[1] He emerged as one of Malaysia's most promising and outstanding swimmers, winning a total of fifteen medals (nine gold, two silver, and four bronze) at the Southeast Asian Games, and breaking six national records.

His mother Amy Wong, is a registered nurse, who gave up her job to nurture and care for her children; his father Henry Bego, on the other hand, works offshore as a senior diving technician, and is often away from the family.

He was able to win two silver medals for the men's butterfly events, with impressive times at the FINA Youth World Swimming Championships in Rio de Janeiro, Brazil.

[6] In the 200 m butterfly event, he broke another national record of 2:00.12, set by Anthony Ang at the 2000 Summer Olympics in Sydney, booking him a ticket under the B-standard category for the Beijing games.

He was named 2007 Malaysian Olympian of the Year for his full recognition and outstanding achievements in the Southeast Asian Games, along with his counterpart teammate Khoo Cai Lin.

[11] Following his Olympic performance, Bego made an unprecedented effort at the 2009 FINA World Championships in Rome, Italy, where he broke three national records in the butterfly events.

He emerged as one of Malaysia's most promising and outstanding athletes, and set a historic milestone as the first male swimmer to win five gold medals in all of his individual events at a single games.

He put up a spectacular performance in the 200 m butterfly event, as he clawed his way back from the fourth position going into the final turn to strike another gold medal, with a time of 2:00.91.

[15] Because of the operation, he missed out on the 2011 FINA World Championships in Shanghai, China, and most importantly, the 2011 Southeast Asian Games in Palembang, Indonesia, shattering his hopes of repeating a five gold-medal haul in swimming.

[15] After his one-year absence from the surgery, Bego finally returned to the international stage in great physical form, by winning the 50 m butterfly event at the Malaysian Open Championships in Bukit Jalil, with a time of 26.38 seconds.