Mithrandir Metrics
PHI 2026-08-31 Refreshed Aug 31 06:00 AM ET
Section III · Betting · Player detail · 2026-08-31

Brandon Marsh

PHI · Hitter
IN · 7 Negative regression Neutral
MatchupPHI vs AZBrandon Pfaadt
Sample2329.0career MLB AB
PROPS 2 available PERCENTILES 26 rows LINEUPS confirmed artifact NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.061, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.077, 14d error rising. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.045, 14d error rising. This flags probability calibration, not a blanket model failure.
Pitcher Outs · Palantir calibration review Last 14d ECE 0.077, 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 11.0
F 12.4
V 9.4
Model 17.3% Market 11.0% Gap +6.0pp
DraftKings 780 tracking Open board
Total Bases 0.5
P 61.6
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 74.8% Market 75.6% Gap +14.0pp
BetMGM -310 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%5.9%
65
Exit velocity89.0
62
Hard-hit%43.9%
76
xBA0.355
85
xSLG0.567
71
xwOBA0.310
56 -19 vs proj
BB%6.3%
25 -43 vs proj
Bat speed69.7
51
K%24.7%
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
36
Baserunning · percentile strip
Base Running Runs2.1 · LF
82
SB Success Rate90.0% · LF
81
Sprint Speed28.2 · LF
72
Mithrandir+ · percentile strip
Avoids Bad ChasesST 61.3%
30
Avoids Bad TakesHPT 27.9%
26
Correct Decisions65.4%
43
SEAGER+ Plate Discipline94
20
Resists Breaking - horizontalwOBA 0.258 · small sample
small sample
Resists Breaking - verticalwOBA 0.315 · thin sample
thin sample
Resists ChangeupwOBA 0.276
Small sample
Resists Cutters + splitterswOBA 0.326 · thin sample
thin sample
Resists FastballwOBA 0.386
Small sample
Resists SinkerwOBA 0.370
Small sample

Context

projection · regression · matchup
Projected range--
RegressionNegative · -0.033
Opposing pitcherBrandon Pfaadt
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-08-31
Palantir 17748 props Brier 0.118 ECE 0.008 14d stable
Fangorn 17748 props Brier 0.118 ECE 0.009 14d stable
Valinor 12111 props Brier 0.112 ECE 0.005 14d stable
Palantir 1556 props Brier 0.248 ECE 0.005 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1052 props Brier 0.248 ECE 0.017 14d error rising
Palantir 8442 props Brier 0.238 ECE 0.048 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 663 props Brier 0.164 ECE 0.032 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 870 props Brier 0.257 ECE 0.062 14d error rising
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)