Por Ruamrudee was born as Paiboon Ladnongkee (ไพบูลย์ ลัดหนองขี) in Tambon Mueang Phlapphla, Amphoe Huai Thalaeng, Nakhon Ratchasima province, northeastern Thailand.
Por Ruamrudee fought for the first time in the event "Suek Onesongchai" of famous promoter Songchai Rattanasuban by knocking out the second round Tepparith Sor Naya-arm, This fight made him well-known among Muay Thai fans.
[4] Every time before the match his staff waved a big black pirate flag and his trunks will also have a "skull & bones" symbol attached to it, as a unique calling card.
[5] This fight is considered the milestone of modern Muay Thai, by making a record for the total entrance fee up to 3,200,000 baht for the first time.
[2] In early August 2016, he returned from retirement to face his old rival, Langsuan Panyuthaphum, in the special event at Rajadamnern Stadium.