American Coco Gauff had a bitterly disappointing summer but on Saturday the youngster was able to celebrate lifting her first WTA Finals trophy, regaining her confidence after a string of frustrating defeats to end her year on a high note.

Gauff capped her year with the WTA Finals trophy, while two unexpected champions won titles and Medvedev had an epic meltdown.

Coco Gauff has wrapped up her season as well as possible. She won the WTA Finals and the $4.8 million check that came with the trophy and defeated the women ranked Nos. 1 and 2 along the way.