With the series at 2–1 leading into the Fifth Test in Sydney, Lawry struck 151 in the first innings after Australia were sent in to bat. The hosts made 619 and took a 340-run first innings lead, but their cautious captain let his team bat until they reached 8/394 to declare with a lead of 734, making 17 runs himself. The Australians still had enough time to take 382-run win and complete a 3–1 series win. His 667 runs at 83.38 was the highest series aggregate of his career. Lawry had expected a pace onslaught after Australia's last trip to the Caribbean had ended in defeat, but Wes Hall and Charlie Griffith had begun to slow down, taking their wickets at an average over 40.