Mithrandir Metrics
PIT 2026-06-12 Refreshed Jun 12 06:00 AM ET
Section III · Betting · Player detail · 2026-06-12

Spencer Horwitz

PIT · Hitter · bats L · age 29
IN · 1 Negative regression Neutral
MatchupPIT vs MIASandy Alcantara
Sample937.0career MLB AB
PROPS 3 available PERCENTILES 24 rows LINEUPS confirmed artifact NO PROSE templated rows only
Tonight's props · all markets for this player
Home Run 0.5
P 14.4
F 15.5
V 15.5
Model 16.2% Market 11.3% Gap +4.5pp
DraftKings 755 tracking Open board
Total Bases 0.5
P 47.3
F 67.0 EXPERIMENTAL
V 66.2 EXPERIMENTAL
FULL
Model 47.3% Market 65.1% Gap +2.0pp
FanDuel 110 tracking Open board
Hits 1.5
P 18.2
F 18.2 EXPERIMENTAL
V -- in progress
PARTIAL - 2 of 3 lanes
Model 18.2% Market -- Gap +13.0pp
FanDuel 220 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%5.8%
59
Exit velocity86.3
26
Hard-hit%32.8%
23
xBA0.274
12
xSLG0.454
30
xwOBA0.334
70
BB%13.5%
90 +27 vs proj
Bat speed67.3
23
K%12.4%
94 +18 vs proj
Defense · percentile strip
Outs Above Avg1.0 · 1B
70
Range Runs0.2 · 1B
51
Baserunning · percentile strip
Base Running Runs-1.5 · 1B
9
Sprint Speed24.7 · 1B
3
SB Success Rate100.0% · 1B
Small sample
Mithrandir+ · percentile strip
Avoids Bad ChasesST 70.5%
75
Avoids Bad TakesHPT 25.9%
41
Correct Decisions66.1%
48
SEAGER+ Plate Discipline105
70
Resists Breaking - horizontalwOBA 0.308 · small sample
small sample
Resists Breaking - verticalwOBA 0.309 · thin sample
thin sample
Resists ChangeupwOBA 0.290
Small sample
Resists Cutters + splitterswOBA 0.342 · thin sample
thin sample
Resists FastballwOBA 0.347
Small sample
Resists SinkerwOBA 0.368
Small sample

Context

projection · regression · matchup
Projected range0.299 to 0.352
RegressionNegative · -0.067
Opposing pitcherSandy Alcantara
EnvironmentNeutral
Lane calibration receipts
Lane Health 2026-06-12
Palantir 5214 props Brier 0.124 ECE 0.004 14d stable
Fangorn 5214 props Brier 0.125 ECE 0.010 14d stable
Valinor 1176 props Brier 0.125 ECE 0.013 sample building
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)