The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 258 qualified hitters (286+ 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. Rumfield, TJ in signal, the comp in amber.

COL · bats L · 563 PA

Ranked comps for Rumfield, TJ

#PlayerSimilarityAgrees onDiffers onOpen
01 Smith, Dominic ATL · L · 302 PA 0.74 Chase rateGround-ball rateBat speed Avg exit velocity +1.2zWalk rate -1.1zSwing length +0.9z
02 Horwitz, Spencer PIT · L · 400 PA 0.64 Ground-ball rateIn-zone contactSprint speed Sweet-spot rate -2.0zSwing length +1.1zAvg exit velocity +1.0z
03 Loftin, Nick KC · R · 374 PA 0.63 Hard-hit rateIsolated powerPull rate Sprint speed +2.4zSwing length +1.4zChase rate -0.8z
04 Hicks, Liam MIA · L · 502 PA 0.62 Hard-hit rateBarrel rateBat speed Sweet-spot rate -2.1zWhiff rate -1.2zIn-zone contact +1.0z
05 Perdomo, Geraldo AZ · L · 589 PA 0.58 In-zone contactMax exit velocitySweet-spot rate Chase rate -1.6zSprint speed +1.6zWalk rate +1.1z
06 Bregman, Alex CHC · R · 625 PA 0.58 xwOBA on contactWalk rateFly-ball rate Avg exit velocity +1.5zChase rate -1.3zHard-hit rate +1.2z
07 Kelly, Carson CHC · R · 375 PA 0.57 Whiff ratexwOBA on contactWalk rate Sweet-spot rate -1.5zHard-hit rate +1.2zAvg exit velocity +1.2z
08 Monasterio, Andruw BOS · R · 332 PA 0.57 Whiff rateIsolated powerxwOBA on contact Sprint speed +1.7zWalk rate -1.2zPull rate -1.1z
09 Schanuel, Nolan LAA · L · 463 PA 0.57 Strikeout rateIn-zone contactWalk rate Fly-ball rate -1.4zOppo rate -1.4zMax exit velocity -1.3z
10 Rutschman, Adley BAL · L · 358 PA 0.56 Ground-ball rateMax exit velocityFly-ball rate Hard-hit rate +1.7zAvg exit velocity +1.6zSwing length +1.2z
11 Lee, Brooks MIN · L · 549 PA 0.56 Barrel rateWhiff rateGround-ball rate Walk rate -1.6zSweet-spot rate -1.6zAvg exit velocity +1.3z
12 Palacios, Richie TB · L · 344 PA 0.54 Pull rateHard-hit rateBat speed Swing length +1.6zSprint speed +1.4zFly-ball rate -1.4z

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.