Mithrandir Metrics
SF 2026-08-29 Refreshed Sep 2 06:00 AM ET
Section III · Betting · Player detail · 2026-08-29

Heliot Ramos

SF · Hitter · bats R · age 27
IN · 4 Positive regression Pitcher-Friendly
MatchupSF vs AZMerrill Kelly
Sample1514.0career MLB AB
PROPS 3 available PERCENTILES 22 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 12.5
F 12.4
V 12.8
Model 15.9% Market 13.1% Gap +2.3pp
FanDuel 635 tracking Open board
Total Bases 0.5
P 59.3
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 71.5% Market 72.6% Gap +13.3pp
BetMGM -265 tracking Open board
Hits 1.5
P 19.0
F -- in progress
V -- in progress
INSUFFICIENT LANES
Model 19.0% Market -- Gap +9.6pp
FanDuel 250 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%8.4%
89
Exit velocity92.0
93
Hard-hit%49.6%
93
xBA0.362
88
xSLG0.615
82
xwOBA0.318
65
BB%5.5%
18 -19 vs proj
Bat speed71.1
73
K%27.3%
26 -33 vs proj
Defense · percentile strip
Arm Runs-0.6 · LF
36
Arm Strength92.6 · LF
45
Outs Above Avg-5.0 · LF
4
Range Runs-4.4 · LF
13
Baserunning · percentile strip
Base Running Runs0.9 · LF
63
SB Success Rate80.0% · LF
50
Sprint Speed27.3 · LF
47
Mithrandir+ · percentile strip
Resists Breaking - horizontalwOBA 0.291 · small sample
small sample
Resists Breaking - verticalwOBA 0.257 · thin sample
thin sample
Resists ChangeupwOBA 0.269
Small sample
Resists Cutters + splitterswOBA 0.340 · thin sample
thin sample
Resists FastballwOBA 0.337
Small sample
Resists SinkerwOBA 0.350
Small sample

Context

projection · regression · matchup
Projected range0.310 to 0.375
RegressionPositive · 0.002
Opposing pitcherMerrill Kelly
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)