Martínez started the 2018–19 season by winning the German Super Cup as Bayern defeated Eintracht Frankfurt with a 5–0 victory. On 19 January 2019, following a 3–1 win over Hoffenheim, he reached 100 Bundesliga wins with Bayern Munich in his 120th appearance for the club, breaking the record previously held by Arjen Robben, who took 126 matches.