Zac Gallen
SPQualifiedArizona Diamondbacks · NL · Age 30 · Bats R / Throws R · 98.0 IP · 440 BF
↓ Negative regressionSELLRank 22 of 617 pitchers by opportunity score
Opportunity Score
38
−1.3 last 7 days
SELLThe results are ahead of the process — k% vs baseline: 13.9 actual vs 21.5 deserved.
No diagnostic pattern fires — the profile is stable year over year.
W-L
3-9
SV
0
IP
98.0
K
61
BB
31
ERA
6.34
WHIP
1.56
Edge breakdown
Expected
What the batted-ball quality deserves
xERA6.53
xwOBA.383
xBA.313
xSLG.531
xBABIP.281
Actual
What the scoreboard says
ERA6.34
wOBA.372
BA.304
SLG.506
BABIP.281
Difference
Actual − expected · percentile of the gap
ERA vs xERA−0.1946
wOBA against vs xwOBA−.01135
BA against vs xBA−.00937
SLG against vs xSLG−.02528
BABIP against vs xBABIP+.00050
Arsenal & pitch shapes
2026 usage, velocity, and movement per pitch · dashed ring = league average for that pitch type · movement in inches, pitcher's perspective
| Pitch | Usage | Velo | vs 2025 | Velo pctl | Spin | IVB | HB |
|---|---|---|---|---|---|---|---|
| 4-Seam Fastball | 37.0%(−8.0) | 93.4lg 94.5 | −0.1 | 2984 | 2311 | 16.6"lg 15.4 | 3.3"lg 7.8 |
| Slider | 21.6%(+8.6) | 88.7lg 86.2 | ±0.0 | 8444 | 2351 | 4.2"lg 1.5 | 4.5"lg 4.1 |
| Curveball | 18.6%(−4.9) | 81.6lg 80.3 | +0.5 | 6187 | 2433 | -9.9"lg -10.3 | 4.0"lg 8.8 |
| Changeup | 17.6%(+1.6) | 86.6lg 86.6 | +0.3 | 4805 | 1542 | 4.3"lg 4.1 | 12.7"lg 14.0 |
| Sinker | 5.3%(+2.8) | 92.8lg 94.0 | −0.4 | 2954 | 2186 | 13.7"lg 8.4 | 10.9"lg 15.0 |
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.
Mechanics Watch
2026 in gold · 2025 dashed · thin ticks = league average
Arm slot
72 pctl · +1.5° 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).
Recent games
Percentile rankings
xERA
8
xwOBA Against
8
K%
6
BB%
80
Whiff%
9
FB Velocity
32
Hard-Hit% Against
15
Spin Rate
55
30-day rolling trends
Rolling ERA vs xERA
ERAxERA
Rolling Hard-Hit% Against
Rolling FB Velocity
Rolling Stuff Index
Rolling Whiff%