The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 257 qualified hitters (334+ 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 · 384 PA

Ranked comps for Fermín, José

#PlayerSimilarityAgrees onDiffers onOpen
01 Schanuel, Nolan LAA · L · 463 PA 0.68 Isolated powerStrikeout rateBarrel rate Swing length -1.2zSprint speed -1.1zSweet-spot rate +1.1z
02 Lee, Jung Hoo SF · L · 592 PA 0.68 Fly-ball rateWhiff rateHard-hit rate Chase rate +1.2zPull rate -1.0zOppo rate +1.0z
03 Loftin, Nick KC · R · 446 PA 0.68 xwOBA on contactGround-ball rateAvg exit velocity Fly-ball rate +1.4zWhiff rate +1.0zSweet-spot rate +0.9z
04 Perdomo, Geraldo AZ · L · 686 PA 0.67 Strikeout rateAvg exit velocityWhiff rate Walk rate +2.2zSwing length -1.3zSweet-spot rate +1.0z
05 Hicks, Liam MIA · L · 561 PA 0.67 Whiff ratexwOBA on contactMax exit velocity Swing length -1.2zIn-zone contact +1.1zSprint speed -1.1z
06 Rocchio, Brayan CLE · L · 602 PA 0.65 Hard-hit rateAvg exit velocityMax exit velocity Chase rate +1.7zWhiff rate +1.6zIn-zone contact -1.0z
07 McNeil, Jeff ATH · L · 526 PA 0.63 Isolated powerAvg exit velocityBarrel rate Chase rate +2.1zOppo rate +1.3zSweet-spot rate +1.2z
08 Palacios, Richie TB · L · 400 PA 0.61 Sweet-spot rateHard-hit rateAvg exit velocity Chase rate +1.6zWhiff rate +1.3zWalk rate +1.3z
09 Durbin, Caleb BOS · R · 607 PA 0.61 Strikeout rateBarrel rateBat speed Avg exit velocity -1.5zGround-ball rate +1.4zSwing length -1.0z
10 Vargas, Ildemaro AZ · L · 504 PA 0.59 Oppo rateSprint speedSwing length Chase rate +2.5zBat speed +1.0zWalk rate -0.8z
11 Gilbert, Drew SF · L · 406 PA 0.58 Avg exit velocitySwing lengthPull rate Whiff rate +1.5zxwOBA on contact +1.2zSweet-spot rate +1.1z
12 Ramírez, José CLE · L · 554 PA 0.57 Strikeout rateIn-zone contactSwing length Bat speed +1.1zWalk rate +1.1zAvg exit velocity +1.1z

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.