After winning her school's 800 m at age 11, her teachers suggested that she join the local athletic club. Dobriskey won
Amateur Athletic Association titles at Under 15/17/20 and 23. She was the fastest British under-17 girl at 800m (2:08.67) and fourth fastest at 1500 m (4:31.7) in 1999, and the third fastest at 1500 m (4:28.10) in 2000. She won the English Schools 800 m title for Juniors in 1998 and for Intermediates in 1999 and made her junior international debut indoors against Germany and France at 1500 m in 2000. In the English Schools
cross country running she was 4th in the Junior girls in 1998 and 3rd in the Intermediates in 1999. She was 2nd in the Inter-counties U15 cc in 1999. She won the gold medal in the women's 1500 m event at the
2006 Commonwealth Games. She finished 4th in the final of the 1500 m in the
2008 Olympic Games in Beijing, resulting in her ranking fourth in the world for the 1500 m. After this, she won the
Fifth Avenue Mile competition with the second fastest ever time recorded by a female athlete at the race. After suffering a stress fracture in her back early in the 2009 season, she finished third in the 1500 m at the
2009 World Championships in Athletics at the
Olympiastadion in Berlin, Germany. Dobriskey was upgraded to silver after winner
Natalia Rodriguez of Spain was disqualified for shoving Ethiopian
Gelete Burika, who fell on the last lap. At the
2012 Summer Olympics, she reached the 1500 m final again, finishing in 10th place. After the race, Dobriskey referred to possible doping by some of her rivals, saying "I don't believe I'm competing on a level playing field". Race winner
Aslı Çakır Alptekin was subsequently stripped of the gold medal in 2015 and given an eight-year ban from competition after testing positive for banned substances. Second-placed finisher
Gamze Bulut was subsequently stripped of her silver medal in 2017 after testing positive for banned substances, and
Tatyana Tomashova, who was moved up to second place following Alptekin & Bulut's disqualifications, was stripped of her silver medal in 2024 for similar offences. The seventh-placed finished
Natallia Kareiva, who came seventh, and the ninth-placed finisher
Yekaterina Kostetskaya were also subsequently disqualified. In all, five out of the twelve runners in the race were subsequently disqualified for retrospective doping offences. ==Statistics==