0
HRs allowed
0%
HR rate (pool)
21.6%
Overall HR/FB
5.96
FIP
4.37
xFIP
#1
Leakiest SP today (of 26, by FIP−xFIP)
Leak meter
STINGY
LEAKY
89
season HR/FB pctile vs MLB pitchers — higher = more HR-prone
Tonight's read
vulnerability percentile · model flags
no model flags today
Vulnerability 89th pctile (season HR/FB pctile vs MLB pitchers)
5 of 9 listed bats hold the platoon edge
Where he leaks
quality of contact allowed · season
Barrel% allowed
—
Hard-Hit% allowed
—
Fly-ball rate
—
Batted-ball xSLG splits and HR spray direction aren't tracked for pitchers yet.
Recent form
HR allowed by scored game day
Not enough scored game days for a trend line yet.
Dot size = HRs allowed that game day · scored pool only.
Threat Matrix
tonight's lineup × his arsenal families
Overall
Score
Neutral · 1
Long shots · 8 — below the fade line
5 of 9 listed bats hold the platoon edge.
Cells are each batter's season damage vs that family (not vs this pitcher specifically).
Arsenal ledger
per-pitch damage against · season
No arsenal data cached for this pitcher.
Full ledger
pool + season datapoints · pctile-chipped where ranked
Pool matchups0
HRs allowed (pool)0
Pool HR rate0%
Pool HR/game day—
Top-15 matchups0
HRs to top-150
Overall HR/FB21.6% 89
HR/9—
FIP5.96 94
xFIP4.37
FIP − xFIP—
Barrel% allowed—
Hard-Hit% allowed—
FB%—
K/9—
BB/9—
WHIP—
IP—
Pool = tracked matchup population · pctile chips = MLB-wide percentile (hot ≥ 85) · as of 2026-09-26
No arsenal data cached for this pitcher.
Pitcher vs. Batter
career PA vs tonight's listed order
BatterPAHHRKwOBALast damage
BvP under 20 PA is noise — use it for pitch-mix memory, not projection. Context only: not part of the model score.
HR Log
0 allowed · scored pool
No home runs allowed in our scored matchups.
Game-day log
last 0 scored game days · pool
No scored game days yet for Jack Ralston.
Box-score start lines (IP · H · ER · K · BB · pitch counts) aren't tracked yet — this is his scored-pool day log, matchups our model actually graded.
Tonight — loanDepot Park
open-air · game-window conditions
Park Factor
0.847
Wind
5 mph from NNW
Temp
87°F
Roof
Retractable
TimeWindTempFIT
4:10p
5
87°
+1
5:10p
5
86°
+1
6:10p
4
84°
+0
7:10p
3
83°
-2
8:10p
3
81°
-2
+0
Neutral alignment
park + weather FIT · batter-neutral signal
Game-window avg wind 4 mph from N
FIT = park + game-window weather HR signal, batter-neutral. Per-batter spray overlays live on each batter's profile.
Fences vs his leak
wall distance · damage overlay
LF
344ft
deep
CF
407ft
avg
RF
335ft
avg
vs LHH → RF
355ft
0 HRs allowed
vs RHH → LF
363ft
0 HRs allowed
Shortest: RF 335 ft
Fence marks are published; power-alley + pull-side depths come from the park's outfield geometry, calibrated to those marks. We don't track HR spray direction — pull side is inferred from batter handedness (LHH→RF, RHH→LF), not a measured read.
Venue splits
HRs allowed by venue · pool
No scored matchups by venue yet for Jack Ralston.
Common questions about Jack Ralston
Is Jack Ralston likely to give up a home run tonight?
Jack Ralston pitches tonight (ATL @ MIA at loanDepot Park). This season he has allowed 0 home runs across 0 scored game days. TheHomeRuns model scores every batter he faces; see the matchup table on this page for tonight's most dangerous bats. Model output, not a guarantee. Not gambling advice.
Model output for entertainment and research. Not gambling advice.