Castleford Tigers moved two points clear at the top of Betfred Super League following a 27-10 win at champions Wigan Warriors.
Luke Gale contributed 15 points as the Tigers again underlined their title credentials by claiming a seventh win in eight matches.
The England international tagged on the extras to Jake Webster's 23d-minute opener and then converted his own try, set up by a Zak Hardaker break, two minutes later as Cas stepped on the gas.
Gale kicked a penalty after Wigan were penalised for offside but Morgan Escare gave the hosts hope by scoring six minutes before the interval.
However, Cas moved 20-4 ahead four minutes after half-time, Jesse Sene-Lefao brushing off three defenders to score between the posts, with Gale kicking the conversion.
Escare's second set up a nervy finish, racing clear in the 72nd minute before converting, but Greg Eden intercepted a Wigan attack to race the length of the field before Gale converted and then kicked a drop goal.
Castleeford coach Daryl Powell said: "I thought it was an awesome performance. We put ourselves under pressure right at the start with three handling errors which hurt us. We had to dig our way out of that and I thought we did it admirably.
"I think this was our best win of the season because of the nature of it. We've had victories where we're superb with the ball but tonight, just the sheer guts and determination gives us more belief that we can be there at the end.
"If we keep defending like that, teams will find it hard to break us down. It was one of the best defensive efforts since I came to the club. The boys have really bought into the way we're defending and that's really pleasing from a coaching perspective."
Wigan coach Shaun Wane said: "The effort was there, we were just a bit dumb. They (Castleford) are flying at the minute and playing a great brand of rugby. Our one-on-one defence was poor and the way we ended our sets was not good enough.
"They're a good team and you need to make sure you finish your sets. The only time they've made a lot of tackles and people have finished their sets against them was against Salford and they got turned over. That was the aim today but we weren't good enough.
"The players are hurting, it was a tough game to lose, but we look forward to next week."