Zorko was born and raised on the Gold Coast where he attended Benowa State High School throughout his teenage years. His Slovenian father immigrated from Yugoslavia to Melbourne before settling on the Gold Coast and having children. His brother, Beau, is the former senior coach of the Broadbeach Cats and Surfers Paradise Demons. Dayne began playing junior football for Surfers Paradise at the age of four and played more than 250 junior and senior games for the club, which included an under-16 premiership where he played alongside future AFL players Ricky Petterd, Brent Renouf and Jesse White. In 2007, he decided to switch clubs to Broadbeach for his final year of junior football in pursuit of top level QAFL exposure to increase his AFL draft chances. Zorko captained Queensland during the 2007 AFL Under 18 Championships and was named the state's best player during the national carnival, but was overlooked in the 2007 AFL draft. He remained at Broadbeach for the 2008 season and picked up his first senior best-and-fairest award but was again overlooked in the 2008 AFL draft. In March 2009 the newly formed GC17 consortium invited a then 20-year-old Zorko to train with their under-18 TAC Cup team, which Zorko hoped would lead to a VFL contract with the club for the following season but Gold Coast's interest waned after two weeks. By the end of the 2010 season, Zorko had amassed three consecutive senior best-and-fairest awards at Broadbeach but still failed to capture the interest of any AFL clubs. He found himself at a crossroad when being offered contracts to play in higher standard state leagues outside of Queensland but eventually decided to stay at Broadbeach for the 2011 NEAFL season. Broadbeach coach Matt Angus knew Zorko had the skills to make it in the AFL but described his professionalism as "nowhere near that" required of an AFL player. At the conclusion of the 2011 season, after winning the NEAFL's Syd Guildford Trophy as the Football RecordPlayer of the Year, along with a fourth consecutive club best-and-fairest with Broadbeach, he was put back on AFL recruiters' radars. Zorko later revealed his reason for staying in Queensland was the hope that the recently established Gold Coast Suns AFL team would draft him with their local access zone concessions.
AFL career
Zorko was recruited by as a Queensland zone selection, before being on-traded to the. Zorko made his AFL debut against at the Gabba in round 7, 2012, and quickly made a name for himself as a small half-forward flank who could kick freakish goals, leading to the nickname "The Magician". He quickly became a cult figure at the Lions despite the team's woes, with Michael Voss being sacked as coach before the end of the 2013 season and the Lions hovering around the lower reaches of the ladder for several seasons. After a consistent first few seasons, Zorko was named as the joint winner of the Merrett–Murray Medal in 2015 as Brisbane's best-and-fairest, alongside Dayne Beams, Stefan Martin and Mitch Robinson. He went on to also win the award in 2016 and 2017, as well as lead the Lions' goalkicking during those seasons, and was also selected in the 2017 All-Australian team as a forward pocket. Zorko replaced Beams as the Lions' captain during the 2018 season after Beams stepped down from the captaincy for personal reasons, with Harris Andrews taking over as vice-captain from Zorko. His first match as captain was in round 10 against at the Gabba.
