In the 1967–68 season Leeds won both the League Cup and the Fairs Cup. That was the first season in which Giles was affected by injury, which meant he missed the second leg of the Fairs Cup final. In the 1968–69 season, Giles was instrumental in Leeds becoming league champions in a then record 67 points from 42 matches at 2 points for a win, a record that stood for ten seasons. In 1970, Giles again had a magnificent season as Leeds chased three trophies but lost all three, the League went to Everton; the FA Cup to Chelsea after a replay; and the European Cup campaign ended at the hands of Celtic in the semi-finals.