Organisers of a university fun run have been accused of sexism for their different treatment of male and female winners.

25-year-old Alex Blake was the fastest female runner. She has called out organisers of the Queensland University of Technology Classic fun run for awarding male winners a ribbon crossing and $300 cheques while the female winners only received a prize pack.

QUT Classic eventually agreed to restructure winnings after the race director initially told Blake to finish top 3 if she wanted greater reward.