Playing in the group ahead of McGrane , Newcastle based Thornton birdied the 14th , 15th and 16th to reach 10 under par .
An unfortunate three - putt bogey at the last dropped McGrane back to nine under for the tournament .
Playing in the group ahead of McGrane , Newcastle based Thornton birdied the 14th , 15th and 16th to reach 10 under par but an unfortunate three - putt bogey at the last dropped him back to nine under for the tournament .