International Tennis Federation (ITF) released new rankings on Tuesday that place
Vietnam's No.1 young player Nguyen Hoang Thien up in international ranking from 238th to 144th.
The 16-year-old Thien made the leap thanks mostly to his impressive performances at the China Junior 15- Xiamai [Under-18 ITF Grade 2] contest where he finished second on Sunday, September 25.
On Tuesday, Thien took a dramatic 7-5, 7-6 win over Swede player Fred Simonsson, ranked 161st, in the first round of the China Junior 16- Beijing 2011 [U18 ITF Grade 2].
Thien will next clash with the second-seeded Chinese player Gao Xin, ranked 71st on the latest released ITF juniors rankings.