Hall Pass wrote:
By the way, I was under the impression that Bowerman came up with the 30/40. I don't have a copy now, but it may be mentioned in the Kenny Moore book on Bowerman and the era in general. Dellinger kept the idea going and had Salazar do it. I don't remember the number of laps that each lasted, but I think Al has the record.
Rupp has the record. Al stopped him after 25 laps.