A 146.8km road loop from Westminster over Leith Hill and Box Hill, with 1,147m of climbing.
- Distance
- 146.8 km
- Elevation
- 1,147 m
- Terrain
- Hilly
- Type
- Road loop
Start and finish: Near Big Ben, Westminster
About this route
This route was designed by the organisers of RideLondon, not by London Dynamo.
Sportive routes change from year to year, and this page follows the route file we hold. RideLondon took a break in 2025, and we have not found a later edition of the Surrey 100.
On the route
The RideLondon Surrey 100 was a closed-road sportive from London into the Surrey Hills. This version starts and finishes near Big Ben in Westminster. It climbs Leith Hill at about 73km and Box Hill at about 89km, the two big hills of the day.
The route measures 146.8km with 1,147m of climbing, which gives it a Terrain label of Hilly. Its notable climbs are listed below.
This page is for riding the route outside the sportive, on your own or with friends. There are no organised feed stops, so plan your food and water for the day.
Event names and logos belong to their owners and are shown for identification only. London Dynamo is not affiliated with these events.
Notable climbs
- Climb near 57km: 2.5km at 3.3% average.
- Leith Hill: 2km at 8.3% average.
- Box Hill: 2.3km at 5.2% average.
- Steep ramps: 125m at 11% average (c. 68km), 75m at 12.2% average (c. 80km), and 100m at 12.8% average (c. 127km).
Strava Verified Segment: length and average gradient come from the segment.
Route map and GPX
To download the GPX or TCX file, open the route on Strava with View on Strava below the map, choose the three dots menu, then Export GPX or Export TCX. A free Strava account is needed. Route checked against Strava on 27 October 2026.