Athletics Tracker
by Dr Marco Cardinale
Development Curves
Athletes
Compare
Data
Diagnostics
Go
Billah Jepkirui
KEN
Born 01 Jan 2003
Female
Events
One Mile
track
One Mile
PB:
262.92
seconds
Season Bests & Year-on-Year Change
Performance
% Change
Season Bests
Year
Season Best
Age
vs Prior Year
% Change
2026
4:22.92
23.1
+nan
+nan%
PB