While at school Holland was a nationally ranked swimmer before moving to athletics and taking up the 1,500 metres. She didn't begin competing in triathlon until her second year at Loughborough University when she was approached by British Triathlon.
In the San Diego leg of the ITU Triathlon World Cup, in May 2012, Holland placed fifth in an event that was won by Jenkins, with fellow British competitor Liz Blatchford finishing 16th. Later the same month at the Madrid event Holland finished seventh, again beating Blatchford who placed tenth.
Holland was selected ahead of Blatchford to represent Great Britain at the 2012 Summer Olympics in the women's triathlon alongside Helen Jenkins and Lucy Hall. The event took place in Hyde Park with the swim being held in the Serpentine. The cycle involved athletes leaving the park via Queen Mother's Gate, travelling through Wellington Arch, down Constitution Hill and on to Birdcage Walk in front of Buckingham Palace before returning to the park to complete the event with a four-lap run around the Serpentine. Holland completed the course in two hours, two minutes, and 55 seconds, 26th in the field.
In 2012 and 2014, Holland became World Champion as part of the British Mixed Team Relay squad, and on 24 July 2014, Vicki secured her first major individual medal, with Bronze at the Commonwealth Games.
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- "World Triathlon Series: Vicky Holland records first win". bbc.co.uk. 25 April 2015. Retrieved 3 May 2015.