Mithrandir Metrics
DET 2026-05-21 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-05-21

Riley Greene

DET · Hitter · bats L · age 26
IN · 4 Negative regression Pitcher-Friendly
MatchupDET vs CLEJoey Cantillo
Sample2043.0career MLB AB
PROPS 2 available PERCENTILES 20 rows LINEUPS tracking; not posted 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 0.5
P 10.1
F 15.5
V 16.6
Model 15.4% Market 17.4% Gap -2.0pp
BetMGM 475 tracking Open board
Total Bases 1.5
P 59.1
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 59.1% Market 70.9% Gap -3.5pp
FanDuel 155 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%8.0%
80
Exit velocity90.9
81
Hard-hit%50.4%
89
xBA0.411
97
xSLG0.734
94
xwOBA0.390
93
BB%12.4%
81 +35 vs proj
Bat speed73.8
94
K%26.5%
29
Defense · percentile strip
Arm Runs-1.0 · LF
17
Arm Strength86.1 · LF
8
Outs Above Avg-2.0 · LF
7
Range Runs-1.7 · LF
21
Baserunning · percentile strip
Base Running Runs0.5 · LF
69
Sprint Speed26.8 · LF
37
SB Success Rate50.0% · LF
Small sample
Mithrandir+ · percentile strip
Avoids Bad ChasesST 64.7%
34
Avoids Bad TakesHPT 23.3%
85
Correct Decisions69.1%
63
SEAGER+ Plate Discipline102
53

Context

projection · regression · matchup
Projected range0.311 to 0.392
RegressionNegative · -0.065
Opposing pitcherJoey Cantillo
EnvironmentPitcher-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)