Note: This is a list of top performances eligible for official POP lists and championship qualifying. Conversions may be applied.
| Time | Athletes | Meet | Meet Date | |
|---|---|---|---|---|
| 46.15 | Valluri, Thomas, Opoku, Bortei-Doku | Benedictine Invitational | Apr 7, 2018 | |
| 48.54 | Opoku, Obedi, Valluri, Thomas | 2018 Cougar Invitational | Apr 20, 2018 |