- Amy Palmiero-Winters
- 21:43:29 hour(s):minute(s):second(s)
- United States (New York)
The fastest 100 miles on a treadmill (female) - LA2 is 21 hr 43 min 29 sec, and was achieved by Amy Palmiero-Winters (USA) in New York, New York, USA, on 10-11 July 2021.
Amy is the first holder of this record title.