Jamie Mackenzie

Jamie Mackenzie (born 15 January 2008) is a German tennis player. He has a career-high ATP singles ranking of No. 573 and a doubles ranking of No. 1,186, both achieved on 3 August 2026.

He competed with compatriot Niels McDonald in the boys' doubles at the 2025 Wimbledon Championships where they were third seeds but lost to Jack Secord and Yannik Álvarez.

Mackenzie reached the semi-finals of the boys' doubles at the 2025 US Open alongside Dominick Mosejczuk, where they lost to seventh seeds Noah Johnston and Benjamin Willwerth.

Competing at the 2026 Australian Open in january, the German reached the quarter-finals of a junior major singles tournament for the first time in his career, and having not dropped a set. In the quarterfinals, he lost to third seed Ryo Tabata. In June, MacKenzie won the boys' doubles title at the French Open, playing alongside compatriot Vincent Reisach.

Mackenzie had successful results on the ITF junior circuit, maintaining a 150–64 singles win-loss record. He reached an ITF junior combined ranking of world No. 2 on 8 June 2026.

Professional career He became the third player born in 2008 to earn a win on the ATP Challenger Tour in Bonn at the age of 17 years-old when he defeated Matheus Pucinelli De Almeida in straight sets in August 2025.

Personal life Mackenzie lived in Auckland, New Zealand, prior to relocating to Germany at the age of 12 years-old. He has the nickname 'The Red Rocket', given to him by his mother as a child when he won a cross-country race.

ATP Challenger Tour finals

Singles: 1 (runner-up) Finals by surfaceHard (–)Clay (0–1)

ITF World Tennis Tour finals

Doubles: 1 (runner-up)

Junior Grand Slam finals

Doubles: 1 (title)