Mithrandir Metrics
MIN 2026-07-19 Refreshed Jul 21 06:00 AM ET
Section III · Betting · Player detail · 2026-07-19

Matt Wallner

MIN · Hitter · bats L · age 29
tracking · 2 Negative regression Neutral
MatchupMIN vs CHCShota Imanaga
Sample--career MLB AB
PROPS 1 available PERCENTILES 24 rows LINEUPS confirmed artifact NO PROSE templated rows only
Palantir calibration review active Last 14d ECE 0.109, 14d error rising. This flags probability calibration, not a blanket model failure.
Valinor calibration review active Last 14d ECE 0.080, 14d error rising. This flags probability calibration, not a blanket model failure.
Palantir calibration review active Last 14d ECE 0.059, 14d error rising. This flags probability calibration, not a blanket model failure.
Palantir calibration review active Last 14d ECE 0.077, 14d stable. 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 53.0
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 58.9% Market 60.0% Gap +7.0pp
BetMGM -150 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%6.0%
65 -18 vs proj
Exit velocity89.2
64
Hard-hit%42.3%
64 -15 vs proj
xBA0.358
83
xSLG0.597
75
xwOBA0.281
24 -50 vs proj
BB%7.9%
43 -32 vs proj
Bat speed72.9
88
K%37.1%
2
Defense · percentile strip
Arm Runs-1.8 · RF
9
Arm Strength99.3 · RF
93
Outs Above Avg-4.0 · RF
4
Range Runs-3.2 · RF
17
Baserunning · percentile strip
Sprint Speed26.0 · RF
18
Mithrandir+ · percentile strip
Avoids Bad ChasesST 60.2%
Small sample
Avoids Bad TakesHPT 24.2%
Small sample
Correct Decisions64.4%
Small sample
Resists Breaking - horizontalwOBA 0.258 · small sample
small sample
Resists Breaking - verticalwOBA 0.275 · thin sample
thin sample
Resists ChangeupwOBA 0.279
Small sample
Resists Cutters + splitterswOBA 0.334 · thin sample
thin sample
Resists FastballwOBA 0.307
Small sample
Resists SinkerwOBA 0.364
Small sample
SEAGER+ Plate Discipline97
Small sample

Context

projection · regression · matchup
Projected range0.289 to 0.384
RegressionNegative · -0.041
Opposing pitcherShota Imanaga
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-07-21
Palantir 10338 props Brier 0.125 ECE 0.008 14d error falling
Fangorn 10338 props Brier 0.125 ECE 0.009 14d error falling
Valinor 4743 props Brier 0.121 ECE 0.003 14d stable
Palantir 860 props Brier 0.248 ECE 0.035 14d error rising
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 356 props Brier 0.249 ECE 0.041 14d error rising
Palantir 4739 props Brier 0.240 ECE 0.076 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 288 props Brier 0.176 ECE 0.047 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 462 props Brier 0.260 ECE 0.055 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)