← BackJameson Taillon
CHC · RHP · 2026
82.3 IP · 370 BF · 1,439 pitches · 2026 season
HIGH Descriptive — not a forecast
94
Stuff+
10th percentile
96
ABStuff+
10th percentile
106
Pitching+
73th percentile
20.5%
K%
47th percentile
8.4%
BB%
58th percentile
7.25
FIP
14th percentile
Grades describe this season's stuff and run prevention. They are not forecasts: on clean season pairs the model has not beaten naive persistence (RESULTS-MLB §13), so nothing here projects next season.
Percentile rankings
vs 2026 graded MLB pitchers · 82.3 IP · 370 BF · 1,439 pitches · 2026 season
Stuff
Stuff+94
10th percentile
ABStuff+96
10th percentile
Whiff%24.3%
64th percentile
CSW%34.4%
64th percentile
Results
Pitching+106
73th percentile
RV/100-1.17
24th percentile
FIP7.25
14th percentile
RA/93.17
76th percentile
GB%34.2%
22th percentile
Command
K%20.5%
47th percentile
BB%8.4%
58th percentile
K-BB%12.2%
53th percentile
Velo86.2
12th percentile
How to read these
Each row is his rank, 1 to 99, among all graded MLB pitchers this season; the tick is the median. Green is good for him, red bad, whatever the stat's direction (a low FIP ranks high). Grey circles are descriptive rates with no good direction, and n= in place of a rank means too few events to rank. Grades are descriptive, not forecasts.
Percentile rankings
Raw plate discipline · vs 2026 graded MLB pitchers · 82.3 IP · 370 BF · 1,439 pitches · 2026 season
Swing & miss
Z-Whf%14.4%
58th percentile
O-Whf%42.2%
61th percentile
Chase%30.1%
55th percentile
Z-Con%85.6%
58th percentile
O-Con%57.8%
61th percentile
SwStr%27.3%
58th percentile
PutAwy%17.8%
56th percentile
Approach
Zone%45.4%
30th percentile
Z-Swg%65.8%
43th percentile, descriptive, no good or bad direction
Swing%46.3%
41th percentile
CS%20.2%
51th percentile
F-Str%42.8%
13th percentile
How to read these
Raw rates with this season's descriptive ranks. Sample-adjusted (shrunk) rankings are not shown yet: the reliability constants behind them were measured on college data and are being re-measured on MLB. Until then a small sample here is a small sample — hover the leaderboard column for its event count.
ArsenalKey columns; every column is on the Arsenal tab
Movement Profile
FF+2.7/+2.6CT+0.9/+3.9SW-1.5/+1.9CH+1.7/-1.4CB-0.1/-1.7SI+5.6/+2.0ring = slot expectation ±1σ/2σ · HB mirrored for LHP · descriptive
Release Traits
Height: 6.02 ft (±0.10)
Side: -1.24 ft (±0.14)
Extension: 6.83 ft
Season means; the ± is the SD across his pitches. Per-pitch release plots land in a later wave.
Batted Ball Against
Pitch
N_BIP
GB%
FB%
LD%
PU%
Avg EV
Avg LA
HrdHit%
FF
61
21.3
41.0
27.9
0.0
85.6
33.4
44.3
CH
49
34.7
36.7
22.4
0.0
80.5
14.4
20.4
SW
48
45.8
37.5
10.4
0.0
78.1
19.1
33.3
CT
47
36.2
48.9
10.6
0.0
83.0
25.8
51.1
SI
29
31.0
24.1
34.5
0.0
83.8
18.1
41.4
CB
25
40.0
32.0
24.0
0.0
89.2
9.3
56.0
Every pitch type he threw, ordered by balls in play. Rows under 5 BIP are dimmed rather than dropped — a slider put in play twice is a fact about the slider.
Arsenal
Pitches
6
83rd pct
Effective mix
5.7
97th pct
Separation
22.4
80th pct
Shape scatter
3.3 in
71st pct
Velo range
12.6 mph
58th pct
FF · CT · SW · CH · CB · SI
2026 season, 1,439 pitches; percentiles vs MLB pitchers with 100+ that season. A description of the arsenal, not a grade: none of these predicted next season beyond Pitching+ and his own prior year. For shape scatter a higher percentile is MORE scatter.
Run value by pitch2026 · measured
Pitch
Pitches
PA reach
RV/100
Lg avg
CB
170
123
-0.76
-0.34
CH
227
143
-1.32
-0.07
CT
274
189
-2.58
-0.07
FF
395
235
-1.31
-0.01
SI
138
102
-3.45
+0.27
SW
235
133
+1.82
-0.01
RV/100 is pitcher-positive (runs saved per 100 pitches). These are results: on a sample this size most of the gap between pitchers is the bounce of the ball, so the column never colours and never ranks a grade. The expected-value half of this card (xRV/100, locations, xwOBA) needs the run-value model and does not ship yet.
Location value
runs per 100 pitches vs league
Total
−0.08
37th percentile
Where he throws
−0.05
40th percentile
Which pitch there
−0.03
42th percentile
Heart29.9%
+174.27/100
Shadow39.7%
+115.87/100
Chase22.9%
−286.13/100
Waste7.6%
−497.23/100
What makes up the total
chase · FB4.6%−0.25
heart · FB10.6%+0.22
chase · CT4.0%−0.15
shadow · CH6.7%+0.13
heart · CT6.3%+0.10
19 other locations−0.15
Total−0.08
Pitcher-positive, centred on the 2026 league mean (+0.01 RV/100). Ranks are descriptive: the year-to-year reliability of this mix on MLB has not been measured yet, so no cell is verdict-coloured. His actual run value minus this mix — execution — is deliberately not shown.