Ervine has played for Midlands in Zimbabwe. In February 2010, Ervine signed for the Zimbabwean domestic circuit with Southern Rocks. On debut against the Mid West Rhinos, Ervine made a top score of 100, his first first-class century. He has played for the Matabeleland Tuskers since the 2011/12 season.

On 2 August 2015, Ervine scored his first ODI century against New Zealand, an unbeaten 130 runs in a match which Zimbabwe won chasing more than 300 runs.

On 6 August 2016 Ervine scored his maiden Test century, playing against New Zealand at Harare.

On Zimbabwe's 2017 tour of Sri Lanka in 2017 Ervine scored a match winning 69 runs to level the five-match series 2-2. Zimbabwe won the 5th ODI and won the first ever series against Sri Lanka as well.

Ervine's second Test century came against Sri Lanka on 14 July 2017 at the R Premadasa Stadium.

Ervine's father Rory and uncle Neil both played first-class cricket for Rhodesia B in the 1977/78 Castle Bowl competition^[7][8] and another uncle, Gordon Den, played for Rhodesia and Eastern province in the 1960s.^[9] Den's father, Ervine's grandfather, Alexander Den is recorded as having made one appearance for Rhodesia against the touring Australian national side in 1936.^[10]

Ervine's brother, Sean Ervine also played for Zimbabwe and, after leaving the country in 2004, forged a successful career in English county cricket with Hampshire. Another brother Ryan played domestic limited overs cricket in Zimbabwe in 2009/10^[11]

Ervine almost had a hand amputated in his early teens following a freak accident where he slipped and fell on broken glass in his family's living room. The injury required a three-hour reconstructive operation to his right hand.^[12]