Mithrandir Metrics
NYM 2026-06-13 Refreshed Jun 18 06:00 AM ET
Section III · Betting · Player detail · 2026-06-13

Mark Vientos

NYM · Hitter · bats R · age 27
IN · 4 Positive regression Neutral
MatchupNYM vs ATLMartín Pérez
Sample1285.0career MLB AB
PROPS 3 available PERCENTILES 22 rows LINEUPS confirmed artifact NO PROSE templated rows only
Tonight's props · all markets for this player
Home Run 0.5
P 15.3
F 11.4
V 11.4
Model 17.7% Market 16.0% Gap +1.1pp
FanDuel 500 tracking Open board
Total Bases 0.5
P 36.1
F 56.2 EXPERIMENTAL
V 59.6 EXPERIMENTAL
FULL
Model 36.1% Market 56.6% Gap +2.2pp
FanDuel 250 tracking Open board
Hits 1.5
P 20.6
F 18.8 EXPERIMENTAL
V -- in progress
PARTIAL - 2 of 3 lanes
Model 20.6% Market -- Gap +4.4pp
FanDuel 300 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%7.8%
80
Exit velocity90.3
77
Hard-hit%45.0%
72
xBA0.319
46
xSLG0.595
71
xwOBA0.312
52
BB%3.7%
7 -24 vs proj
Bat speed71.7
77
K%22.4%
47
Defense · percentile strip
Outs Above Avg-5.0 · 1B
4
Range Runs-3.8 · 1B
9
Baserunning · percentile strip
Sprint Speed25.6 · 1B
12
Mithrandir+ · percentile strip
Avoids Bad ChasesST 58.4%
Small sample
Avoids Bad TakesHPT 20.8%
Small sample
Correct Decisions65.8%
Small sample
Resists Breaking - horizontalwOBA 0.278 · small sample
small sample
Resists Breaking - verticalwOBA 0.279 · thin sample
thin sample
Resists ChangeupwOBA 0.287
Small sample
Resists Cutters + splitterswOBA 0.336 · thin sample
thin sample
Resists FastballwOBA 0.301
Small sample
Resists SinkerwOBA 0.347
Small sample
SEAGER+ Plate Discipline98
Small sample

Context

projection · regression · matchup
Projected range0.300 to 0.377
RegressionPositive · 0.029
Opposing pitcherMartín Pérez
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-06-18
Palantir tracking in progress (0 logged)
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 49 props Brier 0.228 ECE 0.190 sample building
Fangorn 13 props Brier 0.239 ECE 0.139 sample building
Valinor 32 props Brier 0.236 ECE 0.220 sample building
Palantir 194 props Brier 0.262 ECE 0.207 sample building
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 2 props Brier 0.560 ECE 0.748 sample building
Fangorn tracking in progress (0 logged)
Valinor tracking in progress (0 logged)
Palantir 40 props Brier 0.249 ECE 0.040 sample building
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)