Mithrandir Metrics
CIN 2026-08-20 Refreshed Sep 1 06:00 AM ET
Section III · Betting · Player detail · 2026-08-20

Tyler Stephenson

CIN · Hitter · bats R · age 30
IN · 4 Negative regression Hitter-Friendly
MatchupCIN vs STLMichael McGreevy
Sample2064.0career MLB AB
PROPS 3 available PERCENTILES 25 rows LINEUPS confirmed artifact NO PROSE templated rows only
Strikeouts · Palantir calibration review Last 14d ECE 0.065, 14d stable. This flags probability calibration, not a blanket model failure.
Strikeouts · Valinor calibration review Last 14d ECE 0.079, 14d error rising. This flags probability calibration, not a blanket model failure.
Total Bases · Palantir calibration review Last 14d ECE 0.047, 14d error rising. This flags probability calibration, not a blanket model failure.
Pitcher Outs · Palantir calibration review Last 14d ECE 0.064, 14d stable. 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 13.6
Model 17.0% Market 12.3% Gap +4.2pp
DraftKings 685 tracking Open board
Total Bases 0.5
P 57.3
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 68.6% Market 69.7% Gap +12.4pp
BetMGM -230 tracking Open board
Hits 1.5
P 17.7
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 17.7% Market -- Gap +9.3pp
FanDuel 270 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%7.9%
86 +20 vs proj
Exit velocity91.4
90
Hard-hit%48.0%
88
xBA0.360
87
xSLG0.667
91
xwOBA0.350
88 +33 vs proj
BB%10.4%
71 +17 vs proj
Bat speed68.8
39
K%26.6%
29
Defense · percentile strip
Blocking Runs2.8 · C
97
Catcher Throwing-0.6 · C
32
Framing Runs-8.8 · C
3
Pop Time2.0 · C
18
Baserunning · percentile strip
Sprint Speed27.0 · C
39
SB Success Rate0.0% · C
Small sample
Mithrandir+ · percentile strip
Avoids Bad ChasesST 75.8%
95
Avoids Bad TakesHPT 23.2%
71
Correct Decisions73.1%
95
SEAGER+ Plate Discipline112
93
Resists Breaking - horizontalwOBA 0.279 · small sample
small sample
Resists Breaking - verticalwOBA 0.274 · thin sample
thin sample
Resists ChangeupwOBA 0.248
Small sample
Resists Cutters + splitterswOBA 0.300 · thin sample
thin sample
Resists FastballwOBA 0.327
Small sample
Resists SinkerwOBA 0.445
Small sample

Context

projection · regression · matchup
Projected range0.272 to 0.355
RegressionNegative · -0.010
Opposing pitcherMichael McGreevy
EnvironmentHitter-Friendly
Lane calibration receipts
Lane Health 2026-09-01
Palantir 17901 props Brier 0.117 ECE 0.008 14d stable
Fangorn 17901 props Brier 0.118 ECE 0.009 14d stable
Valinor 12243 props Brier 0.112 ECE 0.005 14d stable
Palantir 1577 props Brier 0.247 ECE 0.006 14d stable
Fangorn 53 props Brier 0.257 ECE 0.119 sample building
Valinor 1073 props Brier 0.247 ECE 0.016 14d error rising
Palantir 8544 props Brier 0.238 ECE 0.047 14d error rising
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 673 props Brier 0.163 ECE 0.031 14d stable
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 891 props Brier 0.256 ECE 0.060 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)