After coming through the ranks of Counties Manukau's under-18, B and development teams, Martin cracked the senior squad in 2016 Mitre 10 Cup. He took advantage of injuries to several key players to establish himself as a regular in a side which reached the premiership semifinals and lost to Canterbury. He played all eleven of the Steelers games during the campaign, nine from the start.[2][3] He was drafted into the Chiefs squad shortly before the 2017 Super Rugby season.[4]