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. Stephenson, Tyler in signal, the comp in amber.

CIN · bats R · 278 PA

Ranked comps for Stephenson, Tyler

#PlayerSimilarityAgrees onDiffers onOpen
01 McLain, Matt CIN · R · 329 PA 0.70 Strikeout rateGround-ball rateBat speed Swing length -1.4zSprint speed +1.2zAvg exit velocity -1.1z
02 Aranda, Jonathan TB · L · 425 PA 0.67 Barrel rateAvg exit velocityHard-hit rate Sweet-spot rate -1.3zChase rate +1.1zSprint speed -1.1z
03 Ozuna, Marcell PIT · R · 269 PA 0.67 Sweet-spot rateSwing lengthIsolated power Sprint speed -1.4zIn-zone contact -1.1zOppo rate -1.1z
04 Smith, Will LAD · R · 212 PA 0.66 Isolated powerSweet-spot rateChase rate Whiff rate -1.6zBarrel rate +1.1zStrikeout rate -1.1z
05 Suzuki, Seiya CHC · R · 343 PA 0.64 In-zone contactStrikeout ratexwOBA on contact Sweet-spot rate -1.4zOppo rate -1.2zIsolated power +1.2z
06 Karros, Kyle COL · R · 343 PA 0.63 Max exit velocitySprint speedIn-zone contact Fly-ball rate -1.6zGround-ball rate +1.4zSwing length -1.1z
07 Greene, Riley DET · L · 423 PA 0.58 Fly-ball rateStrikeout rateAvg exit velocity Bat speed +1.7zSweet-spot rate -1.4zOppo rate -1.2z
08 García, Adolis PHI · R · 278 PA 0.58 xwOBA on contactMax exit velocityBat speed Fly-ball rate -1.6zChase rate +1.3zSweet-spot rate -1.3z
09 Abreu, Wilyer BOS · L · 415 PA 0.58 Ground-ball ratexwOBA on contactPull rate Sweet-spot rate -1.6zChase rate +1.6zBat speed +1.1z
10 Wetherholt, JJ STL · L · 421 PA 0.56 Hard-hit rateIsolated powerIn-zone contact Oppo rate -1.8zStrikeout rate -1.6zWhiff rate -1.1z
11 Hernández, Teoscar LAD · R · 271 PA 0.54 Hard-hit rateAvg exit velocityOppo rate In-zone contact -1.9zSweet-spot rate -1.9zGround-ball rate +1.0z
12 O'Hearn, Ryan PIT · L · 359 PA 0.53 Bat speedxwOBA on contactBarrel rate Chase rate +1.7zMax exit velocity -1.3zSweet-spot rate -1.3z

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.