Mithrandir Metrics
WSH 2026-09-04 Refreshed Sep 4 06:00 AM ET
Section III · Betting · Player detail · 2026-09-04

Keibert Ruiz

WSH · Hitter · bats L · age 28
IN · 5 Negative regression Neutral
MatchupWSH vs LADBlake Snell
Sample2021.0career MLB AB
PROPS 2 available PERCENTILES 24 rows LINEUPS tracking; not posted NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.067, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.067, 14d stable. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.049, 14d error rising. This flags probability calibration, not a blanket model failure.
Hits · Palantir calibration review Last 14d ECE 0.047, 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 7.2
F 10.7
V 7.2
Model 10.8% Market 9.7% Gap +0.8pp
DraftKings 900 tracking Open board
Total Bases 0.5
P 54.1
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 64.1% Market 64.9% Gap +10.8pp
BetMGM -185 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%3.6%
30
Exit velocity87.7
49
Hard-hit%36.6%
42 +24 vs proj
xBA0.276
12
xSLG0.414
18
xwOBA0.284
29
BB%5.1%
15
Bat speed66.0
12
K%10.5%
98
Defense · percentile strip
Blocking Runs-0.2 · C
44
Catcher Throwing-1.9 · C
12
Framing Runs2.0 · C
73
Pop Time2.0 · C
4
Baserunning · percentile strip
Sprint Speed25.1 · C
6
Mithrandir+ · percentile strip
Avoids Bad ChasesST 60.8%
Small sample
Avoids Bad TakesHPT 30.0%
Small sample
Correct Decisions62.9%
Small sample
Resists Breaking - horizontalwOBA 0.330 · small sample
small sample
Resists Breaking - verticalwOBA 0.257 · thin sample
thin sample
Resists ChangeupwOBA 0.274
Small sample
Resists Cutters + splitterswOBA 0.363 · thin sample
thin sample
Resists FastballwOBA 0.360
Small sample
Resists SinkerwOBA 0.339
Small sample
SEAGER+ Plate Discipline92
Small sample

Context

projection · regression · matchup
Projected range0.279 to 0.352
RegressionNegative · -0.065
Opposing pitcherBlake Snell
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-09-04
Palantir 18372 props Brier 0.117 ECE 0.008 14d stable
Fangorn 18372 props Brier 0.117 ECE 0.008 14d stable
Valinor 12714 props Brier 0.112 ECE 0.004 14d stable
Palantir 1629 props Brier 0.248 ECE 0.007 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1125 props Brier 0.248 ECE 0.013 14d stable
Palantir 8804 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 700 props Brier 0.165 ECE 0.033 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 922 props Brier 0.256 ECE 0.059 14d stable
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)