The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 256 qualified hitters (340+ 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 · 491 PA

Ranked comps for Stephenson, Tyler

#PlayerSimilarityAgrees onDiffers onOpen
01 Aranda, Jonathan TB · L · 712 PA 0.77 Bat speedOppo ratePull rate Chase rate +1.2zSprint speed -1.0zWhiff rate -0.9z Player Projection Swing lab
02 Abreu, Wilyer BOS · L · 703 PA 0.65 Walk rateOppo rateGround-ball rate Chase rate +1.3zStrikeout rate -1.2zBat speed +1.2z Player Projection Swing lab
03 Suzuki, Seiya CHC · R · 642 PA 0.64 Chase ratexwOBA on contactIn-zone contact Sweet-spot rate -1.3zOppo rate -1.0zWalk rate +0.9z Player Projection Swing lab
04 Baty, Brett NYM · L · 490 PA 0.63 Swing lengthSprint speedAvg exit velocity Bat speed +1.5zSweet-spot rate -1.2zChase rate +1.1z Player Projection Swing lab
05 Greene, Riley DET · L · 615 PA 0.63 Fly-ball rateHard-hit rateMax exit velocity Bat speed +1.8zOppo rate -1.2zxwOBA on contact +1.1z Player Projection Swing lab
06 Beavers, Dylan BAL · L · 368 PA 0.62 Strikeout rateGround-ball rateFly-ball rate Sprint speed +1.6zAvg exit velocity -1.2zPull rate +1.1z Player Projection Swing lab
07 Eldridge, Bryce SF · L · 456 PA 0.61 Whiff rateStrikeout rateSwing length Sweet-spot rate -1.3zOppo rate -1.2zWalk rate +1.1z Player Projection Swing lab
08 Karros, Kyle COL · R · 496 PA 0.60 Max exit velocitySprint speedIsolated power Fly-ball rate -1.7zGround-ball rate +1.5zStrikeout rate -1.2z Player Projection Swing lab
09 McLain, Matt CIN · R · 518 PA 0.60 Strikeout rateWhiff rateBat speed Avg exit velocity -1.7zSwing length -1.3zSprint speed +1.3z Player Projection Swing lab
10 Reynolds, Bryan PIT · L · 719 PA 0.56 Avg exit velocityxwOBA on contactWhiff rate Ground-ball rate +2.0zFly-ball rate -1.3zSwing length -1.1z Player Projection Swing lab
11 Lowe, Nathaniel CIN · L · 478 PA 0.55 xwOBA on contactSwing lengthHard-hit rate Fly-ball rate -1.7zBat speed +1.3zSprint speed -1.1z Player Projection Swing lab
12 Pages, Andy LAD · R · 625 PA 0.54 Pull rateMax exit velocityIsolated power Chase rate +1.6zStrikeout rate -1.4zFly-ball rate -1.3z 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.