札幌国際ハーフマラソン
She began competing over the marathon distance and made her debut at the 2007 Osaka International Ladies Marathon, where she finished third overall with a time of 2:24:43. She won her first marathon race later that year at the Hokkaido Marathon, leading from the very start in her first victory. The following year she won at the Rock ‘n’ Roll San Jose Half Marathon, over half a minute ahead of the rest of the field. She recorded a significant half marathon best of 1:08:57 to win at the 2008 Sapporo Half Marathon.