Roster player dossier · Almanac edition
Pittsburgh Pirates · bats L
Mason Montgomery.
Season production, recent form, handedness splits, and role context. Descriptive only—no live recommendation is shown here.
MLB.com profile ↗What matters now
PRO DECISION CONTEXT LOCKED
Public stats remain descriptive. Live probability, price, Action Window, and Decision state are available only after the Pro access check.
No valid movement comparison is available, so Posterior is not inferring one from a small or missing sample.
Completed performance and hot form remain supporting evidence; neither creates a Posterior Decision on its own.
00 / Public almanac
Season stats and recent form · descriptive, not predictive.
2026 pitching line
Run prevention and workload.
IP
38.0
2026 innings
ERA
4.03
earned runs
WHIP
1.29
walks plus hits
FIP
2.97
fielding independent
K/9
13.3
strikeouts per nine
BB/9
4.3
walks per nine
K / BB
56 / 18
strikeouts / walks
HR
4
home runs allowed
BF
162
batters faced
Savant and arsenal
Expected contact, splits, and pitch shape.
xERA
00.2 / Career lines
Season-by-season record · descriptive, not predictive.
Pitching · 3 seasons
MLB regular season
| Season | Tm | G | GS | IP | ERA | WHIP | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|
| 2026 | PIT | 48 | 5 | 47.0 | 3.64 | 1.17 | 14.36 | 4.02 |
| 2025 | TB | 57 |
00.3 / Last 12
Current performance across roughly four series · descriptive, not predictive.
Pitching · last 12 games
| Date | Opp | IP | H | R | ER | BB | K |
|---|---|---|---|---|---|---|---|
| 8/9 | vs NYM | 1.0 | 0 | 0 | 0 | 0 | 3 |
| 8/3 | @ MIL | 1.0 | 1 | 0 | 0 | 0 | 3 |
00.4 / Statcast card
Season percentile ranks vs. the qualified MLB pool · descriptive, not predictive.
Statcast season card · 2026 · Pitching
Elite run prevention with a heavy swing-and-miss profile.
Posterior percentiles vs. qualified MLB pool · Statcast window Apr 24 – Aug 7 · context only
Expected run prevention
xERA
90
2.82
Contact allowed
Barrel %
72
9.2%
Hard-Hit %
37
22.3%
Avg. Exit Velo
00.5 / Statcast form
Nightly Statcast trends · descriptive, not predictive.
Statcast form is still gathering a sufficient recent sample. No thin reads are shown.
01 / Pro decision context
Live prediction and price fields remain locked.
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