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S
RP#56LADAdvanced data
Seth Halvorsen
Relief pitcher
6' 2" · 243 lbs · 26 yo
Today · vs KC
Kansas City Royals
KC @ LAD
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Statcast · 2026 season
The advanced layer
Expected stats, sabermetric context, and rate metrics straight from the MLB Stats API. Each bar is calibrated against league benchmark ranges, not season percentiles — so the position is stable even on a small sample.
PITCHING
Run prevention
21 G · 0 GS · 19 IP
Run prevention
ERA4.74
5.502.50
FIP5.72
5.003.00
xFIP5.19
5.003.00
WHIP1.95
1.551.00
Stuff & control
K/98.1
6.012.0
BB/97.1
4.52.0
HR/91.42
1.600.70
K%17.7%
18.0%30.0%
BB%15.6%
11.0%5.0%
Quality of contact
BABIP—
.270.330
GO/AO0.83
0.801.60
Pitch mix
Arsenal
2026 · 345 pitches
PitchUseWhiffRV/100
- 4-Seam Fastball63%13%-2.7
- Slider29%43%+0.3
RV/100 is pitcher-side — negative is a pitch that saved runs.
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