Mithrandir Metrics
Player Arizona Diamondbacks Refreshed Sep 3 06:00 AM ET
Player profile / Arizona Diamondbacks

Max Kepler

LF · Bats/Throws L/L · 6' 4", 225 lb · Age 33

Cards
15
Modules
2
Live Δ
yes
Club Arizona Diamondbacks Position LF Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

PARHHRSBAVGOBPSLGOPS
2024399439381.253.302.380.682
20254745890183.216.300.391.691
2026139112720.214.273.317.590
12 Seasons4864623101018138.235.315.422.737
At a glance

Season percentile report

The headline weighs outcome stats (xwOBA, barrels); each bar averages its full strip group below. 100 = best in MLB.

2026-09-03
42
Offense
percentile
Offense9 metrics
44
Defense4 metrics
41
Speed1 metrics
41
Plate skills9 metrics
46
Rolling projection

Preseason / current pace / Bayesian update

Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.

2026-09-03
xwOBA preseason0.309
xwOBA current pace0.277
xwOBA rolling p500.297
Observed weight39%
xwOBA
0.267 0.281 0.297 0.312 0.326
wOBA
0.216 0.238 0.263 0.289 0.311
ISO
0.086 0.105 0.126 0.146 0.165
K%
18.5% 20.0% 21.7% 23.4% 24.9%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-03
Hitting · percentile strip
Barrel%5.8%
63
Exit velocity88.5
57
Hard-hit%40.8%
61
xBA0.282
15
xSLG0.454
31
xwOBA0.277
23 -40 vs proj
BB%7.9%
44
Bat speed69.3
45
K%21.6%
55
Defense · percentile strip
Arm Runs-1.5 · LF
18
Arm Strength87.8 · LF
12
Outs Above Avg1.0 · LF
80
Range Runs0.7 · LF
54
Baserunning · percentile strip
Sprint Speed27.1 · LF
41
Mithrandir+

Plate skills: swing decisions and pitch-type resistance

Our research metrics for how this hitter controls the strike zone and handles each pitch family.

2026-09-03
Avoids Bad ChasesST 54.4% · rebadged research
10
Avoids Bad TakesHPT 21.0% · rebadged research
85
Correct Decisions62.5% · rebadged research
18
Resists Breaking - horizontalwOBA 0.291 · borderline
45
Resists ChangeupwOBA 0.280 · validated thin sample
46
Resists Cutters + splitterswOBA 0.327 · insufficient sample
56
Resists FastballwOBA 0.321 · validated
83
Resists SinkerwOBA 0.355 · validated
53
SEAGER+ Plate Discipline94
20
Rolling form chart

xwOBA snapshot line

Live snapshot series; true 50/100 PA windows require PA-level logs

12 snapshots
Mithrandir Metrics ROLLING XWOBA LINE Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Rolling xwOBA Kepler, Max · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.303 0.277 2026-08-23: 0.2752026-08-24: 0.2752026-08-25: 0.2742026-08-26: 0.2742026-08-27: 0.2732026-08-28: 0.2762026-08-29: 0.2762026-08-30: 0.2772026-08-31: 0.2772026-09-01: 0.2772026-09-02: 0.2772026-09-03: 0.277 2026-08-23 2026-09-03 xwOBA MITHRANDIR · CHARTS
Spray profile

Field-coordinate spray profile

35 Statcast batted-ball coordinates from the pitch-event feed (2026). Direction profile remains as the v1 context layer when coordinate density is limited.

