is a Japanese tennis player. He has a career high ATP singles ranking of world No. 330 achieved on 17 March 2025. He also has a career high ATP doubles ranking of No. 848 achieved on that same date.

Career

2024: Australian Junior champion, ATP qualifying & top 500 debuts

Sakamoto won the 2024 Australian Open boys' singles title after defeating

Jan Kumstát Jan Kumstát (born 2 January 2007) is a Czech tennis player. He won the boys' doubles event at the 2025 Australian Open. Career In the summer of 2022 he won gold in the singles at the European Youth Olympic Festival in Banská Bystrica. He wa ...

in three sets. Partnering

Maxim Mrva Maxim Mrva (born 2 August 2007) is a Czech professional tennis player. He has a career-high ATP singles ranking of No. 552, achieved on 9 June 2025, and a doubles ranking of No. 932, achieved on 19 May 2025. He won the boys' doubles title at th ...

, he also won the boys' doubles at the 2024 US Open, defeating Denis Peták and Flynn Thomas in the final. He received a wildcard for qualifying competition at the

2024 Miami Open The 2024 Miami Open was a professional hardcourt tennis tournament played from March 19 to March 31, 2024, on the grounds of Hard Rock Stadium in Miami Gardens, Florida. It was the 39th edition of the combined men's and women's event and was cla ...

but lost to

Vít Kopřiva Vít Kopřiva (born 15 June 1997) is a Czech professional tennis player who competes on the ATP Challenger Tour. He has a career-high ATP singles ranking of No. 82 achieved on 16 June 2025. He also has a career-high doubles ranking of No. 261 ac ...

in the first round. At the age of 18 and five months, Sakamoto won his first title at the 2024 Yokkaichi Challenger becoming the second youngest Japanese titlist after Kei Nishikori to lift an ATP Challenger trophy in history. As a result he reached the top 500 in the rankings on 2 December 2024.

2025: Major qualifying and Masters debuts

Sakamoto received a wildcard for the qualifying competition at the

2025 Australian Open The 2025 Australian Open was a Grand Slam (tennis), Grand Slam level tennis tournament held at Melbourne Park from 12 to 26 January 2025. It was the 113th edition of the Australian Open, the 57th in the Open Era, and the first Grand Slam (tenn ...

. Sakamoto made his Masters main draw debut at the

2025 Miami Open The 2025 Miami Open is a professional hardcourt tennis tournament played from March 18 to March 30, 2025, on the grounds of Hard Rock Stadium in Miami Gardens, Florida. It will be the 40th edition of the combined men's and women's event and is c ...

as a qualifier but lost to

Alexandre Muller Alexandre may refer to: * Alexandre (given name) * Alexandre (surname) * Alexandre (film) See also

* Alexander * Alexandra (disambiguation) * Xano (disambiguation), a Portuguese hypocoristic of the name "Alexandre" {{Disambig ...

ATP Challenger Tour finals

Singles: 1 (1 title)

ITF World Tennis Tour finals

Doubles: 2 (1 title, 1 runner-up)

Junior Grand Slam finals

Singles: 1 (1 title)

Doubles: 2 (1 title, 1 runner-up)

References

External links

* * 2006 births Living people Japanese male tennis players Grand Slam (tennis) champions in boys' singles Grand Slam (tennis) champions in boys' doubles Australian Open (tennis) junior champions US Open (tennis) junior champions Sportspeople from Nagoya Tennis players from Aichi Prefecture {{Japan-tennis-bio-stub