Hull KR (16) 48
Tries: Welham, Fozzard, Newton 3, Walker, Galea, Dobson, Colbon Goals: Dobson 6
Celtic Crusaders (12) 18
Tries: Lupton, Mapp, Smith Goals: Hannay 3
Clint Newton's hat-trick helped Hull KR beat winless Celtic Crusaders in a dress rehearsal for their upcoming Challenge Cup tie.
Crusaders looked lively early on and took the lead through Peter Lupton but they fell away after the break.
Kris Welham and Nick Fozzard crossed in the first half, along with Newton who finished his hat-trick after the break.
Chev Walker, Ben Galea and Liam Colbon also scored with Michael Dobson scoring a try and kicking six goals
After Lupton's opener, converted by Josh Hannay, Rovers levelled with Welham racing in before Fozzard scored his first try for the Robins since his close-season switch from St Helens.
Newton and Dobson both missed Darren Mapp on 28 minutes and Hannay's conversion squared the game at 12-12.
But right on half-time, Newton won the race to the ball in the corner to touch down and put Rovers into a 16-12 half-time lead.
It took just four minutes of the second half for Rovers to increase their advantage with the Crusaders defence failing to cope with a Dobson bomb and Walker touched down while Galea capitalised on a missed tackle soon after to put the Crusaders in more trouble.
From then on, the Robins dominated with Newton adding his second try on 58 minutes and completing his hat-trick 10 minutes later before Dobson grabbed a solo try on 72 minutes, which he also converted.
Matty Smith managed a consolation try for Crusaders late on but Colbon had the final say with a score right on the hooter.
Hull KR coach Justin Morgan:
"I thought the first half we were a bit loose and we got punished with a couple of tries and it could easily have been two more. We were also loose defensively but we steadied things at half-time.
"Crusaders are a good side and when they win and learn to win they will be fine. They have some good players and they made us scramble this afternoon.
"This Super League is a 27-week battle and today, regardless of the scoreline, we had to work hard."
Celtic Crusaders coach John Dixon:
"I thought we got what we deserved and I think Hull KR also got what they deserved.
"There was some expectation that we would come out in the second half and give a good account of ourselves but Rovers were terrific and played very well.
"We could not get a foothold in their half and their ball control was sensational - I think they made one error in the second half - and we did not get a penalty until the 79th minute."
Hull K R: Cockayne, Fox, Walker, Welham, Colbon, I'Anson, Dobson, Fozzard, Fitzhenry, Wheeldon, Newton, Galea, Murrell.
Replacements: Fisher, Lovegrove, Webster, Netherton.
Celtic Crusaders: Chalk, Dyer, Hannay, Dalle Cort, Blackwood, Quinn, Smith, O'Hara, Withers, Bryant, Beasley, Mapp, Lupton.
Replacements: Budworth, Peek, Flower, Chan.
Referee: B Thaler (Wakefield)