When: Thursday through Sunday
Where: The Dome at America's Center, St. Louis
What's at stake: Places on the U.S. men's and women's rosters for next month's Tokyo Olympics. Four women and four men will be chosen for the team competitions.
The U.S. also will send two women and one man to compete as individuals in Tokyo. Jade Carey already has locked up one of the women's individual spots.
The format: Men and women will each have two competitions over two days, with cumulative scores determining the results.
The top two women in the all-around competition at the trials automatically make the Olympic team. A selection committee will choose the other two athletes for the team competition and one for the individual spot, based on results from the trials and the U.S. championships earlier this month.
In the men's competition, the top finisher earns an automatic spot on the team. The runner-up also will automatically qualify, provided he has placed in the top three in at least three of the six events. A selection committee will pick two more gymnasts for the team competition and one for the individual spot, based solely on results at the Olympic trials.
The schedule: The men's competition begins 5 p.m. Thursday and 1:30 p.m. Saturday. The women's competition starts 6:30 p.m. Friday and 7 p.m. Sunday.