The following year he won a 4 × 400 m relay bronze at the 1999 IAAF World Indoor Championships and outdoors won the a silver medal in the event at the 1999 World Championships in Athletics. At that competition he also ran first leg in the 4 × 400 m relay team that broke the British indoor record and won a bronze medal. He still holds the British record and is still ranked 5th on the UK all time 200 m indoor rankings.
In 2000 he was selected for his first Olympic Games in Sydney where he competed as part of the 4 × 100 m relay team.[1] In August 2001 after competing for Sale Harriers Manchester in a league competition, Allyn collapsed and was later rushed into hospital with renal failure and endocarditis. After spending six weeks in hospital, doctors told Allyn that his athletics career was over.
After a short time out of the sport, he got back to full fitness and in August became the 2002 Commonwealth Games gold medalist in Manchester in the 4 × 100 m relay. Condon flew out to Munich as part of the Great Britain Team for the 2002 European Athletics Championships, but after a dispute with the team management over selection returned home before the event had taken place.
In 2003 he was a finalist in the 200m at the ((World Indoor Athletics Championships | 2003)) but was unfortunately disqualified after getting two false starts. He refused to leave the track despite the disqualification, holding the event up for a period of around 10 - 15 minutes. After huge support from the home nation crowd, he was allowed to run under protest, but was later disqualified anyway.
Switch to bobsleigh
After an international athletics career, inspired by the film Cool Runnings, he changed from track and field in 2006 to take on the challenge of bobsleigh.
During his first year in the sport he became a first team regular in both the two-man and four-man events. His best finish at the FIBT World Championships was fifth in the four-man event at St. Moritz in 2007. Condon's best World Cup finish was tenth in a four-man event at Winterberg in 2008.
In 2008 during a race in Germany he hurt his back and returned home to the UK. After having his back scanned, surgeons found he had ruptured an artery on his lower spine and this brought an abrupt end to the season ahead.
He returned to the sport in 2009 when the team struggled to find any kind of form on the World cup circuit and had a disappointing World Championships finish.
In 2010 after a season of selection upsets, he was selected to represent Great Britain at the Vancouver Winter Olympic Games, becoming part of a select group to have competed at both the Summer and Winter Olympics.[1] As a bobsledder, Condon finished 17th in the four-man event at the 2010 Winter Olympics in Vancouver alongside former track and field teammate Dan Money. A 150 km/h crash that put the Great Britain team on their heads on the bend named 50/50 prevented the four-man team from achieving a top eight finish.