Career
Bentley original club was Hutt Old Boys Marist Reconstruction Finance Corporation in New Zealand, where as a Wellington Academy member he played for Wellington U21s and the Wellington XV. In 2007 he was the WRFU Club"s "Rugby Player of the Year". After playing for Yokogawa Musashino Atlastars, in Japan, he signed for the Cornish Pirates in the RFU Championship for the 2009-2010 season. Unfortunately, he suffered an Achilles tendon tear following abductor muscle trouble and did not play for seventeen months returning for the Pirates during the 2012-2013 season.
On 19 June 2013, it was announced that Bentley would join Gloucester Rugby in the Aviva Premiership on a one-year contract for the 2013-2014 season.
On 6 June 2014, Bentley returned to the RFU Championship as he signed a contract to join Jersey for the 2014-2015 season. Bentley returned to the RFU Championship with Ealing Trailfinders for the rest of the 2015-2016 season.