Tennis is a game of points, not time. Unlike sports like basketball and soccer, the game does not end at a time limit, but rather when a certain score is reached. That did not work in Vicki Nelson and Jean Hepner’s favor in their match in 1984. Hepner and Nelson played a single point for 29 minutes, hitting the tennis ball back and forth a total of 643 times. This is by far the longest time it took to score a single point in tennis history.