U.S. gymnastics, full of star power and potential, selects its team for Tokyo

The fourth spot, though, is uncertain. Grace McCallum earned the fourth-best all-around score, and she performed well all weekend. But MyKayla Skinner, an alternate for the 2016 Olympics, was just three-tenths of a point behind, and she has a great vault that could contend for an individual medal. Leanne Wong, despite a rough beam routine Friday, was great on vault and floor, the two events this fourth gymnast would likely be needed on during a team final. Wong had the second-best combined floor score of the competition, behind only Biles.