About Grete Waitz
Grete Waitz, née Andersen (1 October 1953 – 19 April 2011) was a Norwegian marathon runner and former world record holder. In 1979, at the New York City Marathon, she became the first woman in history to run the marathon in under two and a half hours. Waitz won nine New York City Marathons, women's division, between 1978 and 1988, the highest number of victories in a single big city marathon in history. She won the silver medal at the 1984 Olympic Games in Los Angeles and a gold medal at the 1983 World Championships in Helsinki. She was also a five-time winner of the World Cross Country Championships. Waitz four times set a world record in the marathon, twice at the 3000 metres, and she set world records at distances of 8 kilometers, 10 kilometers, 15 kilometers and 10 miles. She won 12 World Marathon Majors, the most for any runner, earning her a place in the Guinness World Records. Her other marathon victories included winning the London Marathon in 1983 and 1986 and the Stockholm Marathon in 1988. Grete Waitz, née Grete Andersen, (1 October 1953 – 19 April 2011) was a Norwegian marathon runner and former world record holder.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.