Career
Since then, Hoon was briefly paired with Chan Chong Ming and then Ong Soon Hock. Then, He was paired with Tan Wee Kiong in late 2010. In 2013, they ranked at Number.
7 worldwide.
However, due to the resignation of Koo Kien Keat in early 2014, Hoon was once again partnered with Tan Boon Heong in September that year. In 2015, Hoon resigned from the Badminton Association of Malaysia. Hoon Thien How and Tan Boon Heong were the World Junior Champions in 2004.
Shortly after, Tan was partnered with Koo Kien Keat and Hoon was briefly partnered with Chan Chong Ming and then, Ong Soon Hock.
Hoon and Ong participated in Indonesia Open 2008 and did their best as they became the semi-finalist, beaten by Candra Wijaya and Tony Gunawan. Latest, they played in China Masters 2008 but once again was beaten.
In 2010, Hoon and Ong were chosen to play for Malaysia Thomas Cup squad. From 2010 onwards, he was paired with Tan Wee Kiong.
Hoon and Tan broke into the top 10 in the world rankings on 20 December 2012.
Together, their highest ranking was at Number. 7. However, they often made it to the quarterfinals, semifinals or finals of the tournaments which contributed to their world ranking. They played first doubles and defeated World Number.
1 pair, Mohammad Ahsan and Hendra Setiawan of Indonesia in the semi finals but failed to defeat world Number.
3 pair, Hiroyuki Endo and Kenichi Hayakawa of Japan in the finals. Malaysia lost narrowly 2-3 to Japan.