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MLBPlayer profile/PIT
RP#46PITAdvanced data
Mason Montgomery
Relief pitcher
6' 2" · 205 lbs · 26 yo
Form Line · next game · as of Jul 31
1.7K▲ +0.2vs pace (1.5)
typical range (~68%) 1–2 · on 45 games
ER0.3-0.1
The One's forward projection vs the player's own season pace — not a grade, not accuracy-tested. What is Form Line?
Final · @ CIN
Cincinnati Reds
PIT @ CIN
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Statcast fingerprint
Mason Montgomery
MLB percentile · n=406
- xwOBA88
- xBA93
- xSLG88
- Barrel %23
- Hard-hit %28
- Exit velo74
- Whiff %85
- Chase %57
- K %99
- BB %21
Elite strikeout rate (99th pct) — walks (21st pct) the soft spot.
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
46 G · 5 GS · 45 IP
Run prevention
ERA3.80
5.502.50
FIP2.86
5.003.00
xFIP2.49
5.003.00
WHIP1.20
1.551.00
Stuff & control
K/913.8
6.012.0
BB/94.2
4.52.0
HR/91.00
1.600.70
K%36.3%
18.0%30.0%
BB%11.1%
11.0%5.0%
Quality of contact
BABIP—
.270.330
GO/AO1.68
0.801.60
Pitch mix
Arsenal
2026 · 756 pitches
PitchUseWhiffRV/100
- 4-Seam Fastball56%29%+0.8
- Slider17%36%+3.1
- Curveball14%35%-3.2
- Sinker9%31%+1.9
RV/100 is pitcher-side — negative is a pitch that saved runs.
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