 Complete the following phrase:  In May 2015, she confirmed herself as the continents best 400 m runner in her age group with a gold medal at the 2015 Asian Youth Championships. In June while in Bulgaria, she set national junior records in the 100 m and 200 m clocking 11.70 s and 23.03 s respectively. Eid Naser then proved herself among the best globally in the 400 m at the 