RFL League 1
Club Wins Winning years
1 Dewsbury Rams 2 2006 , 2009
2 Hunslet 2 2010 , 2014
3 York City Knights 2 2005 , 2018
4 Keighley Cougars 1 2003
5 Barrow Raiders 1 2004
6 Celtic Crusaders 1 2007
7 Gateshead Thunder 1 2008
8 Swinton Lions 1 2011
9 Doncaster 1 2012
10 North Wales Crusaders 1 2013
11 Oldham 1 2015
12 Rochdale Hornets 1 2016
13 Toronto Wolfpack 1 2017
14 Whitehaven 1 2019
Results -- Winners
League 1 (for sponsorship reasons currently known as the Betfred League 1 ) is a professional rugby league competition based in the United Kingdom. The competition also features clubs from Wales, and previously included clubs from Canada and France. It is the Rugby Football League 's (RFL) third-tier competition, below the Championship , with which it has promotion and relegation . The league was inaugurated in 2003 when the Northern Ford Premiership was divided into two separate leagues , initially named National League One and National League Two. In 2009, the league names were changed to the Championship and Championship 1 respectively, with the latter adopting its current name of League 1 in 2015.