100k Madrid-Segovia XTREME 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 - 100k Madrid-Segovia XTREME · 2026
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 101.4 | 2,428 m | 101.4 | 2,428 m | 2,169 m | — | Sat 11:00 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
100k Madrid-Segovia XTREME: 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 14h36 to 9h02, and the aid-station stop budget from 0h49 to 0h17. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Source
Below a UTMB® Index of roughly 380, the overall cut-off of 18h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 14h36 | 0h49 | 2 | 876 g | 10.2 L | 7,297 mg | +3h24 |
| 550 | 13h34 | 0h41 | 2 | 814 g | 9.5 L | 6,783 mg | +4h26 |
| 600 | 12h01 | 0h32 | 2 | 721 g | 8.4 L | 6,007 mg | +5h59 |
| 650 | 11h07 | 0h27 | 2 | 667 g | 7.8 L | 5,558 mg | +6h53 |
| 700 | 10h18 | 0h23 | 2 | 618 g | 7.2 L | 5,152 mg | +7h42 |
| 750 | 9h43 | 0h20 | 2 | 583 g | 6.8 L | 4,854 mg | +8h17 |
| 800 | 9h02 | 0h17 | 2 | 542 g | 6.3 L | 4,515 mg | +8h58 |
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
- Mallorca - Serra de Tramuntana (SDT)138 km · 5,453 m D+ · October 30, 2026
- Mallorca - Camins de pedra en sec (CPS)104 km · 3,833 m D+ · October 31, 2026
- Finestrat - GTCB100 km · 6,120 m D+ · November 13, 2026
- Finestrat - UTCB64 km · 3,741 m D+ · November 13, 2026
- Ciudad Real - 50 Millas86 km · 1,098 m D+ · November 20, 2026
- Cehegín - Ultra72 km · 3,631 m D+ · November 28, 2026
- Ibiza - ULTRA SENTIER72 km · 2,368 m D+ · November 28, 2026
- ElCid TrailXtrem - 69 km68 km · 3,676 m D+ · January 16, 2027
- ULTRAMEDITERRANIA TERRES DE TRAIL. Unión Alcoyana Seguros - PRO 160K159 km · 8,104 m D+ · January 22, 2027
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 — 100k Madrid-Segovia XTREME
Weather for 100k Madrid-Segovia XTREME
The weather for 100k Madrid-Segovia XTREME 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 100k Madrid-Segovia XTREME, hour by hour on the courseFrequently asked questions
How many checkpoints?
100k Madrid-Segovia XTREME 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?
100k Madrid-Segovia XTREME is 101 km long with 2428 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 12h01 for 100k Madrid-Segovia XTREME.
What's the weather forecast?
The weather for 100k Madrid-Segovia XTREME 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 100k Madrid-Segovia XTREME?
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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