Mithrandir Metrics
ATL 2026-09-08 Refreshed Sep 11 06:00 AM ET
Section III · Betting · Player detail · 2026-09-08

Michael Harris II

ATL · Hitter · bats L · age 25
IN · 1 Negative regression Hitter-Friendly
MatchupATL vs TBFreddy Peralta
Sample2492.0career MLB AB
PROPS 2 available PERCENTILES 21 rows LINEUPS confirmed artifact NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.060, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.063, 14d stable. This flags probability calibration, not a blanket model failure.
Hits · Palantir calibration review Last 14d ECE 0.062, 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 61.4
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 75.1% Market 76.2% Gap +14.8pp
BetMGM -320 tracking Open board
Hits 1.5
P 18.4
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 18.4% Market -- Gap +16.1pp
FanDuel 190 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%8.1%
87
Exit velocity89.8
75
Hard-hit%49.0%
92
xBA0.364
90
xSLG0.605
81
xwOBA0.341
86
BB%3.5%
6
Bat speed72.8
88
K%19.5%
70
Defense · percentile strip
Arm Runs0.4 · CF
60
Arm Strength94.8 · CF
58
Outs Above Avg0.0 · CF
49
Range Runs10.0 · CF
98
Baserunning · percentile strip
Base Running Runs-2.2 · CF
11
Bolts3.0 · CF
35
SB Success Rate70.0% · CF
26
Sprint Speed27.6 · CF
53
Mithrandir+ · percentile strip
Avoids Bad ChasesST 52.5%
6
Avoids Bad TakesHPT 24.8%
54
Correct Decisions58.8%
6
SEAGER+ Plate Discipline88
9

Context

projection · regression · matchup
Projected range0.315 to 0.385
RegressionNegative · -0.022
Opposing pitcherFreddy Peralta
EnvironmentHitter-Friendly
Lane calibration receipts
Lane Health 2026-09-11
Palantir 19641 props Brier 0.118 ECE 0.006 14d stable
Fangorn 19641 props Brier 0.118 ECE 0.006 14d stable
Valinor 13965 props Brier 0.113 ECE 0.003 14d stable
Palantir 1750 props Brier 0.248 ECE 0.010 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1246 props Brier 0.249 ECE 0.020 14d stable
Palantir 9432 props Brier 0.238 ECE 0.046 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 756 props Brier 0.167 ECE 0.038 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 986 props Brier 0.256 ECE 0.054 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)