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2019 World Para Athletics Championships in Dubai, Clifford set a world record time of 3:47.78 in winning the gold medal in the Men's 1500m T13. Clifford and his two guides Tim Logan and Philo Saunders won the Men's 5000m T13.<unk> Clifford with his two guides Tim Logan and Philo Saunders won the Men's 5000m T13.<unk> Clifford with his two guides Tim Logan and Philo Saunders won the Men's 5000m T13.<unk> Clifford stated he needs guides for the 5000m due to his deteriorating eyesight making the event dangerous for him.<unk> Clifford stated he needs guides for the 5000m due to his deteriorating eyesight making the event dangerous for him.