Margaret Groos

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Margaret Keyes Groos (born September 21, 1959) is a retired female long-distance runner from the United States. She set her personal best (2:29:50) in the marathon on May 1, 1988, winning the Pittsburgh Marathon. She was born in Nashville, Tennessee.


  • All results regarding marathon, unless stated otherwise
Year Competition Venue Position Notes
Representing  United States
1988 Pittsburgh Marathon Pittsburgh, United States 1st 2:29:50
Olympic Games Seoul, South Korea 39th 2:40:59
1989 Pittsburgh Marathon Pittsburgh, United States 1st 2:32:39

On February 20, 1981 at Blacksburg VA Groos set a world indoor record for 5000 meters. Her time was 15:34.5.