
Jennifer Meadows (front) of Britain competes during the women's 800m race final at the IAAF World Challenge Meetings in Zagreb, Croatia, on Aug. 29, 2017. (Xinhua/Goran Stanzl)

Jennifer Meadows (front) of Britain competes during the women's 800m race final at the IAAF World Challenge Meetings in Zagreb, Croatia, on Aug. 29, 2017. (Xinhua/Goran Stanzl)