The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 257 qualified hitters (334+ 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. Rocchio, Brayan in signal, the comp in amber.

CLE · bats L · 602 PA

Ranked comps for Rocchio, Brayan

#PlayerSimilarityAgrees onDiffers onOpen
01 Grissom, Vaughn LAA · R · 465 PA 0.77 Walk rateSwing lengthWhiff rate Barrel rate +1.1zPull rate -1.1zSweet-spot rate -0.8z
02 McNeil, Jeff ATH · L · 526 PA 0.76 Avg exit velocitySwing lengthGround-ball rate In-zone contact +1.1zWhiff rate -1.1zSprint speed -0.8z
03 Albies, Ozzie ATL · L · 696 PA 0.76 In-zone contactWhiff rateWalk rate Fly-ball rate +1.5zSweet-spot rate -1.0zGround-ball rate -0.9z
04 Loftin, Nick KC · R · 446 PA 0.75 Sweet-spot rateHard-hit ratexwOBA on contact Chase rate -1.2zWalk rate +1.0zIn-zone contact +0.9z
05 Young, Cole SEA · L · 654 PA 0.75 In-zone contactWalk rateGround-ball rate Hard-hit rate +1.0zSweet-spot rate -1.0zSwing length -0.9z
06 Lee, Brooks MIN · L · 647 PA 0.75 Oppo rateBat speedxwOBA on contact Sweet-spot rate -1.1zIsolated power +1.0zFly-ball rate +0.9z
07 Heim, Jonah ATH · L · 399 PA 0.74 Chase rateWhiff ratexwOBA on contact Sprint speed -1.7zBarrel rate +0.8zPull rate -0.7z
08 Young, Jacob WSH · R · 484 PA 0.72 Sweet-spot rateIn-zone contactWhiff rate Pull rate -1.4zSprint speed +1.4zChase rate -1.0z
09 Palacios, Richie TB · L · 400 PA 0.71 In-zone contactGround-ball ratexwOBA on contact Walk rate +1.8zSweet-spot rate -1.0zMax exit velocity -1.0z
10 Altuve, Jose HOU · R · 578 PA 0.70 Whiff rateIn-zone contactxwOBA on contact Sweet-spot rate -1.4zStrikeout rate +1.1zGround-ball rate +0.9z
11 Varsho, Daulton TOR · L · 546 PA 0.70 Sprint speedAvg exit velocityIn-zone contact Barrel rate +1.3zSwing length +1.0zStrikeout rate +1.0z
12 Gilbert, Drew SF · L · 406 PA 0.69 Avg exit velocityPull rateSprint speed Chase rate -1.3zWalk rate +1.1zxwOBA on contact +1.0z

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.