 Playing for Australia A against India A in July 2014 at Allan Border Field, Marsh scored 211 runs batting seventh in Australia's first innings, his first double century.He and Sam Whiteman, who scored 174 runs, put on 371 runs for the seventh wicket, an Australian record and the second-highest seventh-wicket partnership recorded, behind the 460-run record set by Bhupinder Singh and Pankaj Dharmani during the 1994–95 season.The previous Australian record, set by Queenslanders Cassie Andrews and Eric Bensted, had stood since the 1934–35 season.