Mithrandir Metrics
SF 2026-05-19 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-05-19

Rafael Devers

SF · Hitter · bats L · age 30
IN · 2 Negative regression Neutral
MatchupSF vs AZRyne Nelson
Sample4588.0career MLB AB
PROPS 2 available PERCENTILES 17 rows LINEUPS tracking; not posted NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.053, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.068, 14d stable. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.053, 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 16.0
F 15.5
V 16.6
Model 20.9% Market 19.8% Gap +0.3pp
FanDuel 385 tracking Open board
Total Bases 1.5
P 66.9
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 66.9% Market 74.7% Gap -3.7pp
FanDuel 100 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%5.4%
51 -34 vs proj
Exit velocity90.0
66
Hard-hit%45.7%
73 -22 vs proj
xBA0.316
39
xSLG0.528
55
xwOBA0.266
15 -70 vs proj
BB%6.4%
22 -55 vs proj
Bat speed70.1
58
K%30.2%
11 -26 vs proj
Defense · percentile strip
Outs Above Avg-2.0 · 1B
14
Range Runs-1.6 · 1B
22
Baserunning · percentile strip
Base Running Runs-1.1 · 1B
7
Sprint Speed25.7 · 1B
15
Mithrandir+ · percentile strip
Avoids Bad ChasesST 70.7%
66
Avoids Bad TakesHPT 22.2%
89
Correct Decisions71.3%
85
SEAGER+ Plate Discipline107
88

Context

projection · regression · matchup
Projected range0.307 to 0.398
RegressionNegative · -0.049
Opposing pitcherRyne Nelson
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-09-02
Palantir 18081 props Brier 0.118 ECE 0.008 14d stable
Fangorn 18081 props Brier 0.118 ECE 0.009 14d stable
Valinor 12423 props Brier 0.112 ECE 0.004 14d stable
Palantir 1591 props Brier 0.247 ECE 0.006 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1087 props Brier 0.248 ECE 0.016 14d stable
Palantir 8613 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 683 props Brier 0.163 ECE 0.031 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 900 props Brier 0.256 ECE 0.059 14d error falling
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)