Centurion A100 2026
The forecast arrives five days before the start.
Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 16 aid stations to plan your nutrition and hydration segment by segment.
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 - Centurion A100 · 2026
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
| Product | Wallingford 1km 10.6 | Little Wittenhamkm 19.4 | Wallingford 2km 28.1 | Goring 1km 39.1 | North Stoke 1km 46.1 | Swyncombekm 58.4 | North Stoke 2km 70.6 | Goring 2km 77.7 | East Ilsley Down 1km 87.8 | Chain Hillkm 98.0 | East Ilsley Down 2km 108.7 | Goring 3km 118.3 | Pangbourne 1km 125.1 | Readingkm 138.3 | Pangbourne 2km 151.5 | Finishkm 158.3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Water | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ |
| Brand products | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | ✕ | unavailable | ✕ | ✕ | ✕ | unavailable |
| Hot meal | unavailable | unavailable | unavailable | unavailable | unavailable | unavailable | unavailable | unavailable | unavailable | unavailable | unavailable | ✕ | unavailable | unavailable | unavailable | ✕ |
Elevation profile
The course and its aid stations
Centurion A100: 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 23h38 to 14h20, and the aid-station stop budget from 1h20 to 0h27. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.
Below a UTMB® Index of roughly 395, the overall cut-off of 28h00 is no longer reachable at the estimated pace.
| UTMB® Index | Estimated time | Of which stops | Night hours | Carbs | Fluid | Sodium | Cut-off margin |
|---|---|---|---|---|---|---|---|
| 500 | 23h38 | 1h20 | 10 | 1,418 g | 16.5 L | 11,814 mg | +4h22 |
| 550 | 22h01 | 1h06 | 10 | 1,321 g | 15.4 L | 11,010 mg | +5h59 |
| 600 | 19h42 | 0h53 | 7.7 | 1,182 g | 13.8 L | 9,851 mg | +8h18 |
| 650 | 17h59 | 0h44 | 6 | 1,079 g | 12.6 L | 8,990 mg | +10h01 |
| 700 | 16h45 | 0h37 | 4.8 | 1,005 g | 11.7 L | 8,373 mg | +11h15 |
| 750 | 15h29 | 0h32 | 3.5 | 929 g | 10.8 L | 7,740 mg | +12h31 |
| 800 | 14h20 | 0h27 | 2.3 | 860 g | 10 L | 7,168 mg | +13h40 |
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
- North Coast 110170 km · 4,705 m D+ · November 7, 2026
- Spine Challenger North242 km · 6,465 m D+ · January 10, 2027
- Arc of Attrition - Arc 100M173 km · 5,318 m D+ · January 22, 2027
- Ultra-Trail Snowdonia - Eryri 100M164 km · 9,356 m D+ · May 14, 2027
- Eryri by UTMB® - Eryri 100M®164 km · 9,356 m D+ · May 14, 2027
- Ultra-Trail Snowdonia - Eryri 100K107 km · 5,518 m D+ · May 15, 2027
- Eryri by UTMB® - Eryri 100K®107 km · 5,518 m D+ · May 15, 2027
- UK Ultra South Downs 100 Mile162 km · 3,466 m D+ · October 3, 2026
- 7 Valleys Ultra109 km · 3,906 m D+ · September 26, 2026
Sources and method
- Time projection — les temps par cote sont repris des passages réels des coureurs de chaque tranche sur les éditions précédentes de cette course, arrêts aux ravitaillements compris. Aucune formule n'intervient tant que ces résultats existent.
- 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 — Centurion A100
Weather for Centurion A100
Section-by-section forecasts for Centurion A100, calculated at the estimated passing time: feels-like temperature, rain or snow, wind and thunderstorms. Three models — AROME (Météo-France), ICON (DWD) and ECMWF IFS — served from the finest to the farthest-reaching.
Forecast, not guaranteed: in the mountains a model describes a grid of several hundred meters, not the slope you're on.
Données météo : Météo-France (AROME), DWD (ICON), ECMWF (IFS) — CC BY 4.0, via Open-Meteo
Frequently asked questions
How many checkpoints?
Centurion A100 has 16 checkpoints: 16 aid stations. Details are in the two tables above.
What's the longest segment without aid?
The one leading to Reading: 13.2 km and 36 m elevation gain. That's the one to load up for first.
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?
Centurion A100 is 158 km long with 1087 m of elevation gain.
How long to finish?
With a UTMB Index of 600 (average runner), the estimated time is around 19h42 for Centurion A100.
What's the weather forecast?
RAVIT publishes the weather for Centurion A100 section by section: feels-like temperature, rain or snow, wind and storms, at the estimated passage time. Forecasts come from AROME (Météo-France), ICON (DWD) and ECMWF IFS, refreshed several times a day.
Want to stack the odds in your favor for Centurion A100?
In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.
No card required · Instant results