Adolph Plummer set a world record in the 440 yards in 1963

44.9y Adolph Plummer (USA) Tempe 25.05.1963
Western Athletic Conference, Goodwin Stadium, 20.10 Hr:
1. Plummer 44.9 (all 3 watches 44.9),
2. Ulis Williams 45.6,
3. Ronald Freeman 46.2,
4. Robert Tobler 46.5,
5. Michael Barrick 47.0,
6. Dennis Pierce 47.4,
7. David Murray 47.6.
Halves: 21.7 and 23.2.
Source: IAAF World Records