Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile and an estimated finish time based on your UTMB Index.
What's your time based on your UTMB?
Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.
Cut-off times and crew - Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT · 2026
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 22.5 | 2,184 m | 22.5 | 2,184 m | 2,184 m | — | Sat 05:00 PM |
Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.
What you'll find at each aid station
Aid station contents not documented.
Elevation profile
The course and its aid stations
Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT: times, aid-station stops and fuelling needs by UTMB® Index
Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 4h22 to 2h53, and the aid-station stop budget from 0h06 to 0h02. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 4h22 | 0h06 | — | 262 g | 3.1 L | 2,186 mg | +2h38 |
| 550 | 3h55 | 0h04 | — | 235 g | 2.7 L | 1,956 mg | +3h05 |
| 600 | 3h37 | 0h04 | — | 217 g | 2.5 L | 1,812 mg | +3h23 |
| 650 | 3h25 | 0h03 | — | 205 g | 2.4 L | 1,706 mg | +3h35 |
| 700 | 3h13 | 0h03 | — | 193 g | 2.3 L | 1,612 mg | +3h47 |
| 750 | 3h04 | 0h02 | — | 184 g | 2.1 L | 1,531 mg | +3h56 |
| 800 | 2h53 | 0h02 | — | 173 g | 2 L | 1,443 mg | +4h07 |
Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.
Other trails worth preparing for
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- L'Alba dei Marsi - Sky Race del Maglio30 km · 2,049 m D+ · October 18, 2026
- Panoramic Trail - 17k17 km · 1,570 m D+ · October 18, 2026
- Trail delle Cesane - 22 Km22 km · 1,249 m D+ · October 18, 2026
- Panoramic Trail - 30k29 km · 2,188 m D+ · October 18, 2026
- Trail del Diamante Memorial Cristiano Capelli - Trail del Diamante 24K24 km · 1,332 m D+ · October 18, 2026
- Valle dei Segni Wine Trail - HALF TRAIL 18K19 km · 1,201 m D+ · October 24, 2026
- Bellagio Skyrace28 km · 1,926 m D+ · October 25, 2026
- Bellagio Skyrace - Bellagio Half Skyrace17 km · 1,024 m D+ · October 25, 2026
Sources and method
- Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
- Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
- Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT
Weather for Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT
The weather for Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.
Detailed weather for Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT, hour by hour on the courseFrequently asked questions
How many checkpoints?
Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT has 1 checkpoint: 1 checkpoint with undocumented contents. Details are in the two tables above.
How do I find the exact location of an aid station?
The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.
What distance and elevation gain?
Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT is 23 km long with 2184 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 3h37 for Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT.
What's the weather forecast?
The weather for Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.
Want to stack the odds in your favor for Trail Grigne Sud - TGS Extreme - TGS Sprint - Trail Grigne Sud SPRINT?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
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