The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 255 qualified hitters (336+ 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. Fermín, José in signal, the comp in amber.

STL · bats R · 385 PA

Ranked comps for Fermín, José

#PlayerSimilarityAgrees onDiffers onOpen
01 Hicks, Liam MIA · L · 567 PA 0.68 Whiff ratexwOBA on contactMax exit velocity Swing length -1.3zIn-zone contact +1.1zSprint speed -1.1z Player Projection Swing lab
02 Schanuel, Nolan LAA · L · 463 PA 0.68 Pull rateBarrel rateStrikeout rate Swing length -1.2zSweet-spot rate +1.1zSprint speed -1.1z Player Projection Swing lab
03 Lee, Jung Hoo SF · L · 592 PA 0.67 Fly-ball rateWhiff rateHard-hit rate Chase rate +1.2zPull rate -1.1zOppo rate +1.0z Player Projection Swing lab
04 Loftin, Nick KC · R · 446 PA 0.67 Ground-ball ratexwOBA on contactAvg exit velocity Fly-ball rate +1.4zWhiff rate +1.0zSweet-spot rate +0.9z Player Projection Swing lab
05 Perdomo, Geraldo AZ · L · 691 PA 0.66 Strikeout rateWhiff rateAvg exit velocity Walk rate +2.3zSwing length -1.3zSweet-spot rate +1.0z Player Projection Swing lab
06 McNeil, Jeff ATH · L · 529 PA 0.64 Isolated powerAvg exit velocityBarrel rate Chase rate +2.1zOppo rate +1.2zSweet-spot rate +1.2z Player Projection Swing lab
07 Rocchio, Brayan CLE · L · 606 PA 0.64 Hard-hit rateMax exit velocityAvg exit velocity Chase rate +1.7zWhiff rate +1.6zIn-zone contact -1.0z Player Projection Swing lab
08 Palacios, Richie TB · L · 405 PA 0.61 Sweet-spot rateHard-hit rateAvg exit velocity Chase rate +1.6zWalk rate +1.4zWhiff rate +1.3z Player Projection Swing lab
09 Durbin, Caleb BOS · R · 607 PA 0.61 Strikeout rateBarrel ratexwOBA on contact Avg exit velocity -1.5zGround-ball rate +1.4zSwing length -1.0z Player Projection Swing lab
10 Vargas, Ildemaro AZ · L · 506 PA 0.59 Sprint speedOppo rateIn-zone contact Chase rate +2.6zBat speed +1.0zWalk rate -0.8z Player Projection Swing lab
11 Ramírez, José CLE · L · 559 PA 0.57 Strikeout rateIn-zone contactSwing length Bat speed +1.1zAvg exit velocity +1.1zWalk rate +1.1z Player Projection Swing lab
12 Gilbert, Drew SF · L · 407 PA 0.57 Avg exit velocitySwing lengthPull rate Whiff rate +1.5zSweet-spot rate +1.2zxwOBA on contact +1.2z 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.