Answer
The 50m freestyle is the only freestyle distance in which Grant Hackett never held the world record. He came close, swimming a time of 21.56 in 2004, just 0.07 seconds off Then-world record. Hackett did, however, hold world records in the 200m, 400m, 800m, and 1500m freestyle events, showcasing his dominance in the middle and long-distance freestyle events.