[9] Mudge's start in life did not augur well for a future in endurance running, after she was born with pedal defects; both of Angela's feet and one of her twin sister Janice's were pointing backwards.

[12] When she subsequently moved to the University of Edinburgh to study for her PhD, she joined the Carnethy Hill Running Club, where she remains an active member and competitor.

[15] She showed equally rapid development on the international stage, placing 46th in the 11th World Mountain Running Trophy when it was held in Scotland in 1995, five years prior to winning the event outright in 2000.

[16] She continued her international success in 1999, the year she broke the course record for the prestigious 4,100 metres (13,500 ft) Mount Kinabalu Climbathon in Sabah, Malaysia, as she won the race and the US$2,500 prize.

[18] In the European Mountain Running Trophy, her best results have been as runner up in Bad Kleinkirchheim, Carinthia, Austria in 1999,[19] which she repeated in 2001 in Slovenia, finishing behind Russian Svetlana Demidenko,[20] and again in 2003 in Trento, Italy, when Belgium's Catherine Lallemand won.

[12] However, she was unable to attend the ceremony at the Royal Albert Hall in London because she had already booked a long-planned holiday to the Antipodes and, she claimed, "...didn't possess a little black dress, and would only have wandered around collecting autographs.

[24] Her victory in 4h 19m 38s not only set an age-group record for the 4,300 metres (14,100 ft) peak, it marked the only defeat in six years for Los Alamos, New Mexico runner Erica Larson, the most successful woman in the event's history.

[25] Mudge missed much of the 2005 season, first recuperating from an operation to rehabilitate a damaged knee which left her on crutches, and then succumbing to a bout of plantar fasciitis between May and July.

[26] She did not participate in the opening race in Hidalgo, Mexico, but was victorious in four successive subsequent rounds in Zegama, Spain,[27] Valposchiavo, Switzerland,[28] Nagano, Japan,[29] and Canazei, the Dolomites, Italy,[30] breaking the course record on each occasion.

[2] Team SaabSalomon retained Mudge's services for the 2007 Skyrunner Series, and she subsequently won the first three races in which she competed, in Berga, Berguedà, in the Catalan region of Spain,[33] Vallnord in Andorra,[34] and the Dolomites in Italy.