Background
Jasika was born in Melbourne, Australia.
Jasika was born in Melbourne, Australia.
He attended South Oakleigh College throughout his schooling years.
Jasika along with Naoki Nakagawa is also the 2014 United States Open boy"s doubles title after defeating Rafael Matos and João Menezes 6–3, 7–6(8–6) in the final. International Tennis Federation Junior finals (4)
= Singles: 4 (2 titles, 2 runners-up) Junior Grand Slam finals
= Boys" Singles = Boys" Doubles
After his success at the United States Open, Jasika made his Association of Tennis Professionals World Tour debut in September, after he was given a wild card into the Malaysian Open. In October, Jasika made his first final at the Australia F7 in Cairns.
2015
Jasika commenced 2015 at the Onkaparina Challenger where he drew Number.1 seed and world Number.80 Blaž Rola.
He lost in three sets. In February, he played in the Australia Futures 1 tournament, where he lost in the final to Brydan Klein.
In March, Jasika headed to China where he made the final round of qualifying in both Guangzhou and Shenzhen Challengers before heading to Guadeloupe where he qualified for and made the quarter final of the Guadeloupe Challenger. 2016
Jasika made his grand slam debut at the 2016 Australian Open after being awarded a wild card.
Singles: 4 (2 titles, 2 runners-up).
Jasika is the 2014 United States Open boys" singles champion defeating Quentin Halys 2–6, 7–5, 6–1 in the final. In winning both, Jasika became the first player in 28 years to win both the boys’s singles and doubles events at the United States Open. Jasika has a career high singles ranking of 259 achieved on 3 August 2015. He drew Rajeev Ram in round one, and won the first set, and was within 2 points of the match in the second, before losing in three. 6-4, 5-7, 3-6. Jasika competed in the qualifying for the Australian Open, when he won two rounds, but lost in the final round to Marius Copil. In May, Jasika won his first International Tennis Federation title in Changwon. In July, Jasika won his second International Tennis Federation title in Kelowna, dropping just one set along the way. He won his first round match, beating Illya Marchenko in 4 sets. He subsequently lost to former finalist Jo-Wilfried Tsonga in the following round in straight sets.