Todd Pearson was a relay specialist at two Olympic Games. At Sydney 2000, he joined with Ian Thorpe, Michael Klim and William Kirby to shatter the world record when winning the gold medal in the 4 x 200 metres relay. In the 4 x 100 metres relay, Pearson and Adam Pine swam in the heats before Thorpe, Klim, Chris Fydler and Ashley Callus shattered another world record in defeating the United States on the first evening of the swimming competition. Four years later at Athens 2004, Pearson finished sixth with the 4 x 100 metres relay squad and swam in the heats of the longer relay before Thorpe, Klim, Grant Hackett and Nicholas Sprenger claimed the silver medal behind the United States in the final. At the 2001 world championships, Pearson joined with Callus, Klim and Ian Thorpe to win the 4 x 100 metres relay and inflict the first loss on the United States in this event at the swimming world titles.