As well as the main event on Saturday 10 September in Rotherhithe (which is directly between the City of London and Canary Wharf, but on the south side of the Thames), there's a warm-up "Park Sprint" in Crystal Palace on the Friday evening, and a warm-down "Urban Sprint" in Soho early on Sunday morning.
Remo, the mapper for Rotherhithe wrote: "I think the area is amazing, better than Canary Wharf or even Wapping. You have the same 'watery' feeling of the other two maps, plus a trickier network of passages... And there's fewer people around for sure. Maybe the best City Race ever."