Mithrandir Metrics
STL 2026-07-10 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-07-10

Jordan Walker

STL · Hitter · bats R · age 24
IN · 3 Negative regression Neutral
MatchupSTL vs ATLChris Sale
Sample1294.0career MLB AB
PROPS 1 available PERCENTILES 27 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 --
Home Run · tracking

No production board publishes this player-market cell today.

Total Bases 0.5
P 55.5
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 62.0% Market 63.0% Gap +7.4pp
BetMGM -170 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%9.6%
94 +29 vs proj
Exit velocity94.3
98
Hard-hit%52.7%
96 +20 vs proj
xBA0.397
96
xSLG0.717
96
xwOBA0.374
94 +52 vs proj
BB%8.1%
44
Bat speed77.3
100
K%25.3%
35
Defense · percentile strip
Arm Runs-0.2 · RF
45
Arm Strength102.0 · RF
99
Outs Above Avg-4.0 · RF
3
Range Runs-3.6 · RF
11
Baserunning · percentile strip
Base Running Runs0.9 · RF
70
Bolts15.0 · RF
76
SB Success Rate81.8% · RF
52
Sprint Speed29.1 · RF
92
Mithrandir+ · percentile strip
Avoids Bad ChasesST 60.9%
28
Avoids Bad TakesHPT 23.7%
65
Correct Decisions65.4%
42
SEAGER+ Plate Discipline98
35
Resists Breaking - horizontalwOBA 0.324 · small sample
small sample
Resists Breaking - verticalwOBA 0.290 · thin sample
thin sample
Resists ChangeupwOBA 0.336
Small sample
Resists Cutters + splitterswOBA 0.360 · thin sample
thin sample
Resists FastballwOBA 0.359
Small sample
Resists SinkerwOBA 0.361
Small sample

Context

projection · regression · matchup
Projected range0.258 to 0.352
RegressionNegative · -0.032
Opposing pitcherChris Sale
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)