Mithrandir Metrics
AZ 2026-05-19 Refreshed Sep 1 06:00 AM ET
Section III · Betting · Player detail · 2026-05-19

Ketel Marte

AZ · Hitter · bats L · age 33
IN · 2 Positive regression Neutral
MatchupAZ vs SFLanden Roupp
Sample4701.0career MLB AB
PROPS 2 available PERCENTILES 19 rows LINEUPS tracking; not posted 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 14.7
F 17.2
V 14.9
Model 18.5% Market 21.1% Gap -2.5pp
BetMGM 375 tracking Open board
Total Bases 1.5
P 70.2
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 70.2% Market 79.5% Gap -3.7pp
FanDuel -125 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%7.4%
76
Exit velocity91.2
82
Hard-hit%45.8%
74
xBA0.350
74
xSLG0.555
63
xwOBA0.344
76
BB%7.4%
31 -33 vs proj
Bat speed72.9
88
K%16.3%
81
Defense · percentile strip
Arm Runs0.2 · 2B
76
Arm Strength85.8 · 2B
58
Outs Above Avg2.0 · 2B
81
Range Runs1.7 · 2B
71
Baserunning · percentile strip
Base Running Runs0.2 · 2B
48
Sprint Speed26.2 · 2B
24
Mithrandir+ · percentile strip
Avoids Bad ChasesST 70.6%
65
Avoids Bad TakesHPT 25.1%
72
Correct Decisions69.2%
65
SEAGER+ Plate Discipline105
75

Context

projection · regression · matchup
Projected range0.310 to 0.402
RegressionPositive · 0.034
Opposing pitcherLanden Roupp
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)