Reference layer
Current snapshot
| Age | 34 |
| Height | 5' 10" |
| Weight | 190 lb |
| Debut | 2019-09-04 |
Player profile / Toronto Blue Jays
Tyler Heineman
C profile with live context, projection links, and Mithrandir card history when available.
Club Toronto Blue Jays
Position C
Roster Active
Status Healthy / active roster
Rolling projection
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| xwOBA preseason | 0.282 |
| xwOBA current pace | 0.208 |
| xwOBA rolling p50 | 0.261 |
| Observed weight | 28% |
xwOBA
0.214
0.236
0.261
0.286
0.309
wOBA
0.159
0.186
0.216
0.246
0.273
ISO
0.042
0.072
0.105
0.138
0.168
K%
14.8%
17.2%
19.8%
22.4%
24.8%
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Hitting · percentile strip
BB%2.3%
1
-29 vs proj
Barrel%1.2%
7
Bat speed60.2
0
Exit velocity79.6
2
Hard-hit%17.7%
2
K%20.9%
57
xBA0.231
1
xSLG0.300
1
xwOBA0.208
3
Defense · percentile strip
Blocking Runs0.9 · C
91
Catcher Throwing1.5 · C
84
Framing Runs3.5 · C
91
Pop Time1.9 · C
62
Baserunning · percentile strip
Sprint Speed25.9 · C
18
Mithrandir+
Stuff+ and arsenal context
Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; missing coverage is shown explicitly.
Avoids Bad ChasesST 55.2% · rebadged research
12
Avoids Bad TakesHPT 29.2% · rebadged research
15
Correct Decisions63.4% · rebadged research
24
Mithrandir Stuff+32
0
Resists Breaking - horizontalwOBA 0.269 · borderline
84
Resists Breaking - verticalwOBA 0.259 · insufficient sample
93
Resists ChangeupwOBA 0.254 · validated thin sample
95
Resists Cutters + splitterswOBA 0.315 · insufficient sample
89
Resists FastballwOBA 0.330 · validated
69
Resists SinkerwOBA 0.350 · validated
69
SEAGER+ Plate Discipline89
9
Rolling form chart
xwOBA snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
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.
2Pitches
2025Season
91%Top usage
ride
armside
gloveside
+Arsenal gap
+Shape contrast
Zone profile
Aggregate zone heatmap
Aggregate zone metrics from seasonal Statcast leaderboards.
Pitch arsenal
Usage mix, movement map, and Stuff+ composition
2025 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.
| Pitch | Usage | Pitches | Stuff+ | Status |
|---|---|---|---|---|
| FB | 100.0% | 12 | 64 | limited sample |
Method note
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Live layer
Delta / regression
| xwOBA Δ | -0.050 |
| wOBA Δ | -0.042 |
Mithrandir coverage
Module shelf
| Module | Cards | Latest | Signal |
|---|---|---|---|
| No Mithrandir card history is available for this player yet. | |||
Projection links / recent games
Available detail
| Hitter Projections 20260.258 xwOBA | 7 HR | Projection |
| 2026-04-20 @ LAA0 HR | 0 RBI / 18 Ch | 0 E | 0-2 | K |
| 2026-04-17 @ AZ0 HR | 0 RBI / 6 Ch | 1 E | 1-3 | K, R |
| 2026-04-14 @ MIL0 HR | 0 RBI / 3 Ch | 0 E | 0-1 |
| 2026-04-08 vs LAD0 HR | 0 RBI / 9 Ch | 0 E | 1-3 | K |
| 2026-04-07 vs LAD0 HR | 0 RBI / 0 Ch | 0 E | 0-1 | K |