Castleford came from being 8-6 down at half-time to win 28-8 at Hull KR on Thursday night.
Hull KR coach Tony Smith made three changes to his side that lost to Huddersfield last week. Matt Parcell (ankle), Harvey Livett (head knock) and Robbie Mulhern (suspension) dropped out of the side.
Jez Litten, Owen Harrison and Matty Gee came in for the Robins, with the latter making his debut for the club.
Daryl Powell made just one change to his Castleford outfit that won at Wakefield last time out. Adam Milner returned from injury and replaced Jacques O’Neill.
Hull KR got off to the perfect start as Ben Crooks continued his impressive try scoring form to touch down in the sixth minute.
The Tigers started to come back in to the game in the second quarter and a break from Paul McShane saw skipper Michael Shenton go over out wide.
But it was Hull KR who led 8-6 at half-time thanks to a penalty goal from Ryan Brierley with the last kick of the first half.
Scotland international Brierley was sin-binned just a minute after the half-time restart for holding Grant Millington back from chasing a kick. Richardson added a penalty goal as a result.
Richardson caused problems for Hull KR all night and he scored his first try for Castleford in the 49th minute.
Further efforts from James Clare and Mike McMeeken saw the Tigers run-out 28-8 winners at Hull College Craven Park.
Hull KR: Dagger; Minikin, Kenny-Dowall, Linnett, Crooks; Keyes, Brierley; Murray, Litten, Maher, Gee, Storton, Hadley. Subs: Garbutt, Trout, Harrison, Minchella.
Tries: Crooks Goals: Brierley 2/2
Castleford: Rankin; Olpherts, Mata’utia, Shenton, Clare; Trueman, Richardson; Watts, McShane, Griffin, Holmes, McMeeken, Massey. Subs: Millington, Milner, Blair, Smith.
Tries: Shenton, Richardson, Clare, McMeeken Goals: Richardson 6/6
Watch our Last Tackle podcast, featuring a guest, every week. SUBSCRIBE to Love Rugby League on YouTube.