0
HRs allowed
0.0%
HR rate (pool)
11.1%
Overall HR/FB
4.96
FIP
5.23
xFIP
-0.27
FIP − xFIP gap
Leak meter
STINGY
LEAKY
34
season HR/FB pctile vs MLB pitchers — higher = more HR-prone
Tonight's read
vulnerability percentile · model flags
no model flags today
Vulnerability 34th pctile (season HR/FB pctile vs MLB pitchers)
Where he leaks
quality of contact allowed · season
Barrel% allowed
0.0%
Hard-Hit% allowed
22.2%
Fly-ball rate
—
max EV allowed 103.3
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.
7D · 0 HR
15D · 0 HR
30D · 0 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 Juan Mejia.
Arsenal ledger
per-pitch damage against · season
PitchUseEVLAHRRV/100Damage
Fastball Hard
53.6%
83.0
18.1°
2
+0.6
Sweeper Breaking
36.0%
82.8
19.2°
3
+0.2
Sinker Hard
5.6%
80.4
15.0°
0
-3.8
Changeup Offspeed
2.5%
84.9
29.1°
0
+0.9
Slider Breaking
2.3%
78.5
30.8°
0
-0.2
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 matchups9
HRs allowed (pool)0
Pool HR rate0.0%
Pool HR/game day0.0
Top-15 matchups1
HRs to top-150
Overall HR/FB11.1% 34
HR/9—
FIP4.96 81
xFIP5.23
FIP − xFIP-0.27 28
Barrel% allowed0.0%
Hard-Hit% allowed22.2%
FB%—
K/9—
BB/9—
WHIP—
IP—
Pool = tracked matchup population · pctile chips = MLB-wide percentile (hot ≥ 85) · as of 2026-09-01
Fastball
Hard · 53.6% usage
+0.6
run value against / 100 pitches
Avg EV against83.0 mph
Avg launch angle18.1°
HRs allowed2
Pitches573
Sweeper
Breaking · 36.0% usage
+0.2
run value against / 100 pitches
Avg EV against82.8 mph
Avg launch angle19.2°
HRs allowed3
Pitches385
Sinker
Hard · 5.6% usage
-3.8
run value against / 100 pitches
Avg EV against80.4 mph
Avg launch angle15.0°
HRs allowed0
Pitches60
Changeup
Offspeed · 2.5% usage
+0.9
run value against / 100 pitches
Avg EV against84.9 mph
Avg launch angle29.1°
HRs allowed0
Pitches27
Slider
Breaking · 2.3% usage
-0.2
run value against / 100 pitches
Avg EV against78.5 mph
Avg launch angle30.8°
HRs allowed0
Pitches25
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 Juan Mejia.
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 1 scored game days · pool
DateStadiumMatchupsHRMax EV
2026-04-16
9
0
103.3
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 — Juan Mejia isn't on a scored slate with park & weather inputs.
Fences vs his leak
wall distance · damage overlay
Juan Mejia isn't on a scored slate — no park to compare his damage against.
Venue splits
HRs allowed by venue · pool
VenueFacedHRRate
9
0
0%
HRs allowed ÷ scored matchups at each park. Rate is per scored matchup, not HR/9 — box-score innings aren't tracked.
Common questions about Juan Mejia
How many home runs has Juan Mejia allowed this season?
Juan Mejia has allowed 0 home runs across 1 scored game day in the TheHomeRuns pool this season.
Model output for entertainment and research. Not gambling advice.