 During the 20th century The Rhondda also supplied a steady stream of championship boxers . Percy Jones was not only the first World Champion from the Rhondda , but was the first Welshman to hold a World Title when he won the Flyweight belt in 1914 . After Jones came the Rhondda 's most notable boxer , Jimmy Wilde also known as the " Mighty Atom " , who took the IBU world flyweight title in 1916 . British Champions from the valleys include Tommy Farr who held the British and Empire heavyweight belt and <unk> Edwards who took the British featherweight title . 
