paula radcliffe finished in 2:36.55 but said the time did n't matter .
the world record holder began at the front of the mass start .
she had barely run since february due to an achilles injury .
radcliffe was the 199th woman to finish the race on sunday .
she was first to receive the race 's lifetime achievement award .
earlier in the day ethiopian tigist tufa won the women 's elite race .
eliud kipchoge won the men 's race in a kenyan top three .