The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 264 qualified hitters (202+ 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. Wetherholt, JJ in signal, the comp in amber.

STL · bats L · 421 PA

Ranked comps for Wetherholt, JJ

#PlayerSimilarityAgrees onDiffers onOpen
01 Grissom, Vaughn LAA · R · 211 PA 0.82 Whiff rateMax exit velocityIsolated power Chase rate +0.8zSwing length -0.8zSprint speed -0.8z Player Projection Swing lab
02 Yastrzemski, Mike ATL · L · 273 PA 0.77 Fly-ball rateIn-zone contactAvg exit velocity Strikeout rate +1.3zPull rate +1.2zChase rate +0.6z Player Projection Swing lab
03 Bellinger, Cody NYY · L · 419 PA 0.75 Sweet-spot rateWhiff ratexwOBA on contact Chase rate +1.2zHard-hit rate -1.2zPull rate +0.8z Player Projection Swing lab
04 Tucker, Kyle LAD · L · 400 PA 0.74 xwOBA on contactIsolated powerOppo rate Sprint speed -1.1zPull rate +0.9zWalk rate +0.9z Player Projection Swing lab
05 Steer, Spencer CIN · R · 378 PA 0.74 Avg exit velocityFly-ball rateMax exit velocity Pull rate +1.1zStrikeout rate +1.0zIsolated power +0.9z Player Projection Swing lab
06 Rutschman, Adley BAL · L · 290 PA 0.72 xwOBA on contactBarrel rateWalk rate Swing length -1.3zSprint speed -1.1zIn-zone contact +1.0z Player Projection Swing lab
07 O'Hearn, Ryan PIT · L · 359 PA 0.69 Ground-ball ratePull rateAvg exit velocity Chase rate +1.5zIsolated power +1.0zStrikeout rate +1.0z Player Projection Swing lab
08 Springer, George TOR · R · 312 PA 0.67 Bat speedWalk rateSwing length Sweet-spot rate -1.5zMax exit velocity +1.0zIsolated power +1.0z Player Projection Swing lab
09 Grisham, Trent NYY · L · 321 PA 0.67 Fly-ball ratexwOBA on contactHard-hit rate Walk rate +1.4zChase rate -1.0zMax exit velocity +1.0z Player Projection Swing lab
10 Larnach, Trevor MIN · L · 307 PA 0.66 Max exit velocityxwOBA on contactBarrel rate Hard-hit rate -1.4zChase rate +1.1zWhiff rate +1.1z Player Projection Swing lab
11 Realmuto, J.T. PHI · R · 271 PA 0.66 Isolated powerPull rateMax exit velocity Chase rate +1.6zSweet-spot rate -1.2zOppo rate +1.0z Player Projection Swing lab
12 Thomas, Lane KC · R · 288 PA 0.64 Bat speedxwOBA on contactIn-zone contact Swing length -1.7zWalk rate +1.1zStrikeout rate +1.1z 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.