Having started his career in his native New Zealand with both Auckland City and Central United, Boxall relocated to the United States in 2011 to study at the Northwestern University of Illinois.[2] He joined the school's soccer team, The Wildcats, and won numerous accolades including Big Ten Defender of the year in 2014 and led the 'Cats to a Big Ten "Double" in 2011. He tallied 76 appearances in total, scoring 7 goals.[2]
After leaving school, Boxall moved to Germany, and joined Regionalliga Südwest (level 4 in the German football league system) side SVN Zweibrücken. However, after the team withdrew from the league due to insolvency,[3] Boxall moved to Finland and joined Veikkausliiga side Vaasan Palloseura.[4]
After two seasons with VPS, Boxall agreed a contract with fellow Veikkausliiga side Kuopion Palloseura ahead of the 2017 season.[5][6]