Her personal best is 1:57.69, the seventh[3] fastest time over 800m by a British woman, set in the final of the 2016 Olympic Games in Rio de Janeiro.

She has said she was inspired to study law after her father fought a medical negligence case following permanent injuries he sustained in a road crash.

A week after the trials, Sharp won a silver medal at the European Championships in Helsinki with a personal best of 2:00.52, a time that was still outside the A standard.

In August, at the 2014 Commonwealth Games in Glasgow, she ran 2:01.34 to win a silver medal in the 800 m.[11] The race was won by 2013 World champion Eunice Sum.

The night before the Commonwealth 800 m final, Sharp suffered stomach cramps and sickness and had to be placed on a drip at the Poly-clinic at the Athletes' Village until 5:30 am on the morning of the race.

[12][13] Two weeks after the Commonwealth Games, she won a silver medal at the European Championships in Zürich in a time of 1:58.80, breaking Susan Scott's Scottish record of 1:59.02 and moving to eighth on the UK all-time list.

Following the race, Sharp broke into tears and said that "it was difficult to compete against Caster Semenya and other hyperandrogenic athletes after the rule to suppress testosterone levels was overturned.

"[14] Sharp was criticised in the media when she appeared to ignore Semenya post-race while embracing fellow runners Joanna Jóźwik and Melissa Bishop.

After competing throughout 2019, Sharp went on hiatus due to surgery to remove pre-cancerous cells followed by pregnancy, but stated that she intends to return to competition.