Mithrandir Metrics
PIT 2026-07-09 Refreshed Sep 3 06:00 AM ET
Section III · Betting · Player detail · 2026-07-09

Joey Bart

PIT · Hitter
IN · 7 Negative regression Pitcher-Friendly
MatchupPIT vs ATLBryce Elder
Sample1078.0career MLB AB
PROPS 1 available PERCENTILES 24 rows LINEUPS confirmed artifact NO PROSE templated rows only
Strikeouts · Valinor calibration review Last 14d ECE 0.053, 14d stable. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.043, 14d error rising. This flags probability calibration, not a blanket model failure.
Hits · Palantir calibration review Last 14d ECE 0.046, 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 52.5
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 58.3% Market 59.2% Gap +6.7pp
BetMGM -145 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%5.0%
48
Exit velocity86.0
26
Hard-hit%34.4%
30
xBA0.295
24
xSLG0.537
59
xwOBA0.283
26
BB%3.0%
4 -49 vs proj
Bat speed73.2
91
K%30.7%
14
Defense · percentile strip
Blocking Runs0.1 · C
57
Catcher Throwing0.0 · C
56
Framing Runs-1.6 · C
26
Pop Time1.9 · C
68
Baserunning · percentile strip
Sprint Speed26.5 · C
28
Mithrandir+ · percentile strip
Avoids Bad ChasesST 64.5%
Small sample
Avoids Bad TakesHPT 26.0%
Small sample
Correct Decisions64.3%
Small sample
Resists Breaking - horizontalwOBA 0.305 · small sample
small sample
Resists Breaking - verticalwOBA 0.287 · thin sample
thin sample
Resists ChangeupwOBA 0.285
Small sample
Resists Cutters + splitterswOBA 0.329 · thin sample
thin sample
Resists FastballwOBA 0.318
Small sample
Resists SinkerwOBA 0.364
Small sample
SEAGER+ Plate Discipline99
Small sample

Context

projection · regression · matchup
Projected range--
RegressionNegative · -0.063
Opposing pitcherBryce Elder
EnvironmentPitcher-Friendly
Lane calibration receipts
Lane Health 2026-09-03
Palantir 18276 props Brier 0.117 ECE 0.008 14d stable
Fangorn 18276 props Brier 0.118 ECE 0.008 14d stable
Valinor 12618 props Brier 0.112 ECE 0.004 14d stable
Palantir 1610 props Brier 0.248 ECE 0.006 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1106 props Brier 0.248 ECE 0.013 14d stable
Palantir 8710 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 690 props Brier 0.165 ECE 0.033 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 910 props Brier 0.256 ECE 0.058 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)