Mithrandir Metrics
HOU 2026-09-04 Refreshed Sep 4 06:00 AM ET
Section III · Betting · Player detail · 2026-09-04

Jeremy Peña

HOU · Hitter · bats R · age 29
IN · 1 Negative regression Neutral
MatchupHOU vs AZMerrill Kelly
Sample2553.0career MLB AB
PROPS 2 available PERCENTILES 27 rows LINEUPS tracking; not posted NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.067, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.067, 14d stable. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.049, 14d error rising. This flags probability calibration, not a blanket model failure.
Hits · Palantir calibration review Last 14d ECE 0.047, 14d error rising. This flags probability calibration, not a blanket model failure.
Tonight's props · all markets for this player
Home Run 0.5
P 12.8
F 13.2
V 10.6
Model 17.5% Market 11.2% Gap +6.0pp
DraftKings 765 tracking Open board
Total Bases 0.5
P 65.7
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 82.3% Market 83.3% Gap +17.6pp
BetMGM -500 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%4.6%
46
Exit velocity88.3
55
Hard-hit%39.0%
53
xBA0.361
89
xSLG0.558
68
xwOBA0.331
79 +18 vs proj
BB%5.8%
20
Bat speed70.6
67
K%21.8%
54 -23 vs proj
Defense · percentile strip
Arm Runs0.1 · SS
62
Arm Strength89.2 · SS
66
Outs Above Avg-1.0 · SS
27
Range Runs-0.7 · SS
47
Baserunning · percentile strip
Base Running Runs2.9 · SS
89
Bolts23.0 · SS
76
SB Success Rate90.0% · SS
81
Sprint Speed29.3 · SS
93
Mithrandir+ · percentile strip
Avoids Bad ChasesST 58.2%
17
Avoids Bad TakesHPT 21.7%
81
Correct Decisions65.2%
40
SEAGER+ Plate Discipline97
32
Resists Breaking - horizontalwOBA 0.280 · small sample
small sample
Resists Breaking - verticalwOBA 0.249 · thin sample
thin sample
Resists ChangeupwOBA 0.255
Small sample
Resists Cutters + splitterswOBA 0.329 · thin sample
thin sample
Resists FastballwOBA 0.357
Small sample
Resists SinkerwOBA 0.354
Small sample

Context

projection · regression · matchup
Projected range0.292 to 0.367
RegressionNegative · -0.028
Opposing pitcherMerrill Kelly
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-09-04
Palantir 18372 props Brier 0.117 ECE 0.008 14d stable
Fangorn 18372 props Brier 0.117 ECE 0.008 14d stable
Valinor 12714 props Brier 0.112 ECE 0.004 14d stable
Palantir 1629 props Brier 0.248 ECE 0.007 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1125 props Brier 0.248 ECE 0.013 14d stable
Palantir 8804 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 700 props Brier 0.165 ECE 0.033 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 922 props Brier 0.256 ECE 0.059 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)