The Sub-4 Chronicle
The Sub-4 Register was initiated by the late Bob Sparks, was continued by Ian R. Smith, and is now maintained by the editor of "Track Stats". Web pages were prepared by Bob Sparks in 2002, and can still be found on Bob Sparks's Web Site or on The Internet Archive. Updated information on the Sub-4 chronicle has been regularly provided in Track Stats, including the following articles since 2002:
Sub-4 Alphabetic Register as at 6-Jun-2021 (199 KB) updated by Bob Phillips
Note other articles on Sub-4 in Track Stats:
see also the Index to Track Stats Volumes 31-46
These pages have been compiled from A.T.F.S. and N.U.T.S. sources, with reference to lists on the World Atletics web-site for recent years.