Durban - Defending champion Caroline Wostmann was involved in a collision involving two motorbikes while in the lead in the finishing stages of the Comrades Marathon on Sunday morning.
From footage Wostmann can be seen striding very slightly to her left with one of the motorbikes that accompany the front runners with the support bikes driving close to her and trying to swerve as their paths crossed.
A second motorbike behind them also braked and fell sideways on to the ground. Wostmann, who runs for the KPMG team, paused slightly but carried on running, waving her hand in the air.
KPMG marketeing director Pierre Jacobs said he wasn't there but had seen pictures of it and a short clip on the news when a bike drove into the back of her.
Wostmann bravely carried on running, slowing down from time to time, with other runners passing her.
''She is cramping very badly and she is not a good space,'' said a worried Jacobs.
Asked whether he would take action action against the bikers, he said: ''No, I have no interest in anything but seeing Caroline get over the finish line,'' said Jacobs.
In the meantime supporters screamed support for her and armchair runners tweeted for her.
Wostmann eventually finished in a courageous second place in a time of 6:30.44.
Compatriot Charne Bosman took the victory in 6:25.55.