In Photos: Tokyo Marathon 2017

Marathon runners start in unison outside the Tokyo Metropolitan Government Building in Tokyo's Shinjuku Ward on Feb. 26, 2017. (Mainichi)

Tokyo Gov. Yuriko Koike delivers a speech during a ceremony prior to the start of the Tokyo Marathon in Tokyo's Shinjuku Ward on Feb. 26, 2017. (Mainichi)

Marathon runners start in unison outside the Tokyo Metropolitan Government Building in Tokyo's Shinjuku Ward on Feb. 26, 2017. (Mainichi)

Sarah Chepchirchir of Kenya breaks Japan's national record for women's marathons as she wins the women's marathon in Tokyo's Chiyoda Ward on Feb. 26, 2017. (Mainichi)

Sho Watanabe, front, wins the men's wheelchair event in Tokyo's Chiyoda Ward on Feb. 26, 2017. (Mainichi)

Wilson Kipsang wins the men's marathon in Tokyo's Chiyoda Ward on Feb. 26, 2017. (Mainichi)

Hiroto Inoue finishes in eighth position in the men's marathon in Tokyo's Chiyoda Ward on Feb. 26, 2017. (Mainichi)

Yuta Shitara finishes in 11th position in the men's marathon in Tokyo's Chiyoda Ward on Feb. 26, 2017. (Mainichi)

Ayaka Fujimoto crosses the finish line at the end of the women's marathon course in Tokyo's Chiyoda Ward on Feb. 26, 2017. (Mainichi)

Runners finish in waves outside Tokyo Station in Tokyo's Chiyoda Ward on Feb. 26, 2017. (Mainichi)