Mithrandir Metrics SPRAY CHART Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Spray Chart Kepler, Max · Statcast batted-ball landing coordinates Left field third: 6% of plotted batted ballsPull 6%Center field third: 77% of plotted batted ballsCenter 77%Right field third: 17% of plotted batted ballsOppo 17% LF 330 CF 400 RF 330 2026-06-26 · field out · CH · line_drive · EV 61.5 / LA 20.02026-06-26 · field out · FF · fly_ball · EV 96.8 / LA 53.02026-06-30 · field out · SI · fly_ball · EV 83.4 / LA 44.02026-06-30 · field out · CH · ground_ball · EV 77.8 / LA -18.02026-06-30 · single · SI · fly_ball · EV 75.6 / LA 37.02026-06-30 · double · CH · line_drive · EV 98.8 / LA 16.02026-07-27 · field out · SL · line_drive · EV 95.5 / LA 16.02026-07-27 · field out · CH · ground_ball · EV 68.0 / LA -12.02026-07-27 · double · CH · ground_ball · EV 101.6 / LA -4.02026-07-27 · single · SL · line_drive · EV 86.0 / LA 15.02026-07-27 · single · SI · ground_ball · EV 110.3 / LA 5.02026-07-31 · grounded into double play · FF · ground_ball · EV 74.1 / LA -15.02026-07-31 · field out · FC · line_drive · EV 108.1 / LA 16.02026-07-31 · field out · CH · fly_ball · EV 86.8 / LA 53.02026-07-31 · field out · SI · fly_ball · EV 95.9 / LA 25.02026-08-02 · field out · CH · ground_ball · EV 53.5 / LA -37.02026-08-04 · force out · SI · ground_ball · EV 91.6 / LA -26.02026-08-04 · field out · SI · fly_ball · EV 90.0 / LA 46.02026-08-07 · field out · FF · ground_ball · EV 87.7 / LA 0.02026-08-15 · field out · FF · fly_ball · EV 100.3 / LA 33.02026-08-15 · field out · SL · popup · EV 84.3 / LA 71.02026-08-15 · double · FC · line_drive · EV 99.1 / LA 17.02026-08-16 · single · FF · line_drive · EV 105.2 / LA 13.02026-08-16 · field out · CH · fly_ball · EV 82.5 / LA 47.02026-08-16 · field out · FF · ground_ball · EV 79.5 / LA -1.02026-08-24 · single · FF · ground_ball · EV 106.4 / LA 5.02026-08-24 · field out · FF · ground_ball · EV 101.5 / LA -11.02026-08-24 · field out · FS · fly_ball · EV 86.2 / LA 48.02026-08-27 · single · SI · line_drive · EV 104.5 / LA 8.02026-08-27 · field out · FC · fly_ball · EV 88.2 / LA 50.02026-08-27 · field out · SI · line_drive · EV 110.7 / LA 15.02026-08-27 · field out · SI · ground_ball · EV 91.4 / LA -33.02026-08-29 · field out · FF · line_drive · EV 94.9 / LA 10.02026-08-29 · single · SI · ground_ball · EV 102.5 / LA 4.02026-08-29 · field out · CH · popup · EV 66.8 / LA 66.0 1B2B3BHROut Zone shading = batted-ball density by field third · hover dots for date, pitch, EV, and LA. MITHRANDIR · CHARTS
Zone profile

Aggregate zone heatmap

Aggregate zone metrics from seasonal Statcast leaderboards.

Mithrandir Metrics ZONE HEATMAP Parameterized Mithrandir chart rendered as SVG for templates and exports. season=2026 Swing Zone Profile Kepler, Max · Aggregate zone metrics; not pitch-by-pitch locations Zone: 47%47%Chase: 37%37%Whiff: 23%23%Zone contact: 88%88%Contact: 77%77%Hard hit: 41%41% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Reference layer

Current snapshot

Age33
Height6' 4"
Weight225 lb
Debut2015-09-27
Live layer

Delta / regression

xwOBA Δ-0.039
wOBA Δ-0.053

positive regression

Regression watch

Unlucky so far. Better days ahead.

0.4σ gap
wOBA (actual)0.263
xwOBA (deserved)0.277

Kepler’s wOBA sits at 0.263, but the quality of contact underneath says it should be 0.277 — a gap of 0.013, 0.4 standard deviations from the MLB norm over 139 PA. The results have been worse than the process deserves; as the sample grows, expect the numbers to climb back toward the underlying level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Hitting12026-07-21Impact contact was the main driver
Fielding142026-08-295 chances | 0 difficult plays | Run Exp +2.726
Projection links / recent games

Available detail

Hitter Projections 20260.316 xwOBA | 16 HRProjection
2026-08-15 @ ATL0 HR | 0 RBI / 3 Ch | 0 E1-5 | 2B, 2 K, R