Ervin stopped swimming competitively in 2003 , auctioned off his gold medal on eBay to aid survivors of the 2004 tsunami , but returned from retirement to claim his place on his second Olympics , in London , twelve years after his first . Both men would later go on to win another gold in this event outright ( Hall , Jr. in 2004 and Ervin in 2016 ) , edging out the runner-up by 0.01 second in their respective races
2004 tsunami
2004 Indian Ocean earthquake and tsunami
Swimming at the 2000 Summer Olympics – Men's 50 metre freestyle