Mithrandir Metrics
SEA 2026-07-31 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-07-31

Randy Arozarena

SEA · Hitter · bats R · age 31
IN · 2 Negative regression Neutral
MatchupSEA vs MINZebby Matthews
Sample3287.0career MLB AB
PROPS 2 available PERCENTILES 26 rows LINEUPS confirmed artifact 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 13.8
F 13.7
V 12.6
Model 17.4% Market 13.8% Gap +3.0pp
FanDuel 595 tracking Open board
Total Bases 0.5
P 59.0
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 70.8% Market 71.8% Gap +12.9pp
BetMGM -255 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%5.5%
60 -20 vs proj
Exit velocity90.8
84
Hard-hit%41.8%
63 -25 vs proj
xBA0.351
79
xSLG0.562
68
xwOBA0.349
86
BB%9.5%
63
Bat speed68.8
38
K%21.5%
54
Defense · percentile strip
Arm Runs-1.8 · LF
9
Arm Strength90.7 · LF
27
Outs Above Avg-3.0 · LF
6
Range Runs-3.0 · LF
18
Baserunning · percentile strip
Base Running Runs2.2 · LF
89
SB Success Rate85.0% · LF
64
Sprint Speed26.9 · LF
36
Mithrandir+ · percentile strip
Avoids Bad ChasesST 64.2%
43
Avoids Bad TakesHPT 25.4%
46
Correct Decisions64.6%
34
SEAGER+ Plate Discipline99
41
Resists Breaking - horizontalwOBA 0.303 · small sample
small sample
Resists Breaking - verticalwOBA 0.302 · thin sample
thin sample
Resists ChangeupwOBA 0.324
Small sample
Resists Cutters + splitterswOBA 0.337 · thin sample
thin sample
Resists FastballwOBA 0.340
Small sample
Resists SinkerwOBA 0.385
Small sample

Context

projection · regression · matchup
Projected range0.277 to 0.369
RegressionNegative · -0.047
Opposing pitcherZebby Matthews
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)