Barnsley were dismissed for 113 in 34 overs, opening bowler Ollie Ezard taking 5-30 in 11 overs and wicketkeeper Mark Goddard holding four catches. It would have been even worse for Barnsley without an eighth-wicket partnership of 33 between Jason Booth and Nathan Firn.
Bethel then took 6-39 in 14 overs as Driffield were sent back for 89 in the 39th over despite a valiant 33 from No 4 George Drury, who was ninth man out.
With closest rivals York having no game, Yorkshire Academy increased their lead, recording a seven-wicket win over Appleby Frodingham with five balls to spare. David Brent hit an unbeaten 64 for the losers.
Harrogate gained their first league win since mid-June with a 37-run success at Castleford, whose last-wicket pair, Ben Shelton and Eddie Morrison, denied the visitors outright victory. George Ross and Ryan Bradshaw had a fourth-wicket stand of 103 for Harrogate, Ross’s 71 containing seven fours and a six, while Bradshaw made 56.
Doncaster returned to winning ways at Sheffield United, who were bowled out for 136 in the 52nd over and lost by nine wickets. Graeme Attenborough took 5-29 in 15.3 overs and fellow spinner Simon Widdup grabbed 4-13 from 14 overs. Widdup then shared an unbroken second-wicket partnership of 120 with Felix Odell, both men clocking up half-centuries.
Only one over was possible at Cleethorpes before a deluge ended proceedings against Sheffield Collegiate and Scarborough v Rotherham was washed out.