| Competition | 1980 USA Swimming National Championships (Outdoor/LCM) | 
|---|---|
| Venue | Irvine, California | 
| Held | 31 July 1980 | 
| Status | Medal | 
| Competitors | 12 | 
| Countries | 1 | 
Irvine, California / Heritage Park / long-course metric (50m)
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Cincinnati Pepsi Marlins | 3:48.83 | * | ||
| Mary T. Meagher | 56.91 | ||||
| Lisa Buese | 57.54 | ||||
| Kim Carlisle | 57.41 | ||||
| Stephanie Elkins | 56.97 | ||||
| 🥈 | Longhorn Aquatics | 3:50.14 | |||
| Kim Linehan | 58.68 | ||||
| Joan Pennington | 57.98 | ||||
| Carol Borgmann | 57.43 | ||||
| Jill Sterkel | 56.05 | ||||
| 🥉 | Mission Viejo Nadadores | 3:50.46 | |||
| Marybeth Linzmeier | 57.38 | ||||
| Michelle Amen | 57.99 | ||||
| Jennifer Hooker | 58.76 | ||||
| Sue Habernigg | 56.33 |