Career
Bungei was ranked Number.1 in the world over 800 m in 2002 and 2003. He has a personal best of 1:42.34 minutes (Rieti 2002), thus being currently the seventh fastest runner in the history of the event. While in school, he focused on sprints and decathlon, before concentrating on 800 metres running.
He graduated from Samoei High School in 1998.
Bungei represented his native country at the 2004 Summer Olympics in Athens, Greece. Bungei is from Kabirirsang, a village near Kapsabet.
He is a second cousin to Kenyan-born Danish former athlete Wilson Kipketer, while his mum is a cousin of Henry Rono. Bungei is based near Verona, Italy during track season.
He was part of the 4 x 800 metres relay team who currently holds the world record.