Mithrandir Metrics
MIL 2026-06-09 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-06-09

William Contreras

MIL · Hitter · bats R · age 29
IN · 3 Negative regression Neutral
MatchupMIL vs ATHJ.t. Ginn
Sample2449.0career MLB AB
PROPS 1 available PERCENTILES 25 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 18.9
F 17.9
V 17.9
Model 19.8% Market 12.6% Gap +6.8pp
DraftKings 670 tracking Open board
Total Bases --
Total Bases · tracking

No production board publishes this player-market cell today.

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%6.5%
68
Exit velocity90.4
77
Hard-hit%43.3%
64 -21 vs proj
xBA0.325
53
xSLG0.504
46
xwOBA0.335
71
BB%8.0%
40 -30 vs proj
Bat speed71.4
75
K%12.7%
93 +23 vs proj
Defense · percentile strip
Blocking Runs-0.4 · C
26
Catcher Throwing3.4 · C
100
Framing Runs-1.4 · C
26
Pop Time1.9 · C
68
Baserunning · percentile strip
Sprint Speed25.1 · C
6
SB Success Rate50.0% · C
Small sample
Mithrandir+ · percentile strip
Avoids Bad ChasesST 67.2%
59
Avoids Bad TakesHPT 22.3%
76
Correct Decisions68.0%
68
SEAGER+ Plate Discipline105
71
Resists Breaking - horizontalwOBA 0.279 · small sample
small sample
Resists Breaking - verticalwOBA 0.283 · thin sample
thin sample
Resists ChangeupwOBA 0.292
Small sample
Resists Cutters + splitterswOBA 0.358 · thin sample
thin sample
Resists FastballwOBA 0.337
Small sample
Resists SinkerwOBA 0.372
Small sample

Context

projection · regression · matchup
Projected range0.294 to 0.387
RegressionNegative · -0.038
Opposing pitcherJ.t. Ginn
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)