Born in Kyoto, Kizaki attended the city's Miyazu High School before moving on to further study at Bukkyo University.

[9] As a result, she was chosen to represent Japan in the shorter event at the 2010 Asian Games in Guangzhou, where she took tenth place.

[1] She was also selected for the 2010 IAAF World Half Marathon Championships for a third time and had her best finish, coming in tenth place to take the team bronze for Japan with Yoshimi Ozaki and Azusa Nojiri.

In spite of hot conditions and poor pacing, she ran a personal best of 2:26:32 hours and defeated her more favoured compatriot Yoshimi Ozaki.

[15] Kizaki improved her best by three minutes at the Nagoya Marathon in March 2013, running a time of 2:23:34 hours to win the race and another international selection.