At the 2016 Summer Olympics in Rio de Janeiro, Longová etched a historic mark for Slovakia as one of the country's first archers sent to the Olympic tournament, shooting only in the women's individual recurve. Longová managed to fire off a score of 641 points, 11 targets of a perfect ten, and 8 bull's eyes, for the twenty-second spot against a field of 63 other archers in the qualifying round. Heading to the knockout stage on the third day of the Games, Longová comfortably disposed the Indian archer Laxmirani Majhi at 7–1 in the opening round, before she faced her subsequent challenge against China's Qi Yuhong, abruptly ending her Olympic debut in a harsh 0–6 defeat.