Beverley Town extended their lead in division one to 24 points after a six for 50 stint by Shaun Lightowler set them on the way to a three-wicket win over bottom club Dringhouses.
John Crowe (28) and Ian Bews (25no) were the only two Dringhouses batsmen to show any form as they were dismissed for 127.
Beverley's reply saw Tim Smith (40) and Tim Fordon (46no) take the East Yorkshire side to their sixth win of the season and leave Dringhouses 14 points adrift at the foot of the division.
Second-placed York just managed to defend a score of 140 for nine to gain the better of a draw with Duncombe Park, who closed on 133 for eight at Shipton Road.
Shaun Gorman (36) was the solitary York batsman to show form as Colin Humpleby took four for 49. Park's most successful batsmen were Andrew Pierson (36) and Piet Rinke (29) as Park just failed to reach par.
Another draw at Pocklington saw Sessay settle for the minor share of the spoils. Ian Camwell (40), Kev Hinch (28no) and Nathan Job (33) took Pocklington to 142 for eight, with teenager Steve Langstaff capturing four for 53.
In Sessay's reply of 123 for eight, Nick Harrison, who will join Langstaff in the league's White Rose team against the South Riding League, made 32 and Chris and Matt Till 26 each. Adelaidian Job took three for 41 and Kev Hinch three for 37.
Stamford Bridge eased their relegation fears by inflicting a heavy defeat on Wilberfoss, who have now slipped into the bottom two.
Batting first, Wilberfoss were restricted to 132 for eight by Alan Day's three for 33, Geoff Room making 39 and Mike Stothard 30.
The Wilberfoss bowlers then drew a blank as Fraser Clarkson (68no) and Peter Aconley (49no) steered Stamford to victory.
Brothers Mick and Norman Pipes were in opposition at Stillington where home player Norman helped his side gain an advantage draw over Crayke.
Mick Pipes drew first blood as he captured Stillington's first two wickets, trapping Paul Mosey lbw for seven and then bowling Shammy Dissanayake for 11.
The highly rated Mohammed Hafeez, who will receive the monthly batting award for May at a presentation evening on Tuesday at York Brewery, had made 33 before he was caught by Dave Thomas of Mark Hutchinson at 83 for four.
Dave Herbert was then joined by captain Dave Allitt and the pair shared a half-century partnership before the former was caught off Thomas for 32.
Allitt quickly followed for 29 but Norman Pipes boosted his side's total to 188 for nine with an unbeaten 29.
Hutchinson was Crayke's most successful bowler with four for 89 off 22 overs.
When Crayke replied, Thomas and Jon Wright reached 67 before the latter was bowled by Hafeez for 14.
Thomas dominated the scoring but was run out for 56 at 81. Hafeez then quickly removed the Hutchinson brothers as Crayke slipped to 93 for four.
The boat was then steadied by Graeme Dawson (38) and P Carr, who added 60 before Dawson was sixth out at 153, having ensured a draw.
Carr was not out with 25 when the game ended with Crayke totalling 156 for five, Hafeez earning four for 35 in his 16 overs of spin.
Carlton Towers' game against Driffield was abandoned due to waterlogged conditions.
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