1:44.3c wrote:
Jim Ryun ran a world record 1:44.9 for 880y (1:44.3c) in 1966 just a few weeks after turning 19 and just a few weeks older than Max Burgin was when he ran 1:44.14. Ryun ran his time at the US Championships in Terre Haute on was probably a cinder track.
No, it was not a cinder track. It was the first world record set on a synthetic track.