37
HRs allowed
16.2%
HR rate (pool)
18.4%
Overall HR/FB
5.17
FIP
4.47
xFIP
+0.70
FIP − xFIP gap
Leak meter
STINGY
LEAKY
81
season HR/FB pctile vs MLB pitchers — higher = more HR-prone
Tonight's read
vulnerability percentile · model flags
Susceptible
Vulnerability 81th pctile (season HR/FB pctile vs MLB pitchers)
Where he leaks
quality of contact allowed · season
Barrel% allowed
21.0%
Hard-Hit% allowed
72.6%
Fly-ball rate
—
avg HR 102.5 EV · 398 ft
max EV allowed 112.7
Batted-ball xSLG splits and HR spray direction aren't tracked for pitchers yet.
Recent form
HR allowed by scored game day
7D · 2 HR
15D · 2 HR
30D · 4 HR
Dot size = HRs allowed that game day · scored pool only.
Threat Matrix
tonight's lineup × his arsenal families
No lineup yet — the Threat Matrix fills in when today's slate lists batters against Jeffrey Springs.
Arsenal ledger
per-pitch damage against · season
PitchUseEVLAHRRV/100Damage
Fastball Hard
43.2%
83.6
30.2°
14
+1.4
Changeup Offspeed
25.0%
76.5
11.6°
7
+0.7
Slider Breaking
21.7%
84.2
21.5°
12
+1.5
Sweeper Breaking
5.9%
78.0
20.3°
2
+1.2
Cutter Hard
4.3%
79.8
19.1°
0
+0.6
RV/100 = run value against per 100 pitches — higher = more damage allowed. Damage bar is scaled across his own arsenal.
Full ledger
pool + season datapoints · pctile-chipped where ranked
Pool matchups229
HRs allowed (pool)37
Pool HR rate16.2%
Pool HR/game day1.32
Top-15 matchups30
HRs to top-155
Overall HR/FB18.4% 81
HR/9—
FIP5.17 86
xFIP4.47
FIP − xFIP+0.70 83
Barrel% allowed21.0%
Hard-Hit% allowed72.6%
FB%—
K/9—
BB/9—
WHIP—
IP—
Pool = tracked matchup population · pctile chips = MLB-wide percentile (hot ≥ 85) · as of 2026-10-17
Fastball
Hard · 43.2% usage
+1.4
run value against / 100 pitches
Avg EV against83.6 mph
Avg launch angle30.2°
HRs allowed14
Pitches1077
Changeup
Offspeed · 25.0% usage
+0.7
run value against / 100 pitches
Avg EV against76.5 mph
Avg launch angle11.6°
HRs allowed7
Pitches624
Slider
Breaking · 21.7% usage
+1.5
run value against / 100 pitches
Avg EV against84.2 mph
Avg launch angle21.5°
HRs allowed12
Pitches541
Sweeper
Breaking · 5.9% usage
+1.2
run value against / 100 pitches
Avg EV against78.0 mph
Avg launch angle20.3°
HRs allowed2
Pitches146
Cutter
Hard · 4.3% usage
+0.6
run value against / 100 pitches
Avg EV against79.8 mph
Avg launch angle19.1°
HRs allowed0
Pitches107
Usage by handedness
what tonight's lefties/righties will see
Per-handedness pitch usage isn't tracked yet — the arsenal cache is a season aggregate.
Zone map
damage by location
Per-zone damage isn't tracked yet for pitchers.
Pitcher vs. Batter
career PA vs tonight's listed order
No listed order yet — BvP rows appear when today's slate lists batters against Jeffrey Springs.
BvP under 20 PA is noise — use it for pitch-mix memory, not projection. Context only: not part of the model score.
HR Log
37 allowed · scored pool
avg 102.5 EV · 398 ft
4 in last 30D
DateBatterRankScoreStadiumEVLADist
Every row is a scored-pool matchup — HRs to unscored batters aren't tracked. Pitch type, count, and field direction aren't in the pool log yet.
Game-day log
last 15 scored game days · pool
DateStadiumMatchupsHRMax EV
2026-09-23
6
2
108.4
2026-09-17
9
0
102.9
2026-09-11
7
0
110.3
2026-09-05
7
0
106.0
2026-08-30
8
2
108.5
2026-08-24
8
0
109.6
2026-08-19
9
1
110.3
2026-07-31
8
2
103.0
2026-07-26
9
0
107.9
2026-07-20
7
1
110.9
2026-07-08
8
1
105.2
2026-06-30
8
0
107.0
2026-06-25
7
1
107.0
2026-06-19
6
3
108.7
2026-06-14
8
4
112.7
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
park factor · wind · temp
Ballpark conditions unavailable — Jeffrey Springs isn't on a scored slate with park & weather inputs.
Fences vs his leak
wall distance · damage overlay
Jeffrey Springs isn't on a scored slate — no park to compare his damage against.
Venue splits
HRs allowed by venue · pool
VenueFacedHRRate
103
18
17%
17
7
41%
9
3
33%
9
2
22%
9
1
11%
9
1
11%
HRs allowed ÷ scored matchups at each park · top 6 of 15. Rate is per scored matchup, not HR/9 — box-score innings aren't tracked.
Common questions about Jeffrey Springs
How many home runs has Jeffrey Springs allowed this season?
Jeffrey Springs has allowed 37 home runs across 28 scored game days in the TheHomeRuns pool this season.
Which batters have homered off Jeffrey Springs?
In the TheHomeRuns scored pool, the batters with home runs against Jeffrey Springs include Addison Barger (2), Angel Martinez (2), Brandon Lowe (2) and 53 more.
Model output for entertainment and research. Not gambling advice.