Mithrandir Metrics
PHI 2026-08-25 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-08-25

Brandon Marsh

PHI · Hitter · bats L · age 29
IN · 7 Negative regression Neutral
MatchupPHI vs SEAGeorge Kirby
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 0.053, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.068, 14d stable. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.053, 14d error rising. This flags probability calibration, not a blanket model failure.
Tonight's props · all markets for this player
Home Run 0.5
P 11.2
F 12.4
V 8.6
Model 17.8% Market 11.8% Gap +5.6pp
DraftKings 720 tracking Open board
Total Bases 2.5
P 39.2
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 38.0% Market 37.0% Gap +2.2pp
FanDuel 160 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%6.1%
67
Exit velocity89.1
63
Hard-hit%44.3%
77
xBA0.356
84
xSLG0.570
71
xwOBA0.310
55 -19 vs proj
BB%6.1%
22 -46 vs proj
Bat speed69.7
51
K%24.6%
38
Defense · percentile strip
Arm Runs-4.3 · LF
1
Arm Strength100.5 · LF
93
Outs Above Avg0.0 · LF
48
Range Runs-1.0 · LF
35
Baserunning · percentile strip
Base Running Runs2.2 · LF
86
SB Success Rate90.0% · LF
80
Sprint Speed28.2 · LF
72
Mithrandir+ · percentile strip
Avoids Bad ChasesST 61.0%
28
Avoids Bad TakesHPT 27.6%
26
Correct Decisions65.3%
42
SEAGER+ Plate Discipline94
20

Context

projection · regression · matchup
Projected range0.286 to 0.377
RegressionNegative · -0.034
Opposing pitcherGeorge Kirby
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-09-02
Palantir 18081 props Brier 0.118 ECE 0.008 14d stable
Fangorn 18081 props Brier 0.118 ECE 0.009 14d stable
Valinor 12423 props Brier 0.112 ECE 0.004 14d stable
Palantir 1591 props Brier 0.247 ECE 0.006 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1087 props Brier 0.248 ECE 0.016 14d stable
Palantir 8613 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 683 props Brier 0.163 ECE 0.031 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 900 props Brier 0.256 ECE 0.059 14d error falling
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)