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In this photo provided by ISF/Meeting, competitors climb stairs during a race of Stairclimbing World Championships in Osaka, western Japan, on Nov. 19, 2023. (ISF/MEETING via AP)

In this photo provided by ISF/Meeting, competitors climb stairs during a race of Stairclimbing World Championships in Osaka, western Japan, on Nov. 19, 2023. (ISF/MEETING via AP)

In this photo provided by ISF/Meeting, runner Yuri Yoshizumi competes during a race of Stairclimbing World Championships in Osaka, western Japan, on Nov. 19, 2023. (ISF/MEETING via AP)

In this photo provided by ISF/Meeting, runner Yuri Yoshizumi competes during a race of Stairclimbing World Championships in Osaka, western Japan, on Nov. 19, 2023. (ISF/MEETING via AP)

In this photo provided by ISF/Meeting, runner Yuri Yoshizumi crosses the finish line during a race of Stairclimbing World Championships on Nov. 19, 2023 in Osaka, western Japan. (ISF/MEETING via AP)

In this photo provided by ISF/Meeting, runner Yuri Yoshizumi crosses the finish line during a race of Stairclimbing World Championships on Nov. 19, 2023 in Osaka, western Japan. (ISF/MEETING via AP)

In this photo provided by ISF/Meeting, competitors start a race of Stairclimbing World Championships in Osaka, western Japan, Nov. 19, 2023. (ISF/MEETING via AP)

In this photo provided by ISF/Meeting, competitors start a race of Stairclimbing World Championships in Osaka, western Japan, Nov. 19, 2023. (ISF/MEETING via AP)