The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 259 qualified hitters (288+ 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 · 567 PA

Ranked comps for Rumfield, TJ

#PlayerSimilarityAgrees onDiffers onOpen
01 Smith, Dominic ATL · L · 302 PA 0.73 Ground-ball rateChase ratexwOBA on contact Avg exit velocity +1.2zWalk rate -1.2zSwing length +0.9z
02 Horwitz, Spencer PIT · L · 400 PA 0.65 In-zone contactGround-ball ratePull rate Sweet-spot rate -2.0zSwing length +1.1zAvg exit velocity +1.0z
03 Hicks, Liam MIA · L · 506 PA 0.63 Hard-hit rateBarrel rateIsolated power Sweet-spot rate -2.0zWhiff rate -1.2zIn-zone contact +1.0z
04 Loftin, Nick KC · R · 374 PA 0.63 Pull rateHard-hit rateIsolated power Sprint speed +2.5zSwing length +1.4zChase rate -0.8z
05 Perdomo, Geraldo AZ · L · 594 PA 0.60 In-zone contactSweet-spot rateMax exit velocity Sprint speed +1.6zChase rate -1.6zWhiff rate -1.1z
06 Kelly, Carson CHC · R · 381 PA 0.59 Isolated powerWhiff ratexwOBA on contact Sweet-spot rate -1.4zPull rate -1.1zAvg exit velocity +1.1z
07 Schanuel, Nolan LAA · L · 463 PA 0.58 Strikeout rateIn-zone contactBat speed Fly-ball rate -1.4zOppo rate -1.4zMax exit velocity -1.3z
08 Rutschman, Adley BAL · L · 358 PA 0.56 Max exit velocityGround-ball rateFly-ball rate Hard-hit rate +1.6zAvg exit velocity +1.6zSwing length +1.2z
09 Monasterio, Andruw BOS · R · 332 PA 0.56 Whiff rateIsolated powerxwOBA on contact Sprint speed +1.7zWalk rate -1.3zPull rate -1.2z
10 Lee, Brooks MIN · L · 554 PA 0.56 Barrel rateWhiff rateGround-ball rate Walk rate -1.7zSweet-spot rate -1.6zAvg exit velocity +1.3z
11 Bregman, Alex CHC · R · 631 PA 0.56 xwOBA on contactFly-ball rateWalk rate Avg exit velocity +1.5zHard-hit rate +1.3zSwing length +1.2z
12 Marsee, Jakob MIA · L · 535 PA 0.55 In-zone contactBat speedWhiff rate Sprint speed +2.3zChase rate -1.4zStrikeout rate +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.