Pedzisa mutsara unotevera: William Cheruiyot Sigei (akaberekwa musi wa11 Gumiguru 1969 mumusha weCheboi'ngong', kunze kwemusha weKapsimotwo, Bomet, Kenya) aimbova mumhanyi weKenya akamhanyisa IAAF World Cross Country Championships muna 1993 uye
1994. Muna 1994 akaisa rekodhi itsva yenyika pamamita 10 000 muOslo nemaminitsi 26:52.23.