Sheffield Eagles’ ability to keep calm and not panic when under pressure has won praise from coach Mark Aston.
They were matched for 60 minutes by York before running out 42-16 winners to complete a hat-trick of wins in nine days.
“We gave them three tries in the first half with mistakesbut it adjusted itself in the second when we defended well,” said Aston.
“We didn’t panic and we opened up and it could have been a lot worse for York.”
The win keeps Eagles three points ahead of Featherstone Rovers in the race for the Championship leader’s shield.
Third-place Leigh Centurions – who beat Eagles in the Rail Cup final three weeks ago - come to Don Valley on Friday.
Aston added: “Not many teams have it easy when they come to York so after three games in nine days I’ve told the lads well done.”
Aston rested key players in the last two games with James Davey, Matt Garside, Scott Turner and Peter Green taking a break for the York game.
There was a league debut for forward Leigh Sanders, a product of the Eagles development system and amateurs Hoyland Vikings.