Mithrandir Metrics
BAL 2026-08-25 Refreshed Sep 1 06:00 AM ET
Section III · Betting · Player detail · 2026-08-25

Jackson Holliday

BAL · Hitter · bats L · age 23
IN · 1 Positive regression Neutral
MatchupBAL vs STLMatthew Liberatore
Sample--career MLB AB
PROPS 2 available PERCENTILES 20 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 13.4
F 11.9
V 10.8
Model 19.6% Market 13.2% Gap +5.9pp
DraftKings 635 tracking Open board
Total Bases 2.5
P 38.4
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 36.9% Market 36.3% Gap +2.1pp
FanDuel 165 tracking Open board
Hits --
Hits · tracking

No production board publishes this player-market cell today.

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%4.3%
42 -27 vs proj
Exit velocity86.8
37
Hard-hit%34.8%
34 -44 vs proj
xBA0.325
57
xSLG0.495
49
xwOBA0.309
54
BB%12.3%
88 +34 vs proj
Bat speed68.3
32
K%22.8%
48
Defense · percentile strip
Arm Strength82.5 · 2B
14
Outs Above Avg0.0 · 2B
47
Range Runs-0.8 · 2B
46
Baserunning · percentile strip
Base Running Runs0.5 · 2B
55
Bolts5.0 · 2B
48
SB Success Rate71.4% · 2B
28
Sprint Speed28.7 · 2B
85
Mithrandir+ · percentile strip
Avoids Bad ChasesST 71.1%
Small sample
Avoids Bad TakesHPT 21.5%
Small sample
Correct Decisions69.7%
Small sample
SEAGER+ Plate Discipline109
Small sample

Context

projection · regression · matchup
Projected range0.285 to 0.385
RegressionPositive · 0.001
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)