Kenya 's Peninah Arusei rounded out the top five with 1 : 09 : 08 .
Kenya 's Peninah Arusei is the world half marathon bronze medallist in 2010 and fourth in this race 12 months ago .
Kenya 's Peninah Arusei , the world half marathon bronze medallist in 2010 and fourth in this race 12 months ago , rounded out the top five with 1 : 09 : 08 .