China's ultra-marathon runner Chen Penbin (R) warms up for a nighttime running event during the opening ceremony of the Beijing International Sports Film Week in Beijing, July 13, 2015. China's ultra-marathon runner Chen Penbin, who has completed 100 marathons in 100 consecutive days, joined 300 participants in the event to support Beijing’s bid to host the 2022 Winter Olympics. (Photo: China News Service/Zeng Ding)
