
He saves one pitch for one side of the plate

Klein throws the changeup 35.4% of the time against left-handers and 16.7% against right-handers.

66 pitches to right-handers, 82 to left-handers.
One pitch of his runs sideways more than almost anyone's

Klein's changeup moves 13.8 inches toward the third-base side, the biggest horizontal move in his arsenal.

40 thrown, averaging 86.6 mph.
He works one part of the zone far more than the rest

Klein lives at the bottom of the zone: his average pitch crosses at 2.23 feet, against a zone that runs 1.5 to 3.5.

148 located pitches in 2026.
There is one pitch of his that keeps getting hit

Contact off Klein's 4-seam fastball leaves the bat at 85.6 mph, against 81.4 off his changeup.

68 and 40 of them thrown.

Movement Profile (Induced Break)

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

Player Bio Data
DOB Apr 22, 2002
Birth Place Brooklyn Park, MN
Height 6' 5"
Weight 225 lbs LBS
Bats/Throws R/R