BALI (Indonesia) (AFP) Belgiums Yanina Wickmayer won a battle of the generations Wednesday over 39-year-old Kimiko Date Krumm 7-6 (7/5), 6-3 in opening group play at the Bali Tournament of Champions. Aravane Rezai earned an opening win for France as she upset fourth seed Sabine Lisicki 1-6, 6-3, 6-4 despite eight aces from the German. The field at the 600 000-dollar tournament comprises the 10 highest ranking players who have won a WTA International title this year but who did not compete in the season-ending WTA Championships in Qatar, which finished Sunday. France are aiming for an opening day double later when top seed Marion Bartoli faces Magdalena Rybarikova of Slovakia. Australian fourth seed Samantha Stosur was beginning her campaign with a match against Hungarys Agnes Szavay. Wickmayer, 20, a surprise US Open semi-finalist two months ago, gave away nearly two decades to her evergreen opponent, who is renewing her career after a decade-long pause. The veteran Japanese, who returned to the WTA in 2008 and claimed lower-level ITF titles in Tokyo and Monzon, Spain last season, capped her comeback by winning Seoul in September to qualify into the Bali field. Asias only entry in the 12-woman event now has it all to do for a possible place in Saturdays semi-finals at the event played inside a huge hotel ballroom on the Indonesian resort island. Date Krumm lost serve five times as her younger European opponent took charge, never allowing the veteran a chance to turn the tide. Wickmayers victory in just over 90 minutes was her 55th of a breakthrough season in which she won both of her career titles. Rezai, winner of the title at Strasbourg before Roland Garros, took one hour 44 minutes to secure victory over the upcoming Lisicki. The Frenchwoman kept the pressure on the 20-year-old German, forcing her to save 11 of 14 break points. Rezai came through to victory despite seven double-faults.