Mithrandir Metrics
Player Arizona Diamondbacks Refreshed Sep 1 06:00 AM ET
Player profile / Arizona Diamondbacks

James McCann

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

Cards
5
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
2026138143840.295.331.434.765
13 Seasons358234980310115.244.296.384.680
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.

2026-09-01
60
Offense
percentile
Offense9 metrics
51
Defense6 metrics
39
Speed1 metrics
9
Plate skills11 metrics
39
Rolling projection

Preseason / current pace / Bayesian update

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

2026-09-01
xwOBA preseason0.311
xwOBA current pace0.286
xwOBA rolling p500.301
Observed weight41%
xwOBA
0.266 0.282 0.301 0.319 0.336
wOBA
0.334 0.358 0.385 0.411 0.435
ISO
0.126 0.147 0.171 0.195 0.217
K%
20.1% 22.0% 24.2% 26.4% 28.4%
Live percentile strip

Current traits vs projection tick

100th = best in MLB.

2026-09-01
Hitting · percentile strip
Barrel%8.7%
91 +38 vs proj
Exit velocity88.6
59
Hard-hit%44.9%
79 +24 vs proj
xBA0.316
46
xSLG0.521
57
xwOBA0.286
30 -17 vs proj
BB%4.0%
9
Bat speed69.3
45
K%24.0%
43
Defense · percentile strip
Blocking Runs-0.1 · C
48
Catcher Throwing-1.2 · C
18
Framing Runs-5.3 · C
7
Outs Above Avg0.0 · C
65
Pop Time2.0 · C
23
Range Runs0.1 · C
71
Baserunning · percentile strip
Sprint Speed25.4 · C
9
Mithrandir+

Stuff+ and arsenal context

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

2026-09-01
Avoids Bad ChasesST 58.0% · rebadged research
16
Avoids Bad TakesHPT 30.6% · rebadged research
12
Correct Decisions60.2% · rebadged research
9
Mithrandir Stuff+49
1
Resists Breaking - horizontalwOBA 0.267 · borderline
90
Resists Breaking - verticalwOBA 0.288 · insufficient sample
23
Resists ChangeupwOBA 0.274 · validated thin sample
66
Resists Cutters + splitterswOBA 0.303 · insufficient sample
94
Resists FastballwOBA 0.320 · validated
83
Resists SinkerwOBA 0.364 · validated
31
SEAGER+ Plate Discipline89
10
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 0.303 0.286 2026-08-21: 0.2712026-08-22: 0.2712026-08-23: 0.2712026-08-24: 0.2712026-08-25: 0.2752026-08-26: 0.2752026-08-27: 0.2862026-08-28: 0.2862026-08-29: 0.2862026-08-30: 0.2862026-08-31: 0.2862026-09-01: 0.286 2026-08-21 2026-09-01 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: 28%28%Zone contact: 88%88%Contact: 72%72%Hard hit: 45%45% 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% 1 111 limited sample
CB 50.0% 1 80 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-0.015
wOBA Δ+0.084

negative regression

Regression watch

Running hot. Expect some cooling.

-2.8σ gap
wOBA (actual)0.385
xwOBA (deserved)0.286

McCann’s wOBA sits at 0.385, but the quality of contact underneath says it should be 0.286 — a gap of 0.099, -2.8 standard deviations from the MLB norm over 150 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
Fielding52026-08-231 chances | 0 difficult plays | Run Exp -0.148
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