On 5 July 2020, Courtois kept his 17th clean sheet of the 2019–20 La Liga season in a 1–0 away win over Athletic Bilbao, becoming the first Real Madrid goalkeeper to do so in a single season since Francisco Buyo in 1994–95. He was the undisputed starter during the league season, as Real Madrid won the 2019–20 La Liga., becoming the first player since Jose Luis Perez-Paya in 1954 to be crowned champion with both Real Madrid and Atlético Madrid. He won the Zamora Trophy for the third time in his career, after conceding just 20 goals in 34 matches.