Mithrandir Metrics
ATL 2026-06-17 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-06-17

Mike Yastrzemski

ATL · Hitter · bats L · age 36
IN · 8 Negative regression Hitter-Friendly
MatchupATL vs SFAdrian Houser
Sample2928.0career 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 19.4
F 17.9
V 17.9
Model 20.3% Market 13.7% Gap +6.1pp
FanDuel 600 tracking Open board
Total Bases 0.5
P 57.6
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 57.6% Market 68.4% Gap +2.2pp
FanDuel 180 tracking Open board
Hits 0.5
P 19.1
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 19.1% Market -- Gap +0.4pp
FanDuel 420 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%2.8%
21 -36 vs proj
Exit velocity90.2
75
Hard-hit%41.9%
61
xBA0.308
34
xSLG0.431
24
xwOBA0.288
30 -29 vs proj
BB%9.5%
60
Bat speed68.8
39
K%24.2%
37
Defense · percentile strip
Arm Runs0.5 · LF
71
Arm Strength89.6 · LF
22
Outs Above Avg1.0 · LF
80
Range Runs-0.7 · LF
40
Baserunning · percentile strip
Base Running Runs0.4 · LF
52
Sprint Speed27.0 · LF
40
Mithrandir+ · percentile strip
Avoids Bad ChasesST 67.2%
Small sample
Avoids Bad TakesHPT 30.2%
Small sample
Correct Decisions63.4%
Small sample
Resists Breaking - horizontalwOBA 0.272 · small sample
small sample
Resists Breaking - verticalwOBA 0.294 · thin sample
thin sample
Resists ChangeupwOBA 0.289
Small sample
Resists Cutters + splitterswOBA 0.321 · thin sample
thin sample
Resists FastballwOBA 0.338
Small sample
Resists SinkerwOBA 0.354
Small sample
SEAGER+ Plate Discipline98
Small sample

Context

projection · regression · matchup
Projected range0.294 to 0.358
RegressionNegative · -0.057
Opposing pitcherAdrian Houser
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)