Goring-on-Thames, United Kingdom · Saturday, September 19, 2026

Fixed Distance 50 mi

Chiltern Wonderland 50

Race completed

80 km Distance

5 m Climbing

4.0 Grit · Challenging

51.5232° N, 1.1334° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 0 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 13 hours 9:45 min/km average. Tight. Room to walk the climbs and stop at aid. Tighter than 76% of 50 mi races. Measured against 472 races of the same distance. Cut-off calculator →

Field size ~220 Large. Rarely out of sight of another runner.

DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, September

Daytime high 19°C

Night low 9°C

Rainfall Mostly dry

Daylight 12 h 29 m of light

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

Results history

Year	Race	Finishers	Men's winner	Women's winner
2025	50mi	220	Joseph Turner · 06:18:15	Julia Davis · 07:13:19
2024	50mi	239	Alastair Courtney · 06:32:49	Fiona Slevin-Brown · 08:35:46
2023	50mi	194	Ashley Varley · 07:29:28	Stacey Sangster · 08:21:39
2022	50mi	189	Paul Russhard · 07:00:32	Sophie Biggs · 07:55:08
2021	50mi	184	Jordan Skelly · 07:20:25	Karen Hacker · 08:26:35
2020	50mi	208	Jon Ellis · 06:22:25	Laura Swanton-Rouvelin · 07:37:29
2019	50mi	215	Edward Knudsen · 06:34:20	Rachel Fawcett · 07:59:51
2018	50mi	211	Geoffrey Cheshire · 06:38:49	Amy White · 07:55:07
2017	50mi	187	Jon Ellis · 06:36:58	Rachel Fawcett · 08:41:42
2016	50mi	159	Jon Ellis · 06:25:56	Edwina Sutton · 07:58:03

The field shrank 8% between 2024 (239) and 2025 (220). 23% of the 2025 field were women.

DUV results for the 2025 edition (50mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Course notes

terrain This is a fast & flat course. Expect fast, runnable sections where rhythm is key.
gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 80 km of trail with 5 m of ascent.

Trail Running Shoes 80 km of trail — cushioning that is still there in the last quarter.
Race Nutrition 80 km of self-supported fuelling between aid stations.
Hydration Vests Flask capacity for 80 km, without the bounce.
Headlamps A 13 h limit puts you out there after dark.
GPS Watches Battery life first — a 80 km day outlasts most full-GPS modes.

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

Salomon

Awesome Sauce

Real food gel with 180 calories. Rice-based with natural flavors.

$4 ★★★★★ 4.6

Nathan

VaporKrar 12L

12L race vest co-designed with ultra champion Rob Krar, with insulated bladder pocket.

$170 ★★★★★ 4.6

Nitecore

UT32

Dual-beam trail running headlamp (1100 lumens) with spot and flood beams.

$100 ★★★★★ 4.5

Suunto

Vertical

Titanium GPS watch with solar charging, offline maps, and 140-hour GPS battery.

$630 ★★★★★ 4.5

All gear guides →

Overview

The Chiltern Wonderland 50, a 50-mile trail race organised by Centurion Running, takes place in Goring-on-Thames, United Kingdom, on September 19, 2026. This race has a field size larger than 90% of its 655 peer 50-mile races.

With 5 meters of elevation gain over 80 kilometers, the course offers 0.1 meters of climb per kilometer. The 13-hour cut-off means a pace of 9.8 minutes per kilometer, tighter than 73% of 457 peer 50-mile races. The single-loop course is 80% trail and 20% road.

Similar races

Other 50 mi trail ultras, closest in distance first.