Burythorpe gained revenge for last week's Cup defeat by York in a masterful fashion to go clear in division one.
Burn held far too many aces for struggling Hemingbrough to run up the day's highest score of 259 for 3 to retain third position. Norwich Union keep in touch after their nine-wicket defeat of Heworth while Stockton and Hopgrove remain in mid-table after beating Bishopthorpe.
Thorpe Willoughby stay top of division two without bowling a ball as Thixendale - beset by foot and mouth problems on their ground - conceded the game.
British Sugar moved into second place after beating bottom club Kelfield.
Clifton Alliance slip to bottom after conceding ground advantage and the game to Fulfordgate.
Copmanthorpe go top of division three after beating Escrick Park while an under-strength North Duffield went down at Melbourne.
Tollerton continue forge ahead in division four after containing Acomb.
The University Staff XI ran up another 200 plus against Heworth to keep second place. Ovington moved off the bottom after their thrilling two-wicket win against Selby.
Stockton and Hopgrove beat Thorpe Willoughby to retain their top spot in division five, where York are second after their middle order revived them enough to beat a gallant Tadcaster Magnet.
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