Former 118 lbs and 130 lbs world champion Sirimongkol Singmanasak (born Sirimongkhon Iamthuam) is still active at 48 and now fighting at HW. He had also recently won World Boxing Foundation World Light Heavy belt, and scored his 100th win as a pro. Check this guy's pro record: https://boxrec.com/en/box-pro/5745
Clearly a legend in Thailand and a very underrated boxer this guy was two times world champions in Bantamweight and Super Featherweight. He was the rival of Joichiro Tatsuyoshi, Thanomsak Sithbaobay,Yong Soo Choi, Tewa Kiram, Kengo Nagashima... All of these fighters are retired since a long time ago now (Tewa Kiram since 2 years but the others it's more than 15 years ago..).
He also found his own boxing gym in Thailand at Pathum Thani his hometown we have the Singmanassak Boxing Gym very famous for boxing almost all boxers that you see in Highlands Boxing Promotion is from this gym and almost all the little fights in professional boxing in Thailand are based on this gym. They have many boxers such like Chonlathee Srirat, Jirawat Aiamong, Thoedkiad Weerachon, Daychanan Udomruttanatepkit, Ismail Hakki Yazici, Tararat Aiamong and in the past they have even Surat Eaim Ong.
Absolutely nuts how he's now able to campaign at that weight starting all the way from bantamweight and still manage to win 100 fights. Good on him! If anyone hasn't seen his fight with Joichiro Tatsuyoshi I urge people to do so. Insane fight. This content is protected