Diever - Marathon 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 - Diever - Marathon · 2026
| Aid station | Cum. km | Cum. D+ | Seg. km | Seg. D+ | Seg. D- | Crew | Cut-off | Access |
|---|---|---|---|---|---|---|---|---|
| Arrivée | 42.2 | 105 m | 42.2 | 105 m | 105 m | — | Sat 04:00 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.
La feuille de ton assistance pour Diever - Marathon · 2026
Les règles d'assistance de cette course ne sont pas encore connues : tu marqueras tes rendez-vous toi-même.
Recto, verso et planche d'étiquettes, en PDF : l'exemple d'une coureuse de l'UTMB.
Elevation profile
The course and its aid stations
Diever - Marathon: 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 4h10 to 2h41, and the aid-station stop budget from 0h04 to 0h02. 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 405, the overall cut-off of 5h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 4h10 | 0h04 | — | 250 g | 2.9 L | 2,087 mg | +0h50 |
| 550 | 3h50 | 0h03 | — | 230 g | 2.7 L | 1,917 mg | +1h10 |
| 600 | 3h32 | 0h03 | — | 212 g | 2.5 L | 1,764 mg | +1h28 |
| 650 | 3h17 | 0h03 | — | 197 g | 2.3 L | 1,645 mg | +1h43 |
| 700 | 3h05 | 0h02 | — | 185 g | 2.2 L | 1,541 mg | +1h55 |
| 750 | 2h53 | 0h02 | — | 173 g | 2 L | 1,444 mg | +2h07 |
| 800 | 2h41 | 0h02 | — | 161 g | 1.9 L | 1,340 mg | +2h19 |
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
- Hamont-Achel - 25km25 km · 58 m D+ · October 31, 2026
- Diever - 31km32 km · 118 m D+ · December 12, 2026
- Dwingelderveld - 42km42 km · 152 m D+ · December 12, 2026
- Dwingelderveld - 26km27 km · 101 m D+ · December 12, 2026
- Borculo - 31km31 km · 159 m D+ · December 19, 2026
- Borculo - Woest Trail (25km)25 km · 137 m D+ · December 19, 2026
- Borculo - Woest Trail (40km)39 km · 198 m D+ · December 19, 2026
- Nieuwehorne - 33km33 km · 75 m D+ · December 20, 2026
- Berg en Dal - Gelderse Poort Ultra51 km · 784 m D+ · December 26, 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 — Diever - Marathon
Weather for Diever - Marathon
The weather for Diever - Marathon 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 Diever - Marathon, hour by hour on the courseFrequently asked questions
How many checkpoints?
Diever - Marathon 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?
Diever - Marathon is 42 km long with 105 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 3h32 for Diever - Marathon.
What's the weather forecast?
The weather for Diever - Marathon 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 Diever - Marathon?
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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