One of the women, identified as DSD, was the first of Worboys' victims to make a complaint to police in 2003.
She told ITV News that she felt guilty; if police had believed her, no more women would have been sexually assaulted.
More top news
Over 40,000 people picked up their packs to take part in the annual marathon in the capital.
The boyfriend of reality TV star Ferne McCann has been arrested on suspicion of attempted murder following an alleged nightclub acid attack.
At least 100 firefighters are battling a huge warehouse fire in Essex.