Marot was born in Compiègne, France. She moved to England in 1976 to study at York University and became a British citizen in 1983. Early in her running career, Marot competed in several fell races. In 1979 she unofficially completed the Ennerdale Fell Race before women were allowed to take part, to the consternation of the race organiser. The next year, women were allowed to compete over the full course. Marot first ran under three hours for the marathon, running 2:55:38 at the 1980 Barnsley Marathon. At the inaugural London Marathon in 1981, she finished ninth, improving her best to 2:46:51. She further improved with 2:42:14 for 21st at the 1983 London Marathon and 2:36:24 for 7th at the 1983 New York Marathon. She improved again with 2:33:52 for fourth at the 1984 London Marathon, before finishing second at the 1984 New York Marathon with 2:33:58. She broke the British record for the first time when finishing fifth at the 1985Chicago Marathon, running 2:28:04. A three-time winner of the Houston Marathon, she first won it in 1986, running 2:31:33. Later that year, she failed to finish at the 1986 European Championships in Stuttgart. At the 1987 World Championships in Rome, she finished 22nd in 2:45:02. She earned selection for the 1988 Olympic Games but declined it due to injury. 1989 began with Marot winning the Houston Marathon for the second time, with 2:30:16. Then in April, she won the 1989 London Marathon in 2.25.56, regaining the British record from Priscilla Welch, who had run 2:26:51 in 1987. Marot's time stood as the British record for 13 years until it was broken by Paula Radcliffe in 2002. Marot won the Houston Marathon for the third time in 1991, running 2:30:55, before failing to finish at the 1991 World Championships in Tokyo. In 1992, she finished 16th at the Barcelona Olympics in 2:42:55. She also twice won the Around the Bay Road Race in Ontario. In 2003, aged 47, she finished 24th at the London Marathon, running 2:55:01. Marot ranks fourth on the UK all-time list behind Radcliffe, Mara Yamauchi and Charlotte Purdue.
Personal life
Marot has a son and a daughter with her coach, Brian Scobie.
Achievements
Note: In 1985 Marot ran the London Marathon just 8 days after running in the World Cup Marathon.