[5][6] Impey is a two-time winner of the Tour Down Under, and the only rider to have won the race in consecutive years, winning in 2018,[7] and 2019.

[9] After riding for MTN–Qhubeka and Team NetApp in 2011, Impey joined GreenEDGE for the squad's inaugural season in 2012.

[13] Impey confirmed his good form a couple of days later by taking the fourth place on the Grand Prix Cycliste de Québec.

[14] In 2015, Impey had to abandon the Tour de France after being involved in a massive crash on the third stage.

[16] In August 2020, it was announced that Impey was to join Israel Start-Up Nation from the 2021 season – alongside his former Barloworld teammate Chris Froome – on a two-year contract.