[1][2] Born and raised in New Zealand, Ainsley moved to Western Australia in search of his big break in the game.
Ainsley was selected by the Perth Spirit for the 2015 National Rugby Championship season.
He played in nine matches in total for the Spirit in 2015, starting two of them and this secured him a spot in the Western Force's wider training group ahead of the 2016 Super Rugby season.
[2][3][4] Injuries to props Tetera Faulkner and Francois van Wyk gave Ainsley the opportunity to earn valuable game time during his debut campaign.
He earned his first cap in Round 1 against the Melbourne Rebels and played in nine of the Force's fifteen matches that year, one of which was as a starter.