Considered as one of the best players of his generation, he won the men's doubles titles at the All England Open in 2017 and 2018; the World Superseries Finals in 2017; and the Asian Games in 2018.

[6] Noticing young Sukamuljo's interest in badminton, his father then found a coach in Jember at the Putra 46 club to foster his child's talent for a year.

[19] He also played at the World Junior Championships held in Taoyuan City, but was eliminated in the quarter-finals in the boys' doubles event with his partner Nugroho.

[20] In 2012, Sukamuljo won the U-19 National tournament the Jakarta Open and West Java circuits, also the Candra Wijaya men's doubles championships.

[23] In October–November, he competed at the World Junior Championships held in Chiba, Japan, but lost in the early stages of both the boys' and mixed doubles events.

[27] In July, he competed at the Asian Junior Championships held in Kota Kinabalu, Malaysia, and captured bronze medals in the mixed team and boys' doubles events partnered with Arya Maulana Aldiartama.

[28][29] Turning eighteen in August, he won the mixed doubles title at the Tangkas Specs Junior International Challenge with Masita Mahmudin.

[30] In October–November, he participated at the World Junior Championships in Bangkok, Thailand where he helped Indonesia to win the silver medal in the mixed team event.

[31] In the individual tournament he earned mixed doubles silver with Mahmudin, losing the final match to the Chinese pair Huang Kaixiang and Chen Qingchen, whom they had beaten the previous week in the semifinals of team play.

[36] In September, they reached their first Grand Prix Gold final as a team at the Indonesia Masters where they were beaten in three games by Marcus Fernaldi Gideon and doubles great Markis Kido the top seeds.

[38] Sukamuljo's mixed doubles partnerships with Della Destiara Haris and Maretha Dea Giovani were less successful reaching no farther than the quarterfinals of any 2014 tournament.

[53][54] The former badminton player who is currently a BWF commentator, Gillian Clark, also highlighted that the fast play shown by Sukamuljo and Gideon have taken the men's doubles game to a new level and makes the matches exciting to watch.

[55] In the next tournament, the duo then reached the semifinals of the Vietnam and Thailand Opens before capturing their first title together at the Chinese Taipei Masters in October where they beat Malaysia' Hoon Thien How and Lim Khim Wah in the finals.

[56] In the Hong Kong Open, Sukamuljo and Gideon beat the World Championship silver medalists Liu Xiaolong and Qiu Zihan before losing to top seededed South Koreans Lee Yong-dae and Yoo Yeon-seong in the quarterfinals.

[71] A week later, however, the duo won their second Superseries title at the Australian Open,[72] in the quarterfinals defeating Zhang Nan and Fu Haifeng for the first time, to whom they had lost three previous matches.

[73] Due to an injury suffered by Gideon, Sukamuljo was paired with Wahyu Nayaka at the home soil Indonesian Masters tournament, but the scratch partnership still managed to win the title.

[87] In August, Sukamuljo and Gideon went to the World Championships held in Glasgow, Scotland, as third seeds, but lost in the quarter-finals to China's Chai Biao and Hong Wei in three close games.

[90] In October, Sukamuljo and Gideon lost the final of the Denmark Open in a tight match to reigning World Champion Liu Cheng and Zhang Nan.

[91] Back together in November, Sukamuljo and Gideon improved their head-to-head record against Boe and Mogensen to 3–4, after defeating them in the finals and securing their second China Open title.

[92] They won the Hong Kong Open a week later, their sixth Superseries victory of the season, thus equaling the previous men's doubles record of six set by South Koreans Lee Yong-dae and Yoo Yeon-seong in 2015.

[104][105] In September, he and Gideon retained their Japan Open title, defeating the reigning World Champions Li Junhui and Liu Yuchen.

[110][111] After the victory they achieved in Hong Kong, Sukamuljo and Gideon managed to set a record as the first ever men's doubles pair to win eight world tour titles in a season.

[121][122] In August, the duo managed to reaching the quarter finals of Thailand Open, but stopped by the Japanese pair Hiroyuki Endo and Yuta Watanabe.

[123] They then suffered first match loss, in the second round of Basel World Championships to Choi Sol-gyu and Seo Seung-jae of South Korea after they succumbed 21–23 in the deciding game.

[134] Sukamuljo later won his fourth consecutive Indonesia Masters title (third with Gideon) defeating Mohammad Ahsan and Hendra Setiawan in straight games.

[153][154] Topped the BWF World rankings for 215 consecutive weeks, Gideon and Sukamuljo supremacy were dethroned by Japan's Takuro Hoki and Yugo Kobayashi on 20 September 2022.

[155] Sukamuljo and his partner, Gideon, started the BWF tour in the Malaysia Open, but were stopped in the second round by a Chinese pair, Liang Weikeng and Wang Chang.

[157] They competed at the home tournament, Indonesia Masters, but retired in the second round to Chinese pair Liu Yuchen and Ou Xuanyi following the injury of Gideon.

Kevin Sanjaya Sukamuljo and Marcus Fernaldi Gideon lead the meeting record with a wide margin against Satwiksairaj Rankireddy and Chirag Shetty of India, Li Junhui and Liu Yuchen of China, and their senior compatriots Mohammad Ahsan and Hendra Setiawan.

Meanwhile, Sukamuljo and Gideon have a poor head-to-head record against Liang Weikeng and Wang Chang (0–4), Hiroyuki Endo and Yuta Watanabe (2–6), Lee Yong-dae and Yoo Yeon-seong (0–3), and also Fu Haifeng and Zhang Nan (1–3).