Club stalwart Pek Cowan played 14 matches for the Force in 2015, passing inaugural captain Nathan Sharpe into second place on the club's record list. In doing so, he became just the second man to tally 100 caps for the Western Australian club, behind skipper Matt Hodgson. A foundation player, Cowan showed no signs of slowing down in his 10th Super Rugby season, bringing the powerful and aggressive game style the 'Sea of Blue' has come to expect from the 10-cap Wallaby since his 2006 debut.
A foundation Western Force players, and one of the few remaining players with links to the 2007 Australian Rugby Championship, Cowan played in the original Perth Spirit side along with current Spirit coach, Tai McIsaac.
After playing a number of games in the inaugural NRC in 2014, Cowan missed the 2015 season to injury, but remains an integral part of the plans in the west. Force prop Guy Millar made his Super Rugby debut in 2015, and credited scrummaging against 100-plus gamer Cowan at training as the best possible preparation a young prop could receive.