← Asics London 10K (formerly British 10K)
Great route that takes in some alternative sights to the other popular central London route that Vitality 10000 & Winter Run races use, fairly regular water stations and a decent crowd presence.
Allow loads of time to walk to the start from the bag drop/toilets area and the finish is a long walk back through too. It's an expensive race so unless you REALLY love London routes, you might be better with a cheaper alternative.