The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 261 qualified hitters (226+ PA). Closer to the center star = more alike. xwOBA is deliberately excluded: this maps how hitters are built, not results twins.

strong match (0.55+) moderate (0.45 to 0.55) weaker (< 0.45) star size + line weight scale with similarity · rings mark 0.70 / 0.50 / 0.30 · hover a star for why, click for the fingerprint
Radial fingerprint · population percentiles

Two profile shapes drawn over the same axes: overlap is what makes them comps, gaps are where they part. Heim, Jonah in signal, the comp in amber.

ATH · bats L · 227 PA

Ranked comps for Heim, Jonah

#PlayerSimilarityAgrees onDiffers onOpen
01 Lee, Brooks MIN · L · 434 PA 0.72 Chase rateSweet-spot rateAvg exit velocity Swing length -1.4zIn-zone contact +1.4zxwOBA on contact -0.9z Player Projection Swing lab
02 Walker, Christian HOU · R · 441 PA 0.70 Fly-ball ratePull ratexwOBA on contact Hard-hit rate +1.2zMax exit velocity +1.2zBat speed +1.1z Player Projection Swing lab
03 Goldschmidt, Paul NYY · R · 311 PA 0.68 Chase rateSprint speedAvg exit velocity In-zone contact -1.2zPull rate -1.2zBarrel rate +1.1z Player Projection Swing lab
04 Arenado, Nolan AZ · R · 402 PA 0.67 Sprint speedBarrel ratexwOBA on contact Swing length +2.0zOppo rate -1.2zWalk rate +1.0z Player Projection Swing lab
05 Rocchio, Brayan CLE · L · 416 PA 0.67 Chase rateGround-ball rateMax exit velocity Sprint speed +1.5zIsolated power -1.1zBarrel rate -1.0z Player Projection Swing lab
06 Bell, Josh MIN · L · 432 PA 0.66 Whiff rateIn-zone contactOppo rate Hard-hit rate +1.3zMax exit velocity +1.2zSwing length +0.9z Player Projection Swing lab
07 Grissom, Vaughn LAA · R · 253 PA 0.65 Max exit velocityFly-ball rateGround-ball rate Hard-hit rate +1.2zIn-zone contact +1.1zSweet-spot rate +1.1z Player Projection Swing lab
08 Varsho, Daulton TOR · L · 365 PA 0.65 Pull rateSwing lengthBarrel rate Sprint speed +1.5zIn-zone contact +1.1zIsolated power -1.1z Player Projection Swing lab
09 Albies, Ozzie ATL · L · 480 PA 0.65 Avg exit velocityMax exit velocityWalk rate Sprint speed +1.3zGround-ball rate -1.1zPull rate +1.1z Player Projection Swing lab
10 O'Hearn, Ryan PIT · L · 400 PA 0.62 Pull rateBat speedOppo rate Hard-hit rate +1.7zSweet-spot rate +1.2zSprint speed +1.1z Player Projection Swing lab
11 Springer, George TOR · R · 354 PA 0.61 Sweet-spot rateIsolated powerPull rate Chase rate -1.7zWalk rate +1.2zHard-hit rate +1.2z Player Projection Swing lab
12 Vientos, Mark NYM · R · 269 PA 0.60 Ground-ball rateSwing lengthSweet-spot rate Hard-hit rate +1.6zWhiff rate +1.2zBat speed +1.0z Player Projection Swing lab

Weighted RMS z-distance over 6 feature groups, standardized within the qualified population; similarity = exp(-alpha * d^2), one global fixed transform. xwOBA excluded by design: this matches profile shape, not outcome twins. Descriptive, not predictive.