Fast, young American kids are burning up the roads with new world records.
Anne Garrett's record is also a personal PR.
He started running for stress relief.
Former Olympic gold medalist sets a 50-54 U.S. age-group record at Chicago Marathon.
1996 Olympic marathoner still beating women half her age.
The 52-year old missed her American record by one second. Joan Benoit Samuelson continued to set records at the age of 52, as she completed