Mithrandir Metrics
WSH 2026-08-31 Refreshed Aug 31 06:00 AM ET
Section III · Betting · Player detail · 2026-08-31

Keibert Ruiz

WSH · Hitter · bats L · age 28
IN · 4 Negative regression Neutral
MatchupWSH vs MIARyan Gusto
Sample2016.0career MLB AB
PROPS 3 available PERCENTILES 24 rows LINEUPS confirmed artifact NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.061, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.077, 14d error rising. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.045, 14d error rising. This flags probability calibration, not a blanket model failure.
Pitcher Outs · Palantir calibration review Last 14d ECE 0.077, 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 10.2
F 11.9
V 10.0
Model 15.8% Market 9.8% Gap +5.6pp
DraftKings 880 tracking Open board
Total Bases 0.5
P 46.8
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 46.8% Market 70.2% Gap +12.5pp
FanDuel 145 tracking Open board
Hits 1.5
P 20.8
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 20.8% Market -- Gap +3.6pp
FanDuel 310 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%3.7%
31
Exit velocity87.7
48
Hard-hit%36.4%
41 +24 vs proj
xBA0.274
11
xSLG0.409
16
xwOBA0.283
27
BB%5.2%
16
Bat speed66.0
12
K%10.4%
98
Defense · percentile strip
Blocking Runs-0.0 · C
54
Catcher Throwing-1.9 · C
12
Framing Runs1.8 · C
72
Pop Time2.0 · C
4
Baserunning · percentile strip
Sprint Speed25.1 · C
6
Mithrandir+ · percentile strip
Avoids Bad ChasesST 61.0%
Small sample
Avoids Bad TakesHPT 29.8%
Small sample
Correct Decisions63.0%
Small sample
Resists Breaking - horizontalwOBA 0.332 · small sample
small sample
Resists Breaking - verticalwOBA 0.258 · thin sample
thin sample
Resists ChangeupwOBA 0.268
Small sample
Resists Cutters + splitterswOBA 0.358 · thin sample
thin sample
Resists FastballwOBA 0.362
Small sample
Resists SinkerwOBA 0.339
Small sample
SEAGER+ Plate Discipline92
Small sample

Context

projection · regression · matchup
Projected range0.279 to 0.352
RegressionNegative · -0.066
Opposing pitcherRyan Gusto
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-08-31
Palantir 17748 props Brier 0.118 ECE 0.008 14d stable
Fangorn 17748 props Brier 0.118 ECE 0.009 14d stable
Valinor 12111 props Brier 0.112 ECE 0.005 14d stable
Palantir 1556 props Brier 0.248 ECE 0.005 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1052 props Brier 0.248 ECE 0.017 14d error rising
Palantir 8442 props Brier 0.238 ECE 0.048 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 663 props Brier 0.164 ECE 0.032 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 870 props Brier 0.257 ECE 0.062 14d error rising
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)