In addition, Santoro won what was, at the time, the longest singles match in the open era: at the 2004 French Open, he beat fellow Frenchman Arnaud Clément in a 6-hour 33 minute first-round match (6–4, 6–3, 6–7(5), 3–6, 16–14). The record stood until John Isner defeated Nicolas Mahut at Wimbledon in 2010, but still remains the French Open record.