Mithrandir Metrics
SEA 2026-09-27 Refreshed Sep 27 06:00 AM ET
Section III · Betting · Player detail · 2026-09-27

Josh Naylor

SEA · Hitter · bats L · age 29
IN · 6 Negative regression Pitcher-Friendly
MatchupSEA vs LAAYusei Kikuchi
Sample--career MLB AB
PROPS 3 available PERCENTILES 14 rows LINEUPS confirmed artifact NO PROSE templated rows only
Total Bases · Palantir calibration review Last 14d ECE 0.068, 14d error rising. This flags probability calibration, not a blanket model failure.
Hits · Palantir calibration review Last 14d ECE 0.060, 14d stable. This flags probability calibration, not a blanket model failure.
Tonight's props · all markets for this player
Home Run 0.5
P 12.0
F 13.8
V 15.7
Model 15.3% Market 15.6% Gap -0.8pp
DraftKings 520 tracking Open board
Total Bases 0.5
P 62.5
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 62.5% Market 79.6% Gap +16.6pp
FanDuel 195 tracking Open board
Hits 0.5
P 2.0
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 2.0% Market -- Gap +3.2pp
FanDuel 17500 tracking Open board
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%3.5%
30 -28 vs proj
Exit velocity86.8
38
Hard-hit%35.9%
39 -25 vs proj
xBA0.312
42
xSLG0.442
28
xwOBA0.312
60
BB%6.8%
30 -16 vs proj
Bat speed67.9
29
K%12.3%
96
Defense · percentile strip
Outs Above Avg2.0 · 1B
80
Range Runs1.4 · 1B
70
Baserunning · percentile strip
Base Running Runs-3.0 · 1B
9
SB Success Rate88.9% · 1B
77
Sprint Speed24.3 · 1B
1

Context

projection · regression · matchup
Projected range0.279 to 0.366
RegressionNegative · -0.005
Opposing pitcherYusei Kikuchi
EnvironmentPitcher-Friendly
Lane calibration receipts
Lane Health 2026-09-27
Palantir 21810 props Brier 0.118 ECE 0.004 14d stable
Fangorn 21810 props Brier 0.118 ECE 0.005 14d error falling
Valinor 16122 props Brier 0.114 ECE 0.002 14d stable
Palantir 1972 props Brier 0.248 ECE 0.011 14d error falling
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1468 props Brier 0.248 ECE 0.009 14d stable
Palantir 10537 props Brier 0.239 ECE 0.041 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 850 props Brier 0.166 ECE 0.036 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 1097 props Brier 0.255 ECE 0.052 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)