Did it bother anybody else that the i/best at 1500 --3:59.39-- was set by Regina Jacobs,at 39y.o.?
If you examine all the greats -- Coe,Ov.Cramy,Aouita,Decker,Ryan,Scott,et.al.-- almost all were outstanding Jr. runners who peaked in their mid-20's and started to flame out by 28-30.
Ms. Jacobs has an illness and 20 years of traning behind her. Never a great college runner she continues to excell at an advanced age. She is truely the exception to the form chart set by all the greats.