26
HRs allowed
18.8%
HR rate (pool)
17.6%
Overall HR/FB
4.08
FIP
3.81
xFIP
+0.27
FIP − xFIP gap
Leak meter
STINGY
LEAKY
78
season HR/FB pctile vs MLB pitchers — higher = more HR-prone
Tonight's read
vulnerability percentile · model flags
no model flags today
Vulnerability 78th pctile (season HR/FB pctile vs MLB pitchers)
Where he leaks
quality of contact allowed · season
Barrel% allowed
21.7%
Hard-Hit% allowed
67.4%
Fly-ball rate
—
avg HR 104.1 EV · 409 ft
max EV allowed 111.4
Batted-ball xSLG splits and HR spray direction aren't tracked for pitchers yet.
Recent form
HR allowed by scored game day
7D · 4 HR ↑
15D · 5 HR
30D · 8 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 Ian Seymour.
Arsenal ledger
per-pitch damage against · season
PitchUseEVLAHRRV/100Damage
Changeup Offspeed
28.3%
79.4
16.3°
8
-0.4
Fastball Hard
27.3%
82.0
32.3°
5
-0.4
Sweeper Breaking
19.7%
78.4
35.1°
7
-0.0
Sinker Hard
17.2%
79.5
15.0°
4
-1.1
Slider Breaking
6.3%
78.0
23.4°
2
+0.7
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 matchups138
HRs allowed (pool)26
Pool HR rate18.8%
Pool HR/game day1.62
Top-15 matchups8
HRs to top-153
Overall HR/FB17.6% 78
HR/9—
FIP4.08 51
xFIP3.81
FIP − xFIP+0.27 65
Barrel% allowed21.7%
Hard-Hit% allowed67.4%
FB%—
K/9—
BB/9—
WHIP—
IP—
Pool = tracked matchup population · pctile chips = MLB-wide percentile (hot ≥ 85) · as of 2026-10-17
Changeup
Offspeed · 28.3% usage
-0.4
run value against / 100 pitches
Avg EV against79.4 mph
Avg launch angle16.3°
HRs allowed8
Pitches630
Fastball
Hard · 27.3% usage
-0.4
run value against / 100 pitches
Avg EV against82.0 mph
Avg launch angle32.3°
HRs allowed5
Pitches608
Sweeper
Breaking · 19.7% usage
-0.0
run value against / 100 pitches
Avg EV against78.4 mph
Avg launch angle35.1°
HRs allowed7
Pitches439
Sinker
Hard · 17.2% usage
-1.1
run value against / 100 pitches
Avg EV against79.5 mph
Avg launch angle15.0°
HRs allowed4
Pitches382
Slider
Breaking · 6.3% usage
+0.7
run value against / 100 pitches
Avg EV against78.0 mph
Avg launch angle23.4°
HRs allowed2
Pitches140
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 Ian Seymour.
BvP under 20 PA is noise — use it for pitch-mix memory, not projection. Context only: not part of the model score.
HR Log
26 allowed · scored pool
avg 104.1 EV · 409 ft
8 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
2026-09-24
9
2
110.2
2026-09-18
9
2
110.9
2026-09-12
9
1
107.2
2026-09-06
9
2
108.6
2026-08-31
9
1
102.7
2026-08-20
8
2
107.3
2026-08-15
8
2
107.4
2026-08-09
9
0
111.4
2026-08-03
9
2
106.2
2026-07-18
9
2
108.5
2026-07-12
7
2
103.2
2026-07-07
8
1
105.3
2026-07-02
8
2
106.7
2026-06-20
9
2
110.9
2026-06-08
9
1
106.3
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 — Ian Seymour isn't on a scored slate with park & weather inputs.
Fences vs his leak
wall distance · damage overlay
Ian Seymour isn't on a scored slate — no park to compare his damage against.
Venue splits
HRs allowed by venue · pool
VenueFacedHRRate
85
16
19%
9
2
22%
9
2
22%
9
2
22%
9
2
22%
8
2
25%
HRs allowed ÷ scored matchups at each park · top 6 of 7. Rate is per scored matchup, not HR/9 — box-score innings aren't tracked.
Common questions about Ian Seymour
How many home runs has Ian Seymour allowed this season?
Ian Seymour has allowed 26 home runs across 16 scored game days in the TheHomeRuns pool this season.
Which batters have homered off Ian Seymour?
In the TheHomeRuns scored pool, the batters with home runs against Ian Seymour include Jahmai Jones (2), Addison Barger (1), Alejandro Kirk (1) and 25 more.
Model output for entertainment and research. Not gambling advice.