Mithrandir Metrics
PIT 2026-08-30 Refreshed Sep 1 06:00 AM ET
Section III · Betting · Player detail · 2026-08-30

Jake Mangum

PIT · Hitter
IN · 7 Negative regression Neutral
MatchupPIT vs STLMatthew Liberatore
Sample774.0career MLB AB
PROPS 3 available PERCENTILES 27 rows LINEUPS confirmed artifact NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.065, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.079, 14d error rising. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.047, 14d error rising. This flags probability calibration, not a blanket model failure.
Pitcher Outs · Palantir calibration review Last 14d ECE 0.064, 14d stable. This flags probability calibration, not a blanket model failure.
Tonight's props · all markets for this player
Home Run 0.5
P 7.4
F 10.9
V 10.9
Model 7.8% Market 7.7% Gap -0.2pp
DraftKings 1150 tracking Open board
Total Bases 0.5
P 62.0
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 75.3% Market 76.5% Gap +14.5pp
BetMGM -325 tracking Open board
Hits 0.5
P 30.6
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 30.6% Market -- Gap +3.8pp
FanDuel 240 tracking Open board
RBI --
RBI · no production board

No production board publishes this player-market cell today.

Underlying skill · actual percentile with projection tick

Percentile strip

100th = best in MLB
Hitting · percentile strip
Barrel%1.4%
6
Exit velocity83.1
7
Hard-hit%27.8%
11 -20 vs proj
xBA0.316
47
xSLG0.417
20
xwOBA0.285
29
BB%5.2%
15
Bat speed64.5
6
K%20.3%
64 -24 vs proj
Defense · percentile strip
Arm Runs1.0 · CF
74
Arm Strength98.5 · CF
85
Outs Above Avg-1.0 · CF
22
Range Runs1.5 · CF
64
Baserunning · percentile strip
Base Running Runs1.3 · CF
73
Bolts48.0 · CF
93
SB Success Rate66.7% · CF
20
Sprint Speed29.5 · CF
95
Mithrandir+ · percentile strip
Avoids Bad ChasesST 51.7%
6
Avoids Bad TakesHPT 23.2%
69
Correct Decisions61.1%
11
SEAGER+ Plate Discipline90
11
Resists Breaking - horizontalwOBA 0.314 · small sample
small sample
Resists Breaking - verticalwOBA 0.284 · thin sample
thin sample
Resists ChangeupwOBA 0.261
Small sample
Resists Cutters + splitterswOBA 0.336 · thin sample
thin sample
Resists FastballwOBA 0.340
Small sample
Resists SinkerwOBA 0.334
Small sample

Context

projection · regression · matchup
Projected range--
RegressionNegative · -0.060
Opposing pitcherMatthew Liberatore
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-09-01
Palantir 17901 props Brier 0.117 ECE 0.008 14d stable
Fangorn 17901 props Brier 0.118 ECE 0.009 14d stable
Valinor 12243 props Brier 0.112 ECE 0.005 14d stable
Palantir 1577 props Brier 0.247 ECE 0.006 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1073 props Brier 0.247 ECE 0.016 14d error rising
Palantir 8544 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 673 props Brier 0.163 ECE 0.031 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 891 props Brier 0.256 ECE 0.060 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir tracking in progress (0 logged)
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)