Reference layer
Current snapshot
| Age | 27 |
| Height | 6' 0" |
| Weight | 170 lb |
| Debut | 2025-04-22 |
Player profile / Buffalo Bisons
Chase Lee
P profile with live context, projection links, and Mithrandir card history when available.
Club Buffalo Bisons
Position P
Roster Reassigned to Minors
Status Out / inactive
Rolling projection
Preseason / current pace / Bayesian update
Rolling bands shrink current-season signal toward the preseason prior until the sample earns more weight.
| ERA preseason | 4.25 |
| ERA current pace | 8.10 |
| ERA rolling p50 | 4.56 |
| Observed weight | 8% |
ERA
2.57
3.51
4.56
5.61
6.56
FIP
3.35
3.96
4.64
5.32
5.93
K%
15.7%
19.2%
23.1%
27.0%
30.5%
BB%
3.7%
5.5%
7.6%
9.7%
11.5%
Live percentile strip
Current traits vs projection tick
100th = best in MLB.
Mithrandir+
Stuff+ and arsenal context
Stuff+ appears when the current pitch-event scoring artifact includes this pitcher; missing coverage is shown explicitly.
Mithrandir Stuff+100
30
Rolling form chart
xwOBA allowed snapshot line
Live snapshot series; true 50/100 PA windows require PA-level logs
No chart yet
No Live State xwOBA snapshots are available for this player.
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.
4Pitches
2025Season
38%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 |
|---|---|---|---|---|
| SI | 39.3% | 22 | 108 | limited sample |
| SL | 35.7% | 20 | 91 | limited sample |
| FB | 19.6% | 11 | 87 | limited sample |
| CH | 5.4% | 3 | 112 | limited sample |
Method note
Renamed from the attempted Kirby Index after audit; true Kirby requires release-angle trajectory data.
Live layer
Delta / regression
No Live State delta is available for this profile yet.
Mithrandir coverage
Module shelf
| Module | Cards | Latest | Signal |
|---|---|---|---|
| No Mithrandir card history is available for this player yet. | |||
Projection links / recent games
Available detail
| Pitcher Projections 202622.4% K | 4.16 ERA | Projection |
| 2026-03-20 @ MIN0 ER / 0 K | 1.2 IP |
| 2026-03-11 @ NYY0 ER / 0 K | 0.2 IP |