Mithrandir Metrics
AZ 2026-05-31 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-05-31

Geraldo Perdomo

AZ · Hitter · bats L · age 27
IN · 3 Negative regression Pitcher-Friendly
MatchupAZ vs SEABryce Miller
Sample1991.0career MLB AB
PROPS 3 available PERCENTILES 26 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 14.9
F 14.2
V 14.2
Model 11.8% Market 9.3% Gap +2.1pp
DraftKings 935 tracking Open board
Total Bases 0.5
P 62.8
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 62.8% Market 77.6% Gap +2.6pp
FanDuel 165 tracking Open board
Hits 0.5
P 2.0
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 2.0% Market -- Gap +1.8pp
FanDuel 10000 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%2.5%
20
Exit velocity85.4
16
Hard-hit%32.6%
21
xBA0.298
28
xSLG0.397
17
xwOBA0.326
66
BB%14.6%
94
Bat speed61.9
2
K%12.6%
94
Defense · percentile strip
Arm Runs0.0 · SS
46
Arm Strength89.2 · SS
79
Outs Above Avg4.0 · SS
93
Range Runs3.1 · SS
86
Baserunning · percentile strip
Base Running Runs1.3 · SS
87
SB Success Rate88.9% · SS
79
Sprint Speed26.8 · SS
36
Mithrandir+ · percentile strip
Avoids Bad ChasesST 72.6%
84
Avoids Bad TakesHPT 29.1%
16
Correct Decisions66.3%
50
SEAGER+ Plate Discipline103
66
Resists Breaking - horizontalwOBA 0.287 · small sample
small sample
Resists Breaking - verticalwOBA 0.278 · thin sample
thin sample
Resists ChangeupwOBA 0.260
Small sample
Resists Cutters + splitterswOBA 0.301 · thin sample
thin sample
Resists FastballwOBA 0.386
Small sample
Resists SinkerwOBA 0.339
Small sample

Context

projection · regression · matchup
Projected range0.303 to 0.369
RegressionNegative · -0.025
Opposing pitcherBryce Miller
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)