The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 256 qualified hitters (292+ 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. Herrera, Iván in signal, the comp in amber.

STL · bats R · 630 PA

Ranked comps for Herrera, Iván

#PlayerSimilarityAgrees onDiffers onOpen
01 Sheets, Gavin SD · L · 431 PA 0.81 xwOBA on contactHard-hit rateWhiff rate Isolated power +1.2zFly-ball rate +0.7zBarrel rate +0.5z Player Projection Swing lab
02 Bogaerts, Xander SD · R · 543 PA 0.79 xwOBA on contactStrikeout rateAvg exit velocity Fly-ball rate +0.9zChase rate -0.9zSwing length -0.8z Player Projection Swing lab
03 Chapman, Matt SF · R · 364 PA 0.73 Walk ratePull rateWhiff rate Sprint speed +1.5zBat speed +1.0zSwing length -0.7z Player Projection Swing lab
04 Springer, George TOR · R · 467 PA 0.72 Strikeout rateIn-zone contactxwOBA on contact Fly-ball rate +1.3zIsolated power +1.1zSprint speed +0.8z Player Projection Swing lab
05 Vaughn, Andrew MIL · R · 321 PA 0.71 Barrel ratexwOBA on contactIsolated power Oppo rate +1.3zSwing length -1.2zPull rate -1.1z Player Projection Swing lab
06 Contreras, William MIL · R · 572 PA 0.71 Oppo rateIn-zone contactChase rate Barrel rate +1.2zFly-ball rate +1.2zSwing length -1.1z Player Projection Swing lab
07 Rengifo, Luis MIL · L · 374 PA 0.65 Pull rateBarrel rateIn-zone contact Swing length -1.2zMax exit velocity -1.1zGround-ball rate +0.9z Player Projection Swing lab
08 Realmuto, J.T. PHI · R · 411 PA 0.65 Isolated powerBat speedAvg exit velocity Sprint speed +1.6zSweet-spot rate +1.4zFly-ball rate +1.2z Player Projection Swing lab
09 Garcia, Maikel KC · R · 319 PA 0.65 xwOBA on contactAvg exit velocityBarrel rate Swing length -1.3zSprint speed +1.2zSweet-spot rate +1.1z Player Projection Swing lab
10 Guerrero Jr., Vladimir TOR · R · 539 PA 0.64 Ground-ball rateIn-zone contactFly-ball rate Max exit velocity +1.5zBat speed +1.2zOppo rate +1.1z Player Projection Swing lab
11 Bell, Josh MIN · L · 566 PA 0.64 Hard-hit rateSprint speedAvg exit velocity Fly-ball rate +1.5zSweet-spot rate +1.1zBarrel rate +1.1z Player Projection Swing lab
12 Yoshida, Masataka BOS · L · 316 PA 0.63 Sprint speedChase rateIsolated power Max exit velocity -1.4zSwing length -1.3zStrikeout rate -1.1z 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.