Mithrandir Metrics
MIL 2026-07-04 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-07-04

Jackson Chourio

MIL · Hitter · bats R · age 22
IN · 4 Negative regression Hitter-Friendly
MatchupMIL vs AZMerrill Kelly
Sample1300.0career 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 1.5
P 24.2
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 29.9% Market 31.2% Gap +7.1pp
BetMGM 220 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%9.2%
91
Exit velocity92.5
94
Hard-hit%47.6%
84
xBA0.343
71
xSLG0.638
84
xwOBA0.337
74
BB%7.6%
36
Bat speed73.1
90
K%23.9%
41
Defense · percentile strip
Arm Runs0.2 · LF
58
Arm Strength94.1 · LF
62
Outs Above Avg2.0 · LF
88
Range Runs2.2 · LF
75
Baserunning · percentile strip
Base Running Runs0.1 · LF
48
Bolts19.0 · LF
80
Sprint Speed28.7 · LF
86
SB Success Rate100.0% · LF
Small sample
Mithrandir+ · percentile strip
Avoids Bad ChasesST 64.8%
Small sample
Avoids Bad TakesHPT 27.3%
Small sample
Correct Decisions64.3%
Small sample
Resists Breaking - horizontalwOBA 0.298 · small sample
small sample
Resists Breaking - verticalwOBA 0.290 · thin sample
thin sample
Resists ChangeupwOBA 0.305
Small sample
Resists Cutters + splitterswOBA 0.312 · thin sample
thin sample
Resists FastballwOBA 0.356
Small sample
Resists SinkerwOBA 0.384
Small sample
SEAGER+ Plate Discipline98
Small sample

Context

projection · regression · matchup
Projected range0.311 to 0.400
RegressionNegative · -0.073
Opposing pitcherMerrill Kelly
EnvironmentHitter-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)