Career
Signed from Castleford amateur side Smawthorne ARLFC.
Cain Southernwood signed for Bulls mid-2010 from Wakefield Trinity Wildcats on a 3-year deal. Statistic do NOT include pre-season friendlies. 2010 - 2010 Season
Southerwood made his début against Warrington Wolves due to an injury to Matt Orford.
He featured in the following game against Castleford Tigers, but then wasn"t selected for the remainder of the season.
2011 - 2011 Season
Southernwood featured in three of the four pre-season games. He played against Halifax, Dewsbury Rams and Keighley Cougars.
Cain scored a try against Keighley Cougars. Southernwood was not selected to play in any league or cup matches this season.
2012 - 2012 Season
Southernwood was sent on a season long loan to Championship side Dewsbury Rams.
2013
Southernwood signed for for the 2013 Championship season. He scored a try against Keighley Cougars. He kicked 3 goals against Workington Town and kicked 5 against Sheffield Eagles.
In the Challenge Cup he scored a try and kicked 5 goals against London Skolars.
Southernwood also scored in the Northern Rail Cup against London Skolars. Cain kicked 3 goals against Hunslet Hawks.
He scored 2 tries and kicked 3 goals against Sheffield Eagles and also kicked 3 goals against Leigh Centurions. He scored a try against Keighley Cougars, Leigh Centurions and Swinton Lions.
2014
Southernwood kicked 3 goals against Keighley Cougars.
In the Challenge Cup he scored a try and kicked 4 goals against York City Knights. Southernwood kicked a goal in the loss to Halifax. He kicked 4 goals against Barrow.
He scored a try and kicked 2 goals against Barrow.
He kicked 3 goals against Workington Town. Southernwood kicked 5 goals against Bulldogs.
He kicked 4 goals and a drop goal against Doncaster and he scored a try and kicked 3 goals against Swinton Lions. Southernwood kicked a goal against Featherstone Rovers.
2015
On Friday 26 September 2014, Cain signed a contract with Bulldogs to play for the club beginning in 2015.
