Mithrandir Metrics
CLE 2026-08-20 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-08-20

Bo Naylor

CLE · Hitter · bats L · age 26
OUT · 4 Positive regression Pitcher-Friendly
MatchupCLE vs SFLanden Roupp
Sample--career MLB AB
PROPS 2 available PERCENTILES 24 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 0.5
P 11.1
F 12.2
V 12.5
Model 15.2% Market 13.4% Gap +1.3pp
DraftKings 620 tracking Open board
Total Bases 0.5
P 51.2
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 60.6% Market 61.5% Gap +10.4pp
BetMGM -160 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%6.5%
73 +19 vs proj
Exit velocity90.5
82
Hard-hit%44.6%
77 +26 vs proj
xBA0.287
17
xSLG0.532
60
xwOBA0.290
32
BB%7.4%
37 -24 vs proj
Bat speed70.3
61
K%24.1%
42
Defense · percentile strip
Blocking Runs-0.2 · C
47
Catcher Throwing-0.8 · C
28
Framing Runs-0.5 · C
44
Pop Time2.0 · C
41
Baserunning · percentile strip
Sprint Speed27.3 · C
48
Mithrandir+ · percentile strip
Avoids Bad ChasesST 70.8%
Small sample
Avoids Bad TakesHPT 23.8%
Small sample
Correct Decisions69.7%
Small sample
Resists Breaking - horizontalwOBA 0.260 · small sample
small sample
Resists Breaking - verticalwOBA 0.278 · thin sample
thin sample
Resists ChangeupwOBA 0.287
Small sample
Resists Cutters + splitterswOBA 0.311 · thin sample
thin sample
Resists FastballwOBA 0.296
Small sample
Resists SinkerwOBA 0.364
Small sample
SEAGER+ Plate Discipline107
Small sample

Context

projection · regression · matchup
Projected range0.261 to 0.332
RegressionPositive · 0.041
Opposing pitcherLanden Roupp
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)