Stillingfleet retained their lead at the top of division four after their three-wicket win at Huntington.
Brian Pudsey and Mick Storey both made 30s as Huntington reached 138-8.
Chris Walker was the pick of the 'Fleet attack with 2-44 from his 20 overs.
Storey and J Walker created all sorts of problems for the Stillingfleet batsman apart from opener Rob Murray, who hit a majestic 93 not out to lead his team home with seven overs to spare.
Acomb struggled to get a side together against Burn and crashed to a 204-run defeat.
Andy Watson and Ady Huetson gave Burn a great start with a partnership of 83.
However, it was the sixth wicket partnership of 126 between Ray Adamson and Nigel Horsley that enabled Burn to reach 271-7.
An exhausted Acomb had very little to offer in reply as Burn closed the gap on the leaders.
University Staff moved up into third place after their 109-run win over Heworth.
Ashley Pike got back among the runs with 64 giving Staff a sound start.
Useful knocks from Jan Heaton, Indra Ray, James Fenton and a dashing 28 from Simon Duckett saw Staff to 212-6.
The Staff bowlers were well on top with Ray taking 2-6 from seven overs and Mark Dusheiko 3-19 from his 11 overs as Heworth fell for 103.
Two wins for Heslington over the weekend against the struggling Acomb and Tadcaster saw them join the promotion race.
Tadcaster had Barry Emmott to thank for his 61 out of their team score of 84-9.
Lee Boulton added 42 to his five wickets in the six wicket win.
The following day Shaun Thompson's five-wicket haul helped dismiss Acomb for 95 leaving Boulton and Bob Taylor to coast home for Heslington.
Bottom of the table Stockton and Hopgrove, besieged with a spate of injuries, were no match for Bishopthorpe.
Dave Mallory was the cornerstone of the Bishopthorpe's 203-8 before being run out for 70 in bizarre fashion.
Thinking that he had hit another boundary he stopped in mid-wicket, but the ball hadn't reached the ropes and was promptly returned to the keeper.
Terry Ruane top scored with 24 for Stockton, who limped to 78-6 finishing the game with more injuries than they started.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules hereComments are closed on this article