On the 1921 Ashes tour, Macartney—who needed a special medical clearance before being selected— had a chance to rectify his poor batting performances of his pre-war tours of England. He scored 87 against
Surrey, 51 against Combined Services and 77 against
Oxford University in the next seven matches leading up to the start of the Tests, with a total of 539 runs at 53.90 under his belt. after managing only 31 and eight in the eight-wicket win in the Second Test, hit three consecutive centuries. Macartney took only 135 minutes and hit 31 fours as Australia added more than 300 in just over two hours of batting. However, his most famed innings was yet to come. The cricket writer
Sumner Reid described Macartney's innings as: the most destructive innings I ever saw in England or Australia. Not Trumper at his brilliant best, nor even Bradman in his calculated genius, ever performed with more unadulterated, murderous power and masterful technique. In the space of four days, Macartney had scored 538 runs, and for the month of June, he had totalled 913 runs at 91.30. but helped Australia to victory by 191 runs and an unassailable 3–0 series lead. Macartney had a quiet time over the next month, passing fifty only once in the next eight innings in seven matches. He also ended his wicket-taking drought, claiming six in three matches after almost two months without success. He took only eight wickets at 32.63 for the entire tour. Macartney then scored 59 and 116 in an aggressive display in the First Test in
Durban, which was drawn, with the hosts hanging on with only three wickets in hand. After missing the Second Test due to fitness reasons, Macartney returned against
Western Province. He took 5/40 in the first innings, his first five-wicket innings since June 1912, nine and a half years earlier. In the Third Test in
Cape Town, Macartney scored 44, before taking 5/44 in the second innings to ensure that Australia would only have to chase a solitary run. He bowled three of his victims and removed
Billy Zulch twice. The hosts struggled against the dual spin of Macartney and Mailey. Australians went on to secure a ten-wicket victory. Macartney finished the Test series with seven wickets at 14.86. He totalled 492 runs at 70.28 and 14 wickets at 17.14 for the tour, against topping the batting averages. Macartney started the 1922–23 season strongly, scoring 63 and 84 and taking 2/8 in a five-wicket win over the touring MCC in the first match of the summer. He only passed fifty once more in the season and took 5/8 in an innings against Victoria. Macartney totalled 350 runs at 29.16 and 12 wickets at 12.16 in eight matches for the season. The next Australian season was a shortened one for New South Wales. Macartney scored 174 runs at 21.75 and took seven wickets at 21.14 in four matches before his state embarked on a tour of New Zealand. Macartney struck form immediately, scoring 80 and 120 in the opening match against
Wellington. He followed this with 100 (in a non-first-class match), 120 against
Otago and 221 in the next match against
Canterbury, all in consecutive innings. He added match figures of 4/38 as New South Wales defeated Canterbury by an innings. Macartney then scored 36 and 55 not out and took match figures of 4/55 in an eight-wicket win over New Zealand. He made only two and seven in the remaining first-class matches, and ended with 13 wickets at 20.92. Macartney missed the 1924–25 Test series when England toured Australia. He played in only two first-class matches in the early stages of the season, scoring 11 runs at 3.66 and taking five wickets at 23.40. The withdrawal of Macartney from competition was attributed to a flare-up of an injury he had suffered during World War I, but sceptics believed that he had suffered a
nervous breakdown. Following his year off, Macartney returned to full-time cricket in 1925–26. He re-established himself in his first match, scoring 114 and taking a total of 4/49 as New South Wales crushed Western Australia by an innings and 235 runs. Macartney then scored 84 and 28 to help the Rest of Australia defeat the national team by 156 runs. He then scored two centuries as New South Wales won all four of their Sheffield Shield matches, three by an innings. Up to this point, Macartney had scored 582 runs at 72.75 and taken 20 wickets at 20.30. This was enough for him to be selected for the
1926 tour of England. His most notable performance with the ball was his 7/85 and 2/16 in an innings victory over arch-rivals Victoria. His wickets included batsmen
Bill Woodfull (twice),
Bill Ponsford,
Jack Ryder and all rounder
Hunter Hendry, who played alongside him in the 1926 Tests. Following his selection for the England tour, Macartney warmed up by scoring 66 and 163 not out and taking a total of 4/48 in consecutive innings victories for the Australian touring party over
Tasmania. == International farewell ==