He defeated Hamza Roman 6-4,6-4 in the boys’ singles final

He became one of only three men ever to surpass 100 career titles

The 38-year-old will be replaced in the Jimmy Connors Group by Lorenzo Musetti

She beat world number one 6-3, 7-6 (7/0) to become the first Asian player to win year-end singles trophy

The top two players are almost certain to qualify from their respective Bjorn Borg and Jimmy Connors groups

The 38-year-old Serb took 79 minutes to dispatch Hanfmann

The Kazakh fired 15 aces and won 73 percent of her first-serve points on her way to a hard-fought win.

She clocked 12 aces and saved six of nine break points to book her place in the final for a second time

He has not played since losing in the second round of the Miami Open in March

She arrived for the clash after victories over Amanda Anisimova and Iga Swiatek