Jordanne Whiley beat Katharine Kruger of Germany to become Britain's first Cruyff Foundation Wheelchair Juniors Masters singles champion.
Whiley is one of Britain's leading hopes for the future
The 14-year-old beat top seed Katharina Kruger of Germany 6-3 6-1 in the final of the event in Tarbes, France.
Whiley also teamed up with Louise Hunt to win the the girls' doubles.
Britain's David Phillipson was the runner-up in the boys' singles but had the consolation of winning the doubles with Gordon Reid.
Whiley had lost the first set 6-0 when she played Kruger at the round-robin stage of the tournament before winning in three.
But it was much easier in the final, where she broke in the eighth game of the first set to win it 6-3.
Whiley then raced to a 4-0 lead in the second set and went on to complete a comfortable 6-3 6-1 win.
Phillipson lost to Nicolas Peifer of France in the final of the boys' event.
One break was enough to give Peifer the first set but Phillipson rallied in the second and at one stage led 5-2.
But the Peifer then won three games in a row to force a tiebreak, which he won 7-3 to win 6-3 7-6 (7-3).
The event took place alongside the the renowned Les Petis As tournament for able-bodies players between the ages of 12 and 14.
Former champions include Rafael Nadal, Richard Gasquet, Martina Hingis and Kim Clijsters.