Kyle Backhus
RPPhiladelphia Phillies · NL · Age 28 · Bats L / Throws L · 15.3 IP · 72 BF
Most likely driver: era overstates the problem — results behind the process (23% confidence).Mechanical flag: arm angle −3.9°.
Edge breakdown
| Pitch | Usage | Velo | vs 2025 | Velo pctl | Spin | IVB | HB |
|---|---|---|---|---|---|---|---|
| Sinker | 54.4%(−9.1) | 90.8lg 94.0 | −0.2 | 854 | 2180 | —lg 8.4 | —lg 15.0 |
| Sweeper | 35.8%(+8.8) | 78.4lg 82.5 | ±0.0 | 759 | 2117 | —lg 0.9 | —lg 13.7 |
| Changeup | 9.8%(+0.3) | 80.9lg 86.6 | +2.6 | 634 | 1633 | —lg 4.1 | —lg 14.0 |
IVB = induced vertical break (rise vs gravity-only). HB = horizontal break. Velo percentile is against all pitchers throwing the same pitch type. Sources: Savant pitch arsenals & movement leaderboards.
No movement data for this arsenal (below the pitch-count minimum).
Arm slot
1 pctl · −3.9° vs prior
What this can't see: Joint kinetics, hip-shoulder separation, and kinematic sequencing (Hawkeye/KinaTrax, team-internal — never estimated here). Stance angle and foot separation (Savant visuals only, no export). Release extension (column exported empty; needs pitch-level ingest).