Betsy started his career at Woking, representing England at semi professional level and being named Conference Player of the Year in 1998, before Kevin Keegan moved in to sign him for Fulham during the 1998–99 season for £150,000, describing him as one of the best young players he had seen at his age. He made his debut at Anfield against Liverpool in the League Cup and spent three years at Fulham. Betsy's only goal for Fulham came in their victorious 1998–99 Division Two campaign against Millwall. He made five league appearances during Fulham's 2000/01 season after which they were promoted to the Premier League. He made one appearance in the Premiership for Fulham under Jean Tigana in a game against Manchester United at Old Trafford. He had loan spells at Bournemouth and Hull City before Barnsley came in for him in March 2002 for a fee of £200,000. He made over 90 appearances for the club and scored 17 goals and was the club's top goal scorer in 2002–03 season with 11 goals from midfield. After a short spell at Hartlepool United (where he scored once against Huddersfield Town) he signed for Oldham Athletic in September 2004 he scored 5 goals and was a key member of the team which defeated Manchester City in the FA Cup. After turning down Oldham's offer of a new contract, Betsy moved to Wycombe Wanderers in July 2005, signing a two-year contract.