Ohashi Yui of Japan competes during women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Ding Ting)

Ohashi Yui of Japan celebrates after women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan competes during women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan celebrates after women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan competes during women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan competes during women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan competes during women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan enters water as she competes in women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan competes during women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)

Ohashi Yui of Japan competes during women's 400m Individual Medley final of swimming at the 18th Asian Games in Jakarta, Indonesia, Aug. 21, 2018. (Xinhua/Fei Maohua)