| Competition | 1999 USA Swimming National Championships (Outdoor/LCM) | 
|---|---|
| Venue | Minneapolis, Minnesota | 
| Held | 7 August 1999 | 
| Status | Medal | 
| Competitors | 8 | 
| Countries | 1 | 
Minneapolis, Minnesota / University of Minnesota Natatorium / long-course metric (50m)
| Pos | Athlete(s) | Country | Mark | ||
|---|---|---|---|---|---|
| 🥇 | Jason Lezak Irvine Novaquatics | 49.34 | |||
| 🥈 | Bryan Jones Texas Aquatics | 49.43 | |||
| 🥉 | Neil Walker Texas Aquatics | 50.14 | |||
| 4 | Jon Olsen Mecklenburg Aquatic Club | 50.40 | |||
| 5 | Josh Davis Texas Aquatics | 50.45 | |||
| 6 | Matt Macedo Alamo Area Aquatic Association | 50.59 | |||
| 7 | Coley Stickels Hillenbrand Aquatics | 50.89 | |||
| 8 | Brian Esway Texas Aquatics | 51.38 |