“London Calling” Route Details (London)
Released in October 2025 to host Zwift Unlocked events, London Calling covers all the same roads as Greatest London Flat, but with some extra riding in other directions and different start/finish lines.
Released in October 2025 to host Zwift Unlocked events, London Calling covers all the same roads as Greatest London Flat, but with some extra riding in other directions and different start/finish lines.
Route Basics
Length: 31.2 km (19.4 miles)
Elevation: 207m (679‘)
+0.5km (0.3 miles) lead-in with 4m (13‘) elevation
Map: London
ZIMetrics
Rating: 15.1/100 🛈
Time Estimates 🛈
lead-in + first lap
2 W/kg: 60 minutes
3 W/kg: 49 minutes
4 W/kg: 45 minutes
Start & Finish
Starts from the London pens in the standard CCW direction, and ends at the London lap arch.
Achievement Badge: 625 XP
Sprint & KQOM Segments |
The Mall Sprint Reverse (0.2km, 1.1%) |
Strava Segments
Route Description
Starting from the London lap arch, we travel west on the well-worn road along the Thames, following the “Greater London” loop counter-clockwise before turning into the Classique for a loop in the reverse direction.
After finishing the Classique reverse sprint, we turn left at the roundabout to head back onto the Greater London loop in the other direction, coming back to the Thames for a bit before turning right to cross the bridge to the Underground station.
Exiting the station, we’ll stay left to the finish, taking the flattest roads around to the other Underground station before crossing the Tower Bridge and finishing our lap.