Athlete		Records by age
Name	Born	Made in career	Still unbeaten	%	Records' list
Michael Johnson	USA, 1967	9	7	78	25 26 27 28 29 30 31 32 33
Harry Reynolds	USA, 1964	9	1	11,1	23 24 25 28 29 32 33 34 35
Alberto Juantorena	Cuba, 1950	7	0	0	26 27 28 29 30 32 34
Lee Evans	USA, 1947	5	0	0	19 20 21 22 25

KEY
26	Beaten record
32	Unbeaten record