London’s “Leith Hill After Party” is an event-only route, meaning it is only available for group events. Very similar in profile to London’s “Keith Hill After Party” route, the Leith Hill version has an extra 5km of flat road before the finishing climb.
This mostly flat route begins in the city with a lap of Greater London Flat in the reverse direction, which diverts onto a nearly-complete reverse lap of the Classique route. We do this again (Greater London into Classique), then hit Greater London Flat for a third time, but before we reach the Classique we hang a right to cross the Thames.
Once across the Thames we head through the Underground tunnel, then hit the final climb, Leith Hill.
The route ends at the KOM banner, so more than half the overall elevation gain is in the final 5km!
Distance: 46.1km (25.8 miles)
Elevation Gain: 411m (1350′)
Strava Forward Segment (from start banner)