Britain's Hannah Klugman won the prestigious Orange Bowl junior championships at the age of 14.
In October Klugman became the youngest player to qualify for a $100,000 (£80,000) event on the ITF World Tour, and went on to reach the quarter-finals in Shrewsbury.
The record was held by current US Open champion Coco Gauff.
Past winners of the Orange Bowl include future Grand Slam champions Chris Evert, Caroline Wozniacki, Bianca Andreescu and Gauff, who was 14 when she won it in 2018.
"It's an amazing feeling," Klugman said. "I played 14s last year and made the final.