A total of eight men's teams and eight women's teams qualified to compete at the games in the five-a-side tournaments. For the men's event, the top seven teams at the
2017 FIBA AmeriCup, have qualified to compete. In the women's event, the
Olympic Champions the United States, have qualified to compete as well as the top six nations at the
2017 FIBA Women's AmeriCup. For each 3x3 tournament, the top five teams in each gender in the world rankings as of November 1, 2018 qualified. Host nation Peru was barred from participating by FIBA, following sanctions imposed on the Peruvian Basketball Federation.
Men's five-a-side • Both the defending gold and silver medallists (Brazil and Canada respectively) failed to qualify. • Peru was banned from the competition and was replaced with Venezuela. Canada as the next best team, declined the reallocated spot.
Women's five-a-side Both Paraguay and the Virgin Islands qualified for the women's tournament for the first time. • Peru was barred from the competition and was replaced with the next best team not qualified, Colombia.
Men's 3x3 Women's 3x3 ==See also==