Goring-on-Thames, Oxfordshire, England, United Kingdom · Saturday, October 16, 2027

100 mi

Centurion Autumn 100

343 days away

161 km Distance

1,500 m Climbing

10.0 Grit · Elite / extreme

51.5222° N, 1.1255° W© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 9 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 28 hours 10:26 min/km average. Generous. Walkable throughout for most of the field. Tighter than 85% of 100 mi races. Measured against 46 races of the same distance. Cut-off calculator →

Field size ~175 Mid-sized. Company early, well spread out by halfway.

DUV results for the 2025 edition (100mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 15°C

Night low 7°C

Rainfall Mostly dry

Daylight 10 h 43 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 112 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

🥤 nutrition

For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.

By UltraHub Expert

Gear for this race

Chosen for 161 km of trail with 1,500 m of ascent.

Trail Running Shoes161 km of trail — cushioning that is still there in the last quarter.
Race NutritionPast 161 km the palate quits before the legs do — carry more than one flavour.
Hydration VestsFlask capacity for 161 km, without the bounce.
HeadlampsA 28 h limit puts you out there after dark.
AccessoriesChafe and blisters end more 161 km races than fitness does.

Adidas

Terrex Agravic Speed Ultra

RunRepeat found the Adidas Terrex Agravic Speed Ultra to be perfect for midfoot and forefoot strikers, while iRunFar noted that the shoe feels incredibly effici…

★★★★★ 4.5

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Maurten