Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)

Runners compete during the Moscow Half Marathon in Moscow, Russia on Aug. 2, 2020. (Photo by Alexander Zemlianichenko Jr/Xinhua)