Wigan Warriors boss Matt Peet told BBC Radio Manchester:
“It was a fitting occasion for Billy with everything the club did and the atmosphere in the ground.
“I thought the performance was befitting.
“The fans and the people in the crowd who’ve had a sad week, we have a responsibility.”
Hull KR head coach Willie Peters told BBC Radio Humberside:
“I’m really proud of the performance. We had a young side tonight and we didn’t stop fighting until the end. We played against a good team, who were extremely disciplined and give you nothing.
“The inexperience we had in this team tonight, the main thing is that we said we need to fight for everything. We gave them a few things but they did the badge proud.
“I’ve always said players have to earn the jersey, it’s not given to them. It was different circumstances tonight and there were probably three players who could have played but they’ve played a lot of rugby league.”
Wigan: Field; Eckersley, Keighran, Wardle, Marshall; French, Smith; Havard, O’Neill, Thompson, McDermott, Partington, Ellis.
Interchanges: Walters, Mago, Kerr, O’Connor.
Hull KR: Broadbent; Horne, Gorman, Booth, Kershaw; Mourgue, Charles; Sue, Leyland, Luckley, Martin, Dearlove, Lawton.
Interchanges: Amone, Fishwick, Murphy, Woods.
Referee: Aaron Moore.