Betham was a Bay Roskill Vikings junior and represented New Zealand in eight tests and also played for Samoa at the 2000 World Cup. His position of choice was at Loose forward/Lock but he also played at hooker. On the field Betham was known for his aggressive style of play. He was once voted the player that the opposition players least want to pick a fight with during a nrl players poll.
Boxing career
In December 2006, Betham announced his retirement from rugby league in order to pursue a career in boxing. Betham will start out in the cruiserweight division and hopes to work his way down to light heavyweight.
Monty Betham (born 27 September 1952 in Savaii, Western Samoa) was a professional boxer who fought boxers such as Tony Mundine, and Lance Revill in a professional career beginning in 1973 up until 1984. He is also the father of former New Zealand Warriors rugby league star Monty Betham.