← BackJustin Martinez
AZ · RHP · 2026
13.0 IP · 55 BF · 232 pitches · 2026 season
MED Descriptive — not a forecast
122
Stuff+
99th percentile
109
ABStuff+
98th percentile
120
Pitching+
99th percentile
32.7%
K%
94th percentile
18.2%
BB%
5th percentile
3.24
FIP
95th 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 · 13.0 IP · 55 BF · 232 pitches · 2026 season
Stuff
Stuff+122
99th percentile
ABStuff+109
98th percentile
Whiff%29.1%
87th percentile
CSW%34.5%
65th percentile
Results
Pitching+120
99th percentile
RV/100+1.27
90th percentile
FIP3.24
95th percentile
RA/97.62
9th percentile
GB%53.8%
90th percentile
Command
K%32.7%
94th percentile
BB%18.2%
5th percentile
K-BB%14.5%
65th percentile
Velo98.7
99th 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 · 13.0 IP · 55 BF · 232 pitches · 2026 season
Swing & miss
Z-Whf%18.5%
84th percentile
O-Whf%61.9%
97th percentile
Chase%17.6%
5th percentile
Z-Con%81.5%
84th percentile
O-Con%38.1%
95th percentile
SwStr%30.2%
86th percentile
PutAwy%24.3%
92th percentile
Approach
Zone%48.7%
65th percentile
Z-Swg%57.5%
5th percentile, descriptive, no good or bad direction
Swing%37.1%
5th percentile
CS%22.2%
77th percentile
F-Str%49.1%
44th 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-1.4/-2.2SI-0.7/-0.6FS-3.4/+2.7SL+5.4/-5.5ring = slot expectation ±1σ/2σ · HB mirrored for LHP · descriptive
Release Traits
Height: 6.17 ft (±0.12)
Side: -2.77 ft (±0.31)
Extension: 6.21 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
11
18.2
63.6
0.0
0.0
82.1
32.1
9.1
SI
11
81.8
9.1
9.1
0.0
83.7
3.2
36.4
FS
4
75.0
0.0
25.0
0.0
76.2
-7.4
50.0
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
4
23rd pct
Effective mix
3.4
36th pct
Separation
14.1
3rd pct
Shape scatter
2.8 in
16th pct
Velo range
11.4 mph
41st pct
FF · SI · FS · SL
2026 season, 232 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
FF
84
43
+2.57
-0.01
FS
54
35
+0.59
+0.13
SI
84
40
+0.76
+0.27
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
−0.18
22th percentile
Where he throws
−0.03
47th percentile
Which pitch there
−0.15
13th percentile
Heart29.7%
+174.27/100
Shadow40.9%
+115.87/100
Chase20.7%
−286.13/100
Waste8.6%
−497.23/100
What makes up the total
chase · FB9.1%−0.49
heart · SI12.5%+0.31
heart · FB12.1%+0.26
shadow · SI17.7%+0.22
chase · SI4.3%−0.20
11 other locations−0.27
Total−0.18
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.