Tigers and Saints among winners
Castleford beat Leeds 14-12 in a dramatic Super League derby on Sunday, with St Helens, Hull and Hudersfield also claiming victories.
Castleford were 12-10 behind against Leeds until Jamie Ellis levelled matters with a 40-yard kick in the 74th minute.
He was on target again five minutes later with a kick from in front of the posts as the Tigers grabbed their first win since last July.
It was a deserved victory for the battling Tigers who were inspired by England stand-off Rangi Chase against an off-colour Leeds side.
Jordan Tansey and Jake Webster scored Castleford tries, while Danny McGuire and Ryan Hall bagged scores for the Rhinos.
Meanwhile, St Helens maintained their 100 per cent Super League record against Widnes with a 16-4 victory.
The result gives coach Nathan Brown his first win but it took the 60th-minute dismissal of Vikings prop Ben Cross to swing the match their way.
The game was finely balanced with the scores locked at 4-4 when a mass brawl erupted on the hour following a high tackle on St Helens captain Paul Wellens.
Referee James Child's response was to hand Cross a red card and send Widnes captain Jon Clarke to the sin bin and Saints took full advantage to seal victory with the aid of tries by Lee Gaskell and Francis Meli.
Meli had bagged his first try in the first half after Stefan Marsh went over for Widnes.
Hull muscled up in defence to beat Bradford 28-12 at the KC Stadium and put their opening-night misery behind them.
Peter Gentle's were comprehensively beaten, 36-6, by Leeds in the first game of the 2013 season last week, producing a meek performance that belied their status as title dark-horses, a tag earned after a winter of heavy investment.
But they showed their mettle on Sunday, particularly in their own half, as they repelled a Bradford side on a high from their 40-point win over Wakefield last Sunday.
Jason Crookes, Shannon McDonnell, Tom Briscoe, Daniel Holdsworth and Jay Pitts scored Hull's tries.
Matty Blythe and Brett Kearney were the men to over for the Bulls.
In the day's other game, hooker Shaun Lunt scored twice as Huddersfield powered to their second win of the new season with a 34-6 victory over London Broncos.
Eorl Crabtree, Craig Kopczak, Brett Ferres and Joe Wardle also scored tries for the Giants. Shane Rodney crossed for London.