400 m Individual Medley, Men
| Competition | 1983 USA Swimming National Championships (Outdoor/LCM) |
|---|---|
| Venue |
Clovis, California
 USA
|
| Held | 4 August 1983 |
| Status | Medal |
| Competitors | 8 |
| Countries | 2 |
Clovis, California / Clovis West High School / long-course metric (50m)
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Ricardo Prado Mission Viejo Nadadores |
 BRA |
4:21.26 | ||
| 🥈 | Jeff Kostoff Industry Hills Aquatic Club |
USA |
4:22.38 | ||
| 🥉 | Mike O'Brien Mission Viejo Nadadores |
USA |
4:25.31 | ||
| 4 | Pablo Morales Unattached |
USA |
4:27.30 | ||
| 5 | Bobby Laugherty Florida Aquatics Swim Team (FAST) |
USA |
4:29.20 | ||
| 6 | Jeff Float Arden Hills Swim Club |
USA |
4:30.06 | ||
| 7 | Mike Reynolds University of Southern California (USC) |
USA |
4:31.28 | ||
| 8 | David Eldridge Tucson Farmer John |
USA |
4:35.74 |