Mithrandir Metrics
Player Arizona Diamondbacks Refreshed Sep 27 06:00 AM ET
Player profile / Arizona Diamondbacks

James McCann

C · Bats/Throws R/R · 6' 2", 235 lb · Age 36

Cards
6
Modules
1
Live Δ
yes
Club Arizona Diamondbacks Position C Roster Current MLB team Status Healthy / active roster
Traditional line

Season by season

3D Swing Sim Projections
PARHHRSBAVGOBPSLGOPS
2024233275081.234.279.388.667
2025137183250.260.324.431.755
2026166174470.282.311.455.766
13 Seasons361035280910415.244.295.386.681
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.

2026-09-27
73
Offense
percentile
Offense9 metrics
59
Defense6 metrics
43
Speed1 metrics
7
Plate skills11 metrics
42
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-27
xwOBA preseason0.311
xwOBA current pace0.302
xwOBA rolling p500.307
Observed weight44%
xwOBA
0.273 0.289 0.307 0.325 0.341
wOBA
0.329 0.351 0.376 0.400 0.423
ISO
0.141 0.162 0.185 0.208 0.228
K%
20.8% 22.7% 24.8% 26.9% 28.8%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-27
Hitting · percentile strip
Barrel%10.3%
99 +47 vs proj
Exit velocity89.0
63
Hard-hit%47.2%
87 +30 vs proj
xBA0.329
63
xSLG0.594
78
xwOBA0.302
50
BB%3.4%
5 -15 vs proj
Bat speed69.5
48
K%25.3%
37
Defense · percentile strip
Blocking Runs0.2 · C
60
Catcher Throwing-1.1 · C
24
Framing Runs-5.3 · C
8
Outs Above Avg0.0 · C
68
Pop Time2.0 · C
22
Range Runs0.1 · C
75
Baserunning · percentile strip
Sprint Speed25.2 · C
7
Mithrandir+

Stuff+ and arsenal context

How nasty this pitcher's stuff grades in our pitch-level model. Missing coverage is shown explicitly.

2026-09-27
Avoids Bad ChasesST 57.4% · rebadged research
14
Avoids Bad TakesHPT 31.4% · rebadged research
8
Correct Decisions59.3% · rebadged research
6
Mithrandir Stuff+59
1
Resists Breaking - horizontalwOBA 0.280 · borderline
71
Resists Breaking - verticalwOBA 0.290 · insufficient sample
24
Resists ChangeupwOBA 0.263 · validated thin sample
86
Resists Cutters + splitterswOBA 0.300 · insufficient sample
93
Resists FastballwOBA 0.316 · validated
87
Resists SinkerwOBA 0.352 · validated
64
SEAGER+ Plate Discipline87
7
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 McCann, James · Live snapshot series; true 50/100 PA windows require PA-level logs LG AVG 0.302 0.302 2026-09-13: 0.2882026-09-14: 0.2852026-09-18: 0.2852026-09-19: 0.2852026-09-20: 0.2852026-09-21: 0.2852026-09-22: 0.2852026-09-23: 0.2852026-09-24: 0.2852026-09-25: 0.2852026-09-26: 0.2942026-09-27: 0.302 2026-09-13 2026-09-27 xwOBA MITHRANDIR · CHARTS
Optimization map

Arsenal optimization map

Pitch-shape context from this pitcher’s current arsenal snapshot. Hover a pitch to inspect usage, movement, and bat-missing context.

3Pitches 2026Season 96%Top usage
ride armside gloveside +Arsenal gap +Shape contrast
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 McCann, James · Aggregate zone metrics; not pitch-by-pitch locations Zone: 48%48%Chase: 40%40%Whiff: 29%29%Zone contact: 87%87%Contact: 71%71%Hard hit: 47%47% Dashed border = aggregate mixed-batter zone proxy MITHRANDIR · CHARTS
Pitch arsenal

Usage mix, movement map, and Stuff+ composition

2026 pitch-level arsenal aggregates; current season takes over after 100 tracked pitches across at least 2 pitch types. Descriptive pitch-type Stuff+ composition. Not a promoted predictive metric.

Watch the pitches in 3D →

2026
Mithrandir Metrics PITCH ARSENAL DONUT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal McCann, James · 2026 arsenal snapshot Eephus: 96.5%Curveball: 1.8%Other: 1.8% EP96% · 38 mphprimary pitch EP 96%CU 2%FA 2% MITHRANDIR · CHARTS
Mithrandir Metrics PITCH MOVEMENT Parameterized Mithrandir chart rendered as SVG for templates and exports. Pitch Arsenal McCann, James · 2026 arsenal snapshot 6″12″18″24″ Eephus: 96% usage, 0″ horizontal break, 15″ drop, 38.0 mphEP38 mphCurveball: 2% usage, 0″ horizontal break, 8″ drop, 55.2 mphCU55 mphOther: 2% usage, 1″ horizontal break, 4″ drop, 65.0 mphFA65 mph less drop ↑ more drop ↓ · horizontal break ↔ · dot size = usage · break incl. gravity MITHRANDIR · CHARTS
PitchUsagePitchesStuff+Status
FB 50.0% 1 104 limited sample
CB 50.0% 1 81 limited sample
Method note

Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.

Reference layer

Current snapshot

Age36
Height6' 2"
Weight235 lb
Debut2014-09-01
Live layer

Delta / regression

xwOBA Δ+0.001
wOBA Δ+0.075

negative regression

Regression watch

Running hot. Expect some cooling.

-2.2σ gap
wOBA (actual)0.376
xwOBA (deserved)0.302

McCann’s wOBA sits at 0.376, but the quality of contact underneath says it should be 0.302 — a gap of 0.073, -2.2 standard deviations from the MLB norm over 174 PA. The results have outrun the underlying process; as the sample grows, expect the numbers to drift back toward the deserved level.

Mithrandir coverage

Module shelf

ModuleCardsLatestSignal
Fielding62026-09-261 chances | 0 difficult plays | Run Exp -0.095
Projection links / recent games

Available detail

Hitter Projections 20260.301 xwOBA | 9 HRProjection
2026-04-17 vs TOR0 HR | 0 RBI / 7 Ch | 0 E1-4 | K, R
2026-04-14 @ BAL0 HR | 0 RBI / 7 Ch | 0 E2-4 | K, R
2026-04-12 @ PHI0 HR | 1 RBI / 6 Ch | 0 E2-4 | 2B, 2 K, RBI
2026-04-09 @ NYM0 HR | 0 RBI / 3 Ch | 0 E0-2 | 2 K
2026-04-05 vs ATL0 HR | 0 RBI / 6 Ch | 0 E0-3