Coached by Eric Kimaiyo in Japan's corporate running system, she set personal bests on the track of 9:16.21 minutes for the 3000 metres, 15:54.70 minutes for the 5000 metres and 32:47.98 minutes for the 10,000 m. She made her debut over the half marathon in the 2008 All-Japan Corporate Half Marathon Championships and was runner-up to Yukiko Akaba with a time of 69:06 minutes. That time ranked her 14th in the world that year for the distance. She again improved her bests in the Japanese track season with 15:38.83 minutes for the 5000 m and 31:58.50 minutes for the 10,000 m. She returned to the Corporate Half Marathon in 2009 and was the winner in a new best of 68:44 minutes. After a seventh-place finish at the Sapporo Half Marathon she was chosen to represent Kenya at the 2009 IAAF World Half Marathon Championships, where she came in eighth place. She also had success over 10,000 m that year, winning at the Hyogo Relays and coming third at the Japanese Corporate Track and Field Championships.