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. Peraza, Oswald in signal, the comp in amber.

LAA · bats R · 387 PA

Ranked comps for Peraza, Oswald

#PlayerSimilarityAgrees onDiffers onOpen
01 Griffin, Konnor PIT · R · 353 PA 0.74 Ground-ball rateWhiff rateMax exit velocity Pull rate +1.0zSprint speed +1.0zBat speed +0.9z Player Projection Swing lab
02 Duran, Ezequiel TEX · R · 612 PA 0.66 xwOBA on contactBat speedIn-zone contact Isolated power +1.3zWalk rate +1.1zStrikeout rate -1.0z Player Projection Swing lab
03 Turner, Trea PHI · R · 735 PA 0.62 Bat speedIn-zone contactWhiff rate Strikeout rate -1.4zFly-ball rate +1.2zGround-ball rate -1.2z Player Projection Swing lab
04 Taveras, Leody BAL · L · 496 PA 0.59 Max exit velocitySprint speedOppo rate Walk rate +1.5zGround-ball rate -1.3zFly-ball rate +1.2z Player Projection Swing lab
05 Ortiz, Joey MIL · R · 453 PA 0.59 Fly-ball rateGround-ball rateHard-hit rate Strikeout rate -1.6zWalk rate +1.4zWhiff rate -1.4z Player Projection Swing lab
06 Gonzales, Nick PIT · R · 626 PA 0.59 Avg exit velocityGround-ball ratexwOBA on contact Strikeout rate -2.2zMax exit velocity -1.1zChase rate -1.1z Player Projection Swing lab
07 Duran, Jarren BOS · L · 637 PA 0.57 Swing lengthSprint speedIn-zone contact Pull rate +1.4zOppo rate -1.1zBarrel rate +1.0z Player Projection Swing lab
08 Realmuto, J.T. PHI · R · 492 PA 0.52 In-zone contactBarrel rateSwing length Chase rate -1.4zGround-ball rate -1.4zStrikeout rate -1.4z Player Projection Swing lab
09 Rafaela, Ceddanne BOS · R · 605 PA 0.51 Pull rateWalk rateIn-zone contact Strikeout rate -1.6zOppo rate +1.4zIsolated power +1.2z Player Projection Swing lab
10 DeLuca, Jonny TB · R · 407 PA 0.51 Walk rateFly-ball rateBat speed Pull rate +1.7zStrikeout rate -1.6zSweet-spot rate -1.3z Player Projection Swing lab
11 Church, Nathan STL · L · 487 PA 0.51 Sprint speedBarrel rateIn-zone contact Strikeout rate -2.1zWhiff rate -1.4zSwing length -1.2z Player Projection Swing lab
12 House, Brady WSH · R · 371 PA 0.49 Whiff rateSwing lengthMax exit velocity Hard-hit rate +1.6zAvg exit velocity +1.5zWalk 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.