By the fourth lap at 4 : 12 he had opened up a 20 metre lead , but on the fifth lap , he was beginning to show signs of fatigue .
With the pack disappearing behind them , Shaheen was cranking out laps at sub-world record pace .
By the fourth lap at 4 : 12 Shaheen had opened up a 20 metre lead , but on the fifth lap , Shaheen was beginning to show signs of fatigue .
With the pack disappearing behind them , Shaheen was cranking out laps at sub-world record pace .