1962: Snell runs 1:44.3 for WR and still standing NZ record.
1966: Ryun runs 1:44.3c (1:44.9y) for WRy and still standing American Junior record.
1968: Doubell runs 1:44.3 (official) for tie of WR and still standing AUS record (although national federation now lists his auto time of 1:44.40.)
1972: Wottle runs 1:44.3 for tie of WR with Snell and Doubell.
1973: Fiasconaro runs 1:43.7 for WR and still standing ITA record.