Mithrandir Metrics
SEA 2026-03-27 Refreshed Sep 3 06:00 AM ET
Section III · Betting · Player detail · 2026-03-27

Rob Refsnyder

SEA · Hitter
Projected · 2 Pitcher-Friendly
MatchupSEA vs CLEGavin Williams
Sample--career MLB AB
PROPS 2 available PERCENTILES 0 rows LINEUPS tracking; not posted NO PROSE templated rows only
Strikeouts · Valinor calibration review Last 14d ECE 0.053, 14d stable. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.043, 14d error rising. This flags probability calibration, not a blanket model failure.
Hits · Palantir calibration review Last 14d ECE 0.046, 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 --
F --
V --
Model 17.0% Market 14.6% Gap +1.8pp
FanDuel 560 tracking Open board
Total Bases 0.5
P 63.0
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 79.4% Market 76.8% Gap -3.5pp
FanDuel -395 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
Insufficient sample

Percentile strips appear after the current-season sample clears the threshold.

Context

projection · regression · matchup
Projected range--
RegressionNo current flag
Opposing pitcherGavin Williams
EnvironmentPitcher-Friendly
Lane calibration receipts
Lane Health 2026-09-03
Palantir 18276 props Brier 0.117 ECE 0.008 14d stable
Fangorn 18276 props Brier 0.118 ECE 0.008 14d stable
Valinor 12618 props Brier 0.112 ECE 0.004 14d stable
Palantir 1610 props Brier 0.248 ECE 0.006 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1106 props Brier 0.248 ECE 0.013 14d stable
Palantir 8710 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 690 props Brier 0.165 ECE 0.033 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 910 props Brier 0.256 ECE 0.058 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)