10
HRs allowed
11.6%
HR rate (pool)
17.6%
Overall HR/FB
4.26
FIP
3.91
xFIP
+0.35
FIP − xFIP gap
Leak meter
STINGY
LEAKY
80
season HR/FB pctile vs MLB pitchers — higher = more HR-prone
Tonight's read
vulnerability percentile · model flags
no model flags today
Vulnerability 80th pctile (season HR/FB pctile vs MLB pitchers)
Where he leaks
quality of contact allowed · season
Barrel% allowed
17.4%
Hard-Hit% allowed
79.2%
Fly-ball rate
—
avg HR 100.5 EV · 372 ft
max EV allowed 113.4
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 · 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 Kai-Wei Teng.
Arsenal ledger
per-pitch damage against · season
PitchUseEVLAHRRV/100Damage
Sweeper Breaking
35.7%
80.5
18.8°
3
-0.3
Fastball Hard
27.8%
85.0
31.5°
4
+0.9
Sinker Hard
15.5%
84.4
16.8°
1
+0.5
Changeup Offspeed
9.9%
81.4
5.0°
1
+3.0
Curveball Breaking
9.4%
84.4
1.6°
1
+1.5
Slider Breaking
1.7%
85.2
26.5°
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 matchups86
HRs allowed (pool)10
Pool HR rate11.6%
Pool HR/game day1.0
Top-15 matchups8
HRs to top-150
Overall HR/FB17.6% 80
HR/9—
FIP4.26 59
xFIP3.91
FIP − xFIP+0.35 69
Barrel% allowed17.4%
Hard-Hit% allowed79.2%
FB%—
K/9—
BB/9—
WHIP—
IP—
Pool = tracked matchup population · pctile chips = MLB-wide percentile (hot ≥ 85) · as of 2026-08-31
Sweeper
Breaking · 35.7% usage
-0.3
run value against / 100 pitches
Avg EV against80.5 mph
Avg launch angle18.8°
HRs allowed3
Pitches435
Fastball
Hard · 27.8% usage
+0.9
run value against / 100 pitches
Avg EV against85.0 mph
Avg launch angle31.5°
HRs allowed4
Pitches338
Sinker
Hard · 15.5% usage
+0.5
run value against / 100 pitches
Avg EV against84.4 mph
Avg launch angle16.8°
HRs allowed1
Pitches189
Changeup
Offspeed · 9.9% usage
+3.0
run value against / 100 pitches
Avg EV against81.4 mph
Avg launch angle5.0°
HRs allowed1
Pitches120
Curveball
Breaking · 9.4% usage
+1.5
run value against / 100 pitches
Avg EV against84.4 mph
Avg launch angle1.6°
HRs allowed1
Pitches114
Slider
Breaking · 1.7% usage
+0.6
run value against / 100 pitches
Avg EV against85.2 mph
Avg launch angle26.5°
HRs allowed0
Pitches21
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 Kai-Wei Teng.
BvP under 20 PA is noise — use it for pitch-mix memory, not projection. Context only: not part of the model score.
HR Log
10 allowed · scored pool
avg 100.5 EV · 372 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 10 scored game days · pool
DateStadiumMatchupsHRMax EV
2026-06-27
9
2
109.8
2026-06-21
8
0
103.9
2026-06-15
9
3
108.8
2026-06-09
7
0
113.4
2026-06-04
8
1
110.4
2026-05-29
9
2
107.1
2026-05-23
9
0
103.4
2026-05-16
9
0
104.4
2026-05-10
9
1
110.1
2026-04-28
9
1
111.4
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 — Kai-Wei Teng isn't on a scored slate with park & weather inputs.
Fences vs his leak
wall distance · damage overlay
Kai-Wei Teng isn't on a scored slate — no park to compare his damage against.
Venue splits
HRs allowed by venue · pool
VenueFacedHRRate
43
6
14%
9
2
22%
9
1
11%
9
1
11%
9
0
0%
7
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 Kai-Wei Teng
How many home runs has Kai-Wei Teng allowed this season?
Kai-Wei Teng has allowed 10 home runs across 10 scored game days in the TheHomeRuns pool this season.
Which batters have homered off Kai-Wei Teng?
In the TheHomeRuns scored pool, the batters with home runs against Kai-Wei Teng include Pete Alonso (2), Colt Keith (1), David Hamilton (1) and 11 more.
Model output for entertainment and research. Not gambling advice.