Rak Saiyon was born in the
Rayong Province and grew up in the
Bang Khla District from the
Chachoengsao Province. He started Muay Thai training at the Lukklongtan camp and fought in Chachoengsao until he was big enough to fight in Bangkok where he was scouted by the Songchai promotion in 1978. From then he was training at the Sor.Thanikul camp owned by famous promotor
Klaew Thanikhul. Bangkhlanoi became a top fighter in the smaller weight classes, beating notable champion
Samransak Muangsurin and the famous Payakaroon brothers
Kongtoranee Payakaroon and
Samart Payakaroon. He captured the 102 lbs
Lumpinee Stadium title in 1979 and the 108 lbs title in 1981. Bangkhlanoi defeated hard puncher
Mafuang Weerapol on 24 August 1982 for the
Lumpinee Stadium 118 lbs title. They rematched on 24 December 1982 at
Rajadamnern Stadium. Bangkhlanoi won by decision and received the "Best Fighter Award" from the hands of
Princess Maha Chakri Sririndhorn. Bangkhlanoi became less dominant in the second half of the 1980s. He had a trilogy memorable for its violence against the southpaw Paiboon Fairtex in 1986. Bangkhlanoi retired in 1988. He died at the age of 61 on May 18, 2024. ==Titles and accomplishments==