Walsh secured her spot on the U.S. Olympic team with a victory in the women’s 100m butterfly final on Sunday.
2024 Summer Olympics
Biles finished with a combined score of 119.750 while Skye Blakely finished in second and Kayla DiCello came in third.
It's the final event for US gymnasts before the Olympic Trials take place at the end of June.
Douglas withdrew after suffering an ankle injury while training for the event.
The Department of Justice and the International Olympic Committee could launch inquiries into the controversy.
She also took the gold medal on floor exercise, as well as silver medals in the uneven bars and balance beam.
Oleksandr Pielieshenko, 30, was a two-time European gold medalist.
The US Olympic trials take place in Eugene, Oregon, next month, while the Paris Games begin on July 26.
The United States is forecasted to come home with the most medals of any country at the 2024 Summer Olympics.
The flame will next be carried from the ruined temples and sports grounds of Ancient Olympia by a relay of torchbearers.
Images of the outfits were made public last week as part of a kit launch ahead of Paris 2024.
World Athletics will pay $50,000 to gold medalists in Paris.
NHL Commissioner Gary Bettman said the parties involved understood how “important” it was to the players to represent their countries.
US figure skaters awarded Olympic gold, Canada snubbed from bronze after Russian skater disqualified
Russian figure skater Kamila Valieva was handed a four-year ban over a long-running doping controversy.
The deal will cover the upcoming Summer Games in Paris, the Milan Winter Games in 2026, and the 2028 Summer Games in Los Angeles.
Baseball/softball, cricket, lacrosse and squash will also be included at the Games.