Women's 10k, Heat 1 - Irene Cheptai Leads 23 women under Olympic standard

Watch the fast section of the women's 10K where Irene Cheptai led 23 women under the Olympic standard, notably Marielle Hall in her debut (31:37), Kellyn Taylor (31:40), and collegian Erin Finn who ran a 50-second PR in 31:51.