Mithrandir Metrics
CLE 2026-05-30 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-05-30

Gabriel Arias

CLE · Hitter · bats R · age 26
IL60 · 8 Pitcher-Friendly
MatchupCLE vs BOSSonny Gray
Sample--career MLB AB
PROPS 1 available PERCENTILES 22 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 --
Home Run · tracking

No production board publishes this player-market cell today.

Total Bases 0.5
P 55.2
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 55.2% Market 53.8% Gap +1.3pp
FanDuel -125 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%5.7%
59
Exit velocity94.2
97
Hard-hit%50.0%
90 +31 vs proj
xBA0.357
79
xSLG0.707
92
xwOBA0.293
33
BB%9.4%
58 +35 vs proj
Bat speed74.7
97
K%30.2%
12
Defense · percentile strip
Outs Above Avg2.0 · SS
81
Range Runs1.6 · SS
Small sample
Baserunning · percentile strip
Sprint Speed26.5 · SS
28
Mithrandir+ · percentile strip
Avoids Bad ChasesST 71.1%
Small sample
Avoids Bad TakesHPT 23.9%
Small sample
Correct Decisions69.5%
Small sample
Resists Breaking - horizontalwOBA 0.279 · small sample
small sample
Resists Breaking - verticalwOBA 0.301 · thin sample
thin sample
Resists ChangeupwOBA 0.274
Small sample
Resists Cutters + splitterswOBA 0.334 · thin sample
thin sample
Resists FastballwOBA 0.328
Small sample
Resists SinkerwOBA 0.356
Small sample
SEAGER+ Plate Discipline107
Small sample

Context

projection · regression · matchup
Projected range0.246 to 0.345
RegressionNo current flag
Opposing pitcherSonny Gray
EnvironmentPitcher-Friendly
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)