- Dominika Stelmach
- 152.633 kilometre(s)
- Israel (Tel Aviv)
The farthest run 12 hours ultra distance (female) is 152.633 kilometres (94.841 miles), achieved by Dominika Stelmach (Poland) at the Spartanion race in Tel Aviv, Israel, on 5 January 2023.
Stelmach broke the 12-hour women’s record in the 24-hour event of the Spartanion race, which she did not finish. Her average pace across the 12 hours was around 4:44 per kilometre.