Seamer jumped to the top of the Beckett League Premier Division when they saw off Nawton Grange by five wickets.
Seamer took control early on as they reduced Grange to 48-3, but 32 from Joe Lush, 35 from Phil Marwood and 53 from Charlie Allott helped them to 193.
Paul Greenhough was the top Seamer bowler as he took 3-37, while Adam and Matty Morris were both among the wickets with three apiece.
Anthony Jenkinson was the star of the show in the reply, as he made an unbeaten 99, which was added to by scores in the 20s from Adam Morris and Darrol Lewis to take Seamer to the win.
Tom Garbutt was the top Grange bowler, securing 3-48.
Staxton joined Seamer on 119 points after the toppled Cayton by 22 runs.
Nick Gibson took the batting plaudits for Staxton as he made 90 of their 162-8, Chris Dove chipping in with 26, while Steve McAleese (2-30) and Alex Townsend (2-37) took the lion's share of the wickets.
Townsend then went on to make 32, with McAleese and Tom Ward reaching the 20s, but Kingsley Gray's 3-29 and Nick Ringrose's 2-39 made sure Cayton dropped off the pace.
Heslerton knocked Filey off top spot as they won their meeting by 29 runs.
Heslerton made a solid start to the game with an opening stand of 43, of which Rob Middlewood contributed 23. Fellow opener Jake Keyworth kept the march going with 37, while Tony Watson's 42 took the score to 160-8.
Ryan Baldry was the top Filey bowler with 5-46, he then launched a late rally in their innings with 19, teaming up with David Brannan (31). But after helping Filey recover from 72-8, they couldn't push them over the winning line.
Champions Staithes crushed Forge Valley by 130 runs.
A knock of 92 from Richard Hegarty and 61 from Simon Bowes pushed Staithes to a hefty tally of 275-7.
Carl Jackson and Nishadh Wijesinghe both took two wickets, before the latter hit 43 not out to add to Tom Brough's 51, but impressive figures of 5-17 from Chris Morrison ended the play.
Scalby returned to winning ways when they beat Ebberston by four wickets.
Scores of 39 from Adrian Turnbull and 26 from Alex Machen put Ebberston on the front foot, but they eventually closed on 158-7, with James Deaves and Paul Hesp both taking three wickets.
Adam Waugh's 55 and Cannor Carson's 44 then finished the job for Scalby, as they won with an over remaining.
Mulgrave bagged their first win of the season when they crushed Flixton 2nds by 124 runs.
After being put into bat, Kieran Noble led the way with 70 for Mulgrave, while 38 from Andrew Spenceley and an unbeaten 53 from Andrew Thompson took them on to 226-5.
The bowling of Craig Thompson (3-11) and all-rounder Spenceley (4-12) then wrapped up the victory, despite a battling 43 from Steve Hill.
In Division One, Settrington secured their place at the head of the pile with a tight win by 20 runs against Sherburn.
Settrington closed on an attainable 152, aided by George Routhwaite's 56, while Mike Holtby (3-32) and Kev Lickes (3-38) took the wickets.
Craig Sanderson and Dan Simpson then reached the 30s, but fine figures of 6-28 from Eddie Rounthwaite and 2-34 from Andy Monkman brought things to a conclusion with 13 balls left.
Cloughton bagged their win by five wickets against Wykeham with just two overs to spare.
Knocks of 65 from James Bryant and 48 from Steve Clegg put together the majority of Wykeham's 175, while Glynn Botterill, Tom Watson and Jack Hakings all took three wickets each.
Matty Graves' 3-21 put up the resistance for Wykeham, but Chris Malthouse (68), Ben Luntley (35) and Richard Ward (30) secured the win and second place in the division.
Staxton 2nds were 21 runs better than Thornton Dale in their clash.
The Staxton cause was boosted by Sean Pinder's 80, with Liam Scott adding 46 to their total of 180-8.
Matthew Todd (30) and Richard Boyes (28) gave Thornton some hope, but 5-23 in Mark Dove's 12-over spell closed things out for Staxton.
There was no play possible in the games between Wold Newton and Brompton and Grindale versus Cayton 2nds following rain in the region.
Fylingdales marched back to the top of Division Two after they beat Great Habton by four wickets.
Habton posted a useful 169, with Rob Richardson (60), Jack Stockdale (37) and John Lumley (27) leading their charge. Will Richardson was comfortably the top bowler with 6-25 from eight overs.
A score of 82 from Barry Heyes set Fylingdales on the right track, with Duncan Steele adding 29. Lumley continued his good day with 3-13, but his efforts were in vain.
Lewis Brearley was a man in form for Scarborough 3rds as they beat Ravenscar by 49 runs.
Brearley's 104 took Scarborough to 230-8, which proved to be too much for Ravenscar.
