Swimming photos - Day 4

TOKYO, JAPAN - AUGUST 28: Mallory Weggemann of Team United States competes in Women's 100m Breaststroke SB6 Heat 2 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Nelson Crispin Corzo of Colombia competes in the Men's 100m Breaststroke SB6 Heat 2 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Yevhenii Bohodaiko of Team Ukraine competes in the Men's 100m Breaststroke SB6 Heat 2 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Tomotaro Nakamura of Japan competes in the Men's 100m Breaststroke SB6 Heat 1 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Lisa Kruger of Team Netherlands splashes water on herself as she prepares to compete in the Women's 100m Freestyle - S10 Heat 2 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Gustavo Sanchez Martinez of Mexico competes in the Men's 150m Individual Medley SM4 Heat 1 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Nataliia Butkova of Team Russian Federation competes in the Women's 150m Individual Medley - SM4 Heat 2 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Mar Gunnarsson of Iceland starts as he competes in the Men's 100m Backstroke - S11 Heat 1 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Charkorn Kaewsri of Team Thailand competes in the Men's 150m Individual Medley - SM3 Heat 1 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Aliaksei Talai of Team Belarus competes in the Men's 150m Individual Medley - SM3 Heat 2 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Mar Gunnarsson of Iceland competes in the Men's 100m Backstroke - S11 Heat 1 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Haven Shepherd of Team United States competes in the Women's 200m Individual Medley - SM8 Heat 1 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Yelyzaveta Mereshiko of Team Ukraine competes Women's 100m Breaststroke - SB5 Heat 2 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Haven Shepherd of Team United States competes in the Women's 200m Individual Medley - SM8 Heat 1 on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Maisie Summers-Newton of Team of Team Great Britain competes in the Women's 100m Breaststroke - SB6 Final on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)

TOKYO, JAPAN - AUGUST 28: Aurelie Rivard of Canada reacts after winning the gold medal in a new world record time in the Women's 100m Freestyle - S10 Final on day 4 of the Tokyo 2020 Paralympic Games at Tokyo Aquatics Centre on August 28, 2021 in Tokyo, Japan. (Photo by Buda Mendes/Getty Images)