During the 2011–12 season, Casillas won the IFFHS Best Goalkeeper award, making him only the second goalkeeper behind Gianluigi Buffon to win it four times and the only goalkeeper to win the award four times in a row. Casillas played his 600th match for Real Madrid on 22 January 2012 in a 4–1 win against Athletic Bilbao. On 2 May 2012, Casillas clinched his fifth La Liga title and his first as a captain of Real Madrid, with a 3–0 win in Bilbao.