Kristian Roocke attended St Ignatius College and played in the school's first 18 team. He also started at The Parade in the Redlegs under 13s.
In 2009 he was in the Norwood squad that won the Under 16 premiership and the following season appeared nine times for the under 18s in between his school commitments.
In 2011 Roocke played another six games for the under 18s and impressed in the reserves (17 games). With good anticipation and elite kicking skills, he proved to be a consistent half-back flanker/utility.
Roocke made his senior debut in June 2012, replacing Luke Jericho who injured himself in the warm up before the league match. He was a very late inclusion having just played a full game in the reserves. That was to be his only league appearance for the year however, as he continued to develop in the reserves (21 games).
The skilful junior played 11 league games in 2013 but was omitted from the powerful Norwood team in the finals.
Roocke had a breakout season in 2014. He played 20 senior games, including the Grand Final victory over Port Adelaide and established himself as a silky midfielder. He was named in the best players in the premiership decider.
His good form continued and he played 19 games in 2015 (reaching the 50 game milestone) and 18 in 2016, coming third in the best and fairest. In 2017 he was Norwood's leading goalkicker (25 goals/18 games).
Roocke then moved to the Adelaide Footy League where he had a successful stint with Payneham Norwood Union.
R Cialini January 2022