2
HRs allowed
12.5%
HR rate (pool)
15.3%
Overall HR/FB
4.08
FIP
3.82
xFIP
+0.26
FIP − xFIP gap
Leak meter
STINGY
LEAKY
69
season HR/FB pctile vs MLB pitchers — higher = more HR-prone
Tonight's read
vulnerability percentile · model flags
no model flags today
Vulnerability 69th pctile (season HR/FB pctile vs MLB pitchers)
Where he leaks
quality of contact allowed · season
Barrel% allowed
0.0%
Hard-Hit% allowed
75.0%
Fly-ball rate
—
avg HR 108.8 EV · 410 ft
max EV allowed 110.9
Batted-ball xSLG splits and HR spray direction aren't tracked for pitchers yet.
Recent form
HR allowed by scored game day
7D · 1 HR
15D · 2 HR
30D · 2 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 Ryan Rolison.
Arsenal ledger
per-pitch damage against · season
PitchUseEVLAHRRV/100Damage
Fastball Hard
42.0%
84.5
20.2°
3
-0.7
Curveball Breaking
17.8%
82.5
3.0°
1
-0.0
Slider Breaking
16.5%
82.0
11.1°
0
+0.1
Sweeper Breaking
13.2%
79.4
17.2°
0
-1.9
Sinker Hard
9.1%
73.7
8.8°
0
-5.0
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 matchups16
HRs allowed (pool)2
Pool HR rate12.5%
Pool HR/game day1.0
Top-15 matchups0
HRs to top-150
Overall HR/FB15.3% 69
HR/9—
FIP4.08 51
xFIP3.82
FIP − xFIP+0.26 62
Barrel% allowed0.0%
Hard-Hit% allowed75.0%
FB%—
K/9—
BB/9—
WHIP—
IP—
Pool = tracked matchup population · pctile chips = MLB-wide percentile (hot ≥ 85) · as of 2026-08-08
Fastball
Hard · 42.0% usage
-0.7
run value against / 100 pitches
Avg EV against84.5 mph
Avg launch angle20.2°
HRs allowed3
Pitches290
Curveball
Breaking · 17.8% usage
-0.0
run value against / 100 pitches
Avg EV against82.5 mph
Avg launch angle3.0°
HRs allowed1
Pitches123
Slider
Breaking · 16.5% usage
+0.1
run value against / 100 pitches
Avg EV against82.0 mph
Avg launch angle11.1°
HRs allowed0
Pitches114
Sweeper
Breaking · 13.2% usage
-1.9
run value against / 100 pitches
Avg EV against79.4 mph
Avg launch angle17.2°
HRs allowed0
Pitches91
Sinker
Hard · 9.1% usage
-5.0
run value against / 100 pitches
Avg EV against73.7 mph
Avg launch angle8.8°
HRs allowed0
Pitches63
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 Ryan Rolison.
BvP under 20 PA is noise — use it for pitch-mix memory, not projection. Context only: not part of the model score.
HR Log
2 allowed · scored pool
avg 108.8 EV · 410 ft
2 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 2 scored game days · pool
DateStadiumMatchupsHRMax EV
2026-06-28
8
1
110.9
2026-06-14
8
1
106.8
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 — Ryan Rolison isn't on a scored slate with park & weather inputs.
Fences vs his leak
wall distance · damage overlay
Ryan Rolison isn't on a scored slate — no park to compare his damage against.
Venue splits
HRs allowed by venue · pool
VenueFacedHRRate
8
1
12%
8
1
12%
HRs allowed ÷ scored matchups at each park. Rate is per scored matchup, not HR/9 — box-score innings aren't tracked.