Richardson competed in the singles draw of a
Grand Slam three times, all at
Wimbledon and on each occasion as a wildcard. In both 1992 and 1998 he lost in the opening round, to
Marc Rosset and
Hicham Arazi respectively. However, in the
1997 Wimbledon Championships he reached the third round, with wins over Spanish qualifier
Sergi Duran in straight sets and then another Spaniard
Juan Albert Viloca, in five sets. He was eliminated by countryman
Greg Rusedski in the third round. He was more successful as a doubles player, winning five tournaments on the
ATP Challenger Tour. One of those, at
Seoul in 1995, was with
Tim Henman as his partner. The pair also reached the semi-finals of the
1996 Czech Indoor tournament, an
ATP Tour event. Richardson would later be a best man at Henman's wedding. In 1997, Richardson represented an understrength
Great Britain Davis Cup team against
Zimbabwe. He defeated
Byron Black in a singles match, to level the tie at 1–1 but his second match, against Byron's brother
Wayne, which Richardson lost, was a dead-rubber, with Zimbabwe having already secured the tie. He is now a tennis coach and has worked with British players
Ross Hutchins, Miles Kasiri,
Alan Mackin and
Emma Raducanu. Richardson worked with Raducanu during the
2021 US Open, in which she became the first qualifier to win a grand slam title, and the first British woman to do so since
Virginia Wade's Wimbledon title in 1977. ==Challenger titles==