- Maxwell Leffler, Anna Pryor
- 5:52:35 minute(s):second(s)
- United States (Wilmington)
The fastest mile three legged is 5 min 52.35 sec, and was achieved by Anna Pryor and Maxwell Leffler (both United States) in Wilmington, Delaware, United States, on 27 April 2021.
This attempt took place on the Christopher Mellor Track at the Wilmington Friends School in Delaware, USA. Specialist witnesses included the school's director of athletics, and a USA track-and-field coach.