The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 260 qualified hitters (204+ 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. Mayer, Marcelo in signal, the comp in amber.

BOS · bats L · 248 PA

Ranked comps for Mayer, Marcelo

#PlayerSimilarityAgrees onDiffers onOpen
01 Chapman, Matt SF · R · 364 PA 0.66 Hard-hit rateBarrel rateIn-zone contact Swing length -1.2zIsolated power +1.1zMax exit velocity +1.0z Player Projection Swing lab
02 Rengifo, Luis MIL · L · 231 PA 0.62 Oppo ratePull rateHard-hit rate Swing length -1.7zFly-ball rate -1.3zWhiff rate -1.2z Player Projection Swing lab
03 Herrera, Iván STL · R · 431 PA 0.62 Oppo ratePull rateBarrel rate Walk rate +1.4zSprint speed -1.2zIsolated power +1.1z Player Projection Swing lab
04 Ortiz, Joey MIL · R · 261 PA 0.62 Ground-ball rateChase rateFly-ball rate Pull rate -1.8zSprint speed +1.2zSwing length -1.1z Player Projection Swing lab
05 Bogaerts, Xander SD · R · 379 PA 0.60 Barrel rateStrikeout rateIn-zone contact Pull rate +1.5zOppo rate -1.2zSwing length -1.1z Player Projection Swing lab
06 Realmuto, J.T. PHI · R · 271 PA 0.59 Walk rateOppo rateMax exit velocity Sweet-spot rate +1.8zxwOBA on contact +1.2zGround-ball rate -1.1z Player Projection Swing lab
07 Bailey, Patrick CLE · L · 207 PA 0.58 Fly-ball rateIsolated powerHard-hit rate Swing length -1.7zSprint speed -1.6zxwOBA on contact +1.0z Player Projection Swing lab
08 Triolo, Jared PIT · R · 229 PA 0.57 Hard-hit rateAvg exit velocityIsolated power Bat speed -1.8zSweet-spot rate +1.4zBarrel rate -1.3z Player Projection Swing lab
09 Yelich, Christian MIL · L · 297 PA 0.56 Oppo rateSprint speedBarrel rate xwOBA on contact +1.6zStrikeout rate +1.5zIn-zone contact -1.2z Player Projection Swing lab
10 Taveras, Leody BAL · L · 304 PA 0.56 Whiff rateOppo rateFly-ball rate Sweet-spot rate +1.4zBat speed -1.4zSwing length -1.3z Player Projection Swing lab
11 Winn, Masyn STL · R · 374 PA 0.55 In-zone contactIsolated powerStrikeout rate Sweet-spot rate +1.6zSwing length -1.4zBat speed -1.2z Player Projection Swing lab
12 Gonzales, Nick PIT · R · 390 PA 0.55 In-zone contactHard-hit rateMax exit velocity Sweet-spot rate +1.7zBat speed -1.5zxwOBA on contact +1.4z 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.