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. Ballesteros, Moisés in signal, the comp in amber.

CHC · bats L · 371 PA

Ranked comps for Ballesteros, Moisés

#PlayerSimilarityAgrees onDiffers onOpen
01 Bailey, Patrick CLE · L · 380 PA 0.76 Isolated powerBat speedIn-zone contact xwOBA on contact +1.2zSweet-spot rate +1.2zChase rate -0.9z
02 McMahon, Ryan NYY · L · 390 PA 0.74 Isolated powerSweet-spot rateOppo rate Chase rate -1.2zStrikeout rate +1.0zPull rate +0.9z
03 Walker, Christian HOU · R · 657 PA 0.74 Oppo rateIn-zone contactBarrel rate Isolated power +1.3zSwing length +0.9zBat speed +0.8z
04 Contreras, William MIL · R · 684 PA 0.65 Hard-hit rateBarrel rateWalk rate Strikeout rate -1.4zChase rate -1.4zWhiff rate -1.1z
05 O'Hearn, Ryan PIT · L · 472 PA 0.65 Fly-ball rateStrikeout rateBat speed Sprint speed +1.3zMax exit velocity -1.2zSweet-spot rate +1.1z
06 Cortes, Carlos ATH · L · 392 PA 0.65 Pull rateIn-zone contactIsolated power Chase rate -1.3zHard-hit rate -1.2zSweet-spot rate +1.2z
07 Tawa, Tim AZ · R · 370 PA 0.64 Whiff rateBat speedHard-hit rate Sprint speed +2.0zOppo rate -1.4zSweet-spot rate +1.3z
08 Grissom, Vaughn LAA · R · 474 PA 0.61 xwOBA on contactPull rateIsolated power Sprint speed +1.4zHard-hit rate -1.3zIn-zone contact +1.1z
09 Goldschmidt, Paul NYY · R · 403 PA 0.61 Bat speedStrikeout rateBarrel rate In-zone contact -1.3zSwing length +1.2zIsolated power +1.2z
10 Herrera, Iván STL · R · 725 PA 0.60 Oppo rateIsolated powerSweet-spot rate Fly-ball rate -1.5zSwing length +1.4zChase rate -1.3z
11 Machado, Manny SD · R · 713 PA 0.60 Avg exit velocityFly-ball rateIn-zone contact Swing length +2.0zIsolated power +1.1zChase rate -1.1z
12 Baldwin, Drake ATL · L · 666 PA 0.59 In-zone contactOppo rateWalk rate xwOBA on contact +1.7zSweet-spot rate +1.7zBat speed +1.3z

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.