Ivan Kirk's 54, an unbeaten 45 from Shaun Bayes and 36 from Andy Bloomfield made things interesting, but three wickets for C Hooper handed Scarborough the victory.
Sewerby 2nds grabbed a comfortable 10-wicket win against Ebberston 2nds.
Mike Horsley (24) was the only Ebberston batsman to get runs on the board as Calvin Roache (3-18) and Jake Hatton (3-24) ended their innings on 101.
That total proved to be inadequate, as an unbeaten 65 from Lewis Beasley and 29 not out from fellow opener Chris Briggs guided Sewerby over the winning line.
Ganton grabbed an easy 115-run win against Scalby 2nds.
The Ganton lads tallied 260-4 from their overs, as Alastair Limb (77), Greg Mills (44) and Rob Gretton (75no) set about the attack.
Adrian Hollingsworth and Sam Fox made starts with 31 and 24, but 3-20 from Mills and 3-26 from K Richardson took out Scalby for 145.
Bridlington 2nds had too much for Forge Valley 2nds, as they won by three wickets.
Valley were taken down for just 92, as Tom McMeeken's 5-20 and Matthew Clay's 3-21 caused them endless problems.
Tom Varey's half-century supplied the majority of the Valley runs.
Jaymaine White then pushed Brid all the way in the reply with 4-38, but they still managed to edge home to book the win.
Flamborough's Harry Burton took the bowling honours in Division Three, when his team beat Heslerton 2nds by 10 wickets.
Burton's 5-5 took out Heslerton for just 68, Les Towse hitting 26 of those runs.
Luke Dixon's unbeaten 43 completed the job for Flamborough.
Another bowler in top form was James Wilson, who bagged 6-15 as Wykeham 2nds beat Flixton 3rds by six wickets.
Wilson's spell took Flixton out for 58, a score that was comfortably passed, due to Scott Wardman's 26 not out, though John Sowden took 2-9 to keep things lively.
Kirkbymoorside took full advantage of their being no play between Muston and Seamer 2nds, as they beat Ryedale by eight wickets to move into second.
There were three wickets each for Sam Newman, Howard Mudd and Adam Magson as Ryedale were bowled out for 87.
Martin Charlton led the reply with 46 as Kirkby charged home.
Division Four leaders Snainton grabbed another victory, as they beat Wold Newton 2nds by five wickets.
S Harrison hit 76 for Newton to give them some momentum, but the deadly duo of Leigh Watson (4-36) and Luke Smith (3-32) took them out for 134.
Youngster Smith then posted an unbeaten 39 to steer Snainton over the line with 3.4 overs remaining, though Tim Lazenby's 3-26 had given them a few concerning moments.
Amol Gaikwad had a superb afternoon as his Hospitals Rugby Club side beat Sherburn 2nds by eight wickets.
Gaikwad's 6-18, linked with Mark Kelly's 4-34 saw off Sherburn for 57. The all-rounder then carried Hospitals to the 19-point haul with an unbeaten 27.
Cayton 2nds underlined their early-season promotion hopes with a win by 52 runs against Cloughton 2nds.
Liam Buglass (4-29) and Colin Ward (3-38) looked to have put Cayton in trouble on 132 at the half-way stage, with Shakil Iqbal's 60 contributing many of their runs.
Jacob Codling hit 39 to boost Cloughton's hopes further, but 3-8 from Lee Pettitt helped shoot them down for 80.
Filey 2nds secured a four-wicket win against Lockton.
A knock of 35 from Simon Oxendale was the only batting highlight for Lockton, as Lee Plant's 4-26 and 3-10 from Kev Chapman bowled them out for 82.
John Lay made things interesting in the reply with 3-27, but 32 not out from Kyle Scaife took Filey to the points.
Muston 2nds were victorious by just four runs in their Division Five clash against Ganton 2nds.
Scores in the 30s from Matthew Kings, John Precious and Dave Meer pushed Muston on to 194-5, Freddie Lockwood taking three of the wickets to fall.
Dan Reardon's 64 and 27 from Lockwood pushed Ganton towards the win, but Kings' 3-37 made sure they dropped off the pace.
Valley Bar Nomads remain on top of the pile after they beat Wykeham 3rds by four wickets.
Lewis Eustace's 37 and Josh Briggs' 25 took Wykeham to 124, Babu Matthew's 4-29 halting their progress.
Anosh George and John Walkington both reached the 30s in the reply and Praveen Jayaraj was unbeaten on 27 as the Nomads strode to the win.
Ravenscar 2nds won their first game of the season when they beat Scalby 3rds by 14 runs.
Ravenscar seemed to be in trouble at the half-way stage, as they were bowled out for 98. A Millward taking 4-25 and John Nelson hitting 28 of their runs.
Nelson then took 2-11, while the father and son pairing of Jon and Luke Stokoe shared four wickets to give Ravenscar victory.