Career
After several years of Motocross, Muggas began circuit racing in 1994, finishing 4th in his homeland"s 250cc series a year later on a Suzuki. Over the next 3 years he did an assortment of races around the world, primarily on 600cc Supersport bikes. He was a regular in his home series in 1996, and in the British championship for the next 2 years, coming 4th overall in 1999, before moving on to the
He was 5th overall in 2000, 7th in 2001, 14th in 2002 and 4th in 2003, before taking the 2004 crown as the lead rider for Ten Kate Honda, with 7 wins and 8 poles.
2005 proved to be a tough year for Karl He finished the season 11th overall with 124 points.
In 2006 a back injury caused him to miss the Valencia round and he again failed to score a podium finish, despite strong qualifying runs including 3rd at Brands Hatch. He finished the season 12th with 123 points.
He lost his ride for 2007, and was offered a ride by the team He instead remained in WSBK and on a Honda by joining countryman Josh Brookes at Alto Evolution.
He missed his home race at Phillip Island after a crash in practice.
At Monza he started 6th but crashed in the one race staged before heavy rain caused the event to be abandoned. The team missed Misano due to legal problems, and Brookes left the team, but Muggeridge returned at Brno. He finished the season 16th with 62 points.
Foreign 2008 he moved to the DFXtreme team, again on Hondas.
He scored two sixth places among his fourteen points finishes, although he only scored four times in the last seven rounds, coming 15th overall. Foreign 2009 he joined the Celani Suzuki team
He struggled throughout the season with his highest place finish of 8th in race 2 of the penultimate round at Magny-Cours, Karl did not race in the final round of the season. He also raced a couple of rounds in the British Superbike Championship for the Her Majesty Plant, Honda as a replacement rider for the injured Glen Richards.
Currently Muggeridge is leading the series by 29 points with one round left to go.
Muggeridge also had a guest ride with the Castrol Honda team in the World Superbike Championship during the last round at Portimao, finishing both races outside the points.
