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
| # | Player | Similarity | Agrees on | Differs on | Open |
|---|---|---|---|---|---|
| 01 | Schanuel, Nolan LAA · L · 463 PA | 0.68 | Isolated powerStrikeout rateBarrel rate | Swing length -1.2zSprint speed -1.1zSweet-spot rate +1.1z | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 10 | Vargas, Ildemaro AZ · L · 504 PA | 0.59 | Oppo rateSprint speedSwing length | Chase rate +2.5zBat speed +1.0zWalk rate -0.8z | Player Projection Swing lab |
| 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 | Player Projection Swing lab |
| 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 | 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.