Rangi Chase capped a virtuoso display with two tries as Castleford maintained their engage Super League play-off hopes as they beat fading Hull 40-18 on Sunday.

Stand-off Chase was the outstanding figure as the Tigers outscored their visitors by seven tries to three at the The Jungle to move into a five-way tie for fifth place.

Most of the damage was done in the first half as Craig Huby, Michael Wainwright and Ryan Hudson found their way over after Chase's opener.

Chase scored again early in the second half, before Michael Shenton and Wainwright wrapped up only the Tigers' third home win of the season and first since March.

Hull KR maintained their place in the top four as they overcame a shaky start to beat Bradford 32-12at Craven Park.

Liam Colbon and Kris Welham grabbed two tries apiece as Rovers recovered from 6-0 and 12-6 down to claim victory.

Teenager Kyle Eastmond calmly stepped into the boots of Sean Long to guide St Helens to a thrilling derby win over Warrington that maintains their lead at the top of the standings.

The little scrum-half, who turns 20 next Friday, created tries for Ade Gardner, Lee Gilmour and Paul Wellens and then scored the match-clincher 11 minutes from the end to finally end Warrington's hopes of a first derby win for eight years. The final score was 40-26.

Eastmond, a natural replacement for broken-jaw victim Long, also kicked six goals from eight attempts to further lay a claim to the number-seven jersey when the former Great Britain scrum-half leaves Knowsley Road at the end of the season.

England prop James Graham made sure of the points for the leaders when he crashed over for his second try of the match and winger Francis Meli added a late score to give Saints a flattering margin of victory.

A barnstorming try from prop forward Garreth Carvell had earlier promised to end Warrington's long wait for a derby win as the home side led 24-18 but once again Saints finished the stronger side to extend their dominance of this fixture.

The Wolves have now won just one of 35 Super League meetings with their neighbours.

Also on Saturday, Brett Hodgson guided Huddersfield to a vital 32-16 win at stuttering Harlequins as the Giants kept up the pressure at the top of the table.

Hodgson crossed for two late tries and booted 12 points as the visitors eased past the Londoners for the third time this season, having dispatched Quins in both the league and cup.

Michael Lawrence, Leroy Cudjoe and David Hodgson got the other tries for the third-placed Giants, while Chris Melling (twice) and Luke Gale touched down for the hosts.

There was a rare win for Celtic Crusaders, who gave themselves the slightest chance of finishing off the bottom with a superb 25-12 victory over Salford.

Tries from Luke Adamson and Stuart Littler, both converted by John Wilshere, had put the visitors 12-0.

But the Crusaders responded with Marshall Chalk launching what turned out to be a memorable fightback.

Wing Anthony Blackwood grabbed another try which, when converted, levelled the scores.

Lincoln Withers then put the hosts ahead for the first time and Matt Smith grabbed their fourth try.

A Smith drop-goal in the final minute put the seal on the victory.

On Friday night, Scott Donald touched down in the dying seconds to give Leeds a famous 32-30 victory and deny Wakefield a first home win over the reigning champions in almost 17 years.

The Wildcats had not beaten their illustrious neighbours on home soil since a Stones Bitter Championship fixture in October 1992 - four years before the advent of summer rugby.

They led 30-28 with a minute remaining but Australian wing Donald capped a glorious late comeback by the Rhinos when he went over in the right corner to give his side a 15th straight win at Belle Vue.

Leeds had been reduced to 12 men when Brent Webb was sin-binned with 10 minutes remaining but they refused to surrender and ultimately outscored John Kear's side by six tries to four to underline their quality.

Danny McGuire and Matt Blaymire traded early tries and it continued to be nip and tuck as Danny brough kicked the Cats in front only for Keith Senior to cross the whitewash and level at 10-10.

Wakefield forged ahead again shortly before half-time when Sam Obst scampered through and Brough added the extras.

But Leeds caught their opponents cold within seconds of the restart when Ryan Hall raced down the left wing before finding Rob Burrow who dived over in the corner.

Sinfield added the conversion with aplomb but Wakefield edged 18-16 in front minutes later when Brough landed a routine penalty.

The lead was extended by tries from Scott Grix and Ryan Atkins - both set up by Brough kicks. With Brough continuing to boot points, the hosts found themselves 30-16 up.

However, Leeds hit back in the 65th minute when Lauitiiti waltzed through for a fine score. Despite Webb's dimissal, Burrow claimed his second before Donald dived over in the right corner in the closing stages to complete a fine comeback.

In the night's other game, Wigan held off the tenacious Catalans Dragons to secure a precious 24-22 victory that consolidates their place in the top eight and virtually ends the Dragons' hopes of a place in the play-offs.

Man of the match Pat Richards contributed two of the Warriors' five tries but the clinching score came from centre Darrell Goulding, who celebrated his return to the club in style with the winner eight minutes from the end.

The Dragons had twice come from behind to take the lead and were 22-14 ahead when winger Dimitri Pelo scored a wonder try on the hour, but Wigan took advantage of a tiring defence to touch down twice in the last 15 minutes.