SEGLY
Major new features, significant improvements — and sometimes, the idea comes straight from the field.
Segly now calculates a relative intensity for each segment — from zone 1 (very low) to zone 5 (very high) — by comparing your planned effort speed to your reference speed based on your level. This intensity automatically adjusts the clothing recommendation: in low zones, the perceived temperature is lowered (dress warmer); in high zones, it is raised (dress lighter).
A dedicated module for the runner's support crew — three new pages accessible via a secure sharing link. The crew sees all checkpoints with real-time estimated passage times, can toggle between assistance-only stops and the full route, and enters real passage times on the field (pre-filled with the device's current time). As soon as a real passage is recorded, the estimates for all subsequent points are automatically recalculated. Available in French, English and Spanish.
Access your personal space to manage your profile, view your saved analyses and update your preferences. A centralised hub for all your Segly race plans, reachable in one click from anywhere on the site.
A visual timeline dynamically shows the time distribution across your segments. At a glance, see where the effort concentrates, how the sections balance out and which segment will weigh most on your race.
Choose your preferred unit format — distance in km or miles, speed in min/km or km/h — and Segly remembers it. Your preferences are saved and applied automatically to all your future sessions.
Move the boundary between two segments precisely using a new dedicated modal. A surgical tool for refining your splits to the metre, directly on the map — without having to recreate your segments from scratch.
💡 Idea by Julien
The fatigue factor now adapts to the length of your race: short trail (≤6h), mid trail (6–20h) or long ultra (>20h) — with default values and labels calibrated for each format. The simulation range extends up to ±70% for unlocked accounts.
The Road Book tab now shows an optimistic (−10%) and cautious (+10%) passage range for each segment, alongside the estimated time. This range is also included in the condensed PDF export — giving you a complete race plan with all three scenarios in a single document.
💡 Idea by Julien, Terrain Advisor
Analyse a training run and get 4 realistic race time estimates — slower than your training pace by progressive factors. Perfect for anticipating your competitive performance on the same track.
💡 Idea by Mathias
A library of major races already segmented by the Segly team: UTMB, Templiers, SaintéLyon, Grand Raid, GRF… Import the track directly and find the official segments, key passage points and field data — no setup needed.
Complete overhaul of the manual segment editor. Split, merge, rename and reorder your segments directly on the map with metre-level precision. The most comprehensive segmentation interface available.
Choose how Segly displays your speeds: min/km, km/h or corrected climb pace. The format applies across the whole interface — tables, charts, sharing — to match exactly how you think about racing.
Segly calculates your carbohydrate, sodium and hydration needs segment by segment — accounting for elevation, forecast weather and estimated duration. A nutrition plan built directly into your race plan, ready to share with your support crew.
Access weather forecasts at every point of your route — temperature, wind, precipitation — up to 10 days before the start. No more surprises at altitude at 3am.
Split each segment into sub-segments to refine your plan around an aid station, a technical passage or a key col. The granularity that demanding runners were waiting for, without losing the big-picture readability of the race.
Generate a sharing link to send to your team. They see your segments, estimated passage times, notes and the weather at every point — without needing to create an account.
Enter your ITRA score, UTMB Index, Be Trail level or VMA — Segly calibrates the time estimate to your real profile, factoring in elevation gain, terrain technicality and forecast weather. No more randomly chosen goals.
Each segment displays its real slope profile — with detection of walls over 20%, deceptive false flats and technical descents. A visual read that replaces averages that say nothing about the real terrain.
First public release of Segly. GPX analysis, automatic segmentation, time estimation and elevation visualisation: the foundations of the tool that would become ultra-trail runners' favourite race assistant.