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Otter Retto 2026 — Finish Time Predictor v6
Predictive model v6 · Otter Trail · Extreme category · Race Validation Edition

Otter Retto 2026 — Finish Time Predictor

42.1km · 2,400m vert · 57 m/km density · 9h Race / 11h Challenge cut-off · Max HR 172 bpm
v6 update: Field distribution curve · Record reference lines · Percentile positioning · 2023–2025 validation data integrated | B1–B5 confirmed actuals · B6 live
Race distance
42.1 km
2,400m vert gain
Vert density
57 m/km
Race target — W24 definitive test
Retto record ♀
4h 40m
Toni McCann · 2024
Your B6 target
7h 30m
Sub-8h · Extreme category
Finish band probabilities
Model signals
Components (min added to 7h30 anchor)
Predicted finish distribution — all blocks
Field context — your trajectory vs race field & records Estimated field · 2023–2025 podium data · Retto W→E direction
Race results validation — 2023–2025 podium data Sources: otter.run · ITRA · race reports
Year / Edition Category Name Time Direction Notes
Model v6: HR efficiency on long runs · vert density gap to race (57 m/km) · distance readiness vs 42.1km · accumulated volume · illness penalty · MSR-driven durability penalty. Anchor: 7h30m for a well-prepared Extreme category finisher. Sigma narrows each block as race approaches. Field distribution: Estimated from 2025 Classic Race (254 finishers, ITRA). Directional note: Retto (W→E) ~6–8min slower than Classic (E→W) — your race is Retto. Record reference: Retto Men’s record ~4h05m (J. van Heerden) · Retto Women’s record 4h40m30s (T. McCann, 2024). Not a certified prediction — directional signal only. Right lateral hip chain asymmetry (VALD confirmed) not modelled explicitly. Generated:
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