Wheatley Hill WMC climbed into pole position on the back of a 2-0 home victory against newcomers West Auckland.
Wheatley failed to net four times for the first time this term, but two goals, courtesy of man of the match Lee Westgarth and Lewis Edwards, did the damage to take Wheatley to eight points from four matches.
Jamie Whitworth was the stand-out for West, who are still seeking a first victory in the league after managing just one point in their opening three games.
Sunderland side Hall Farm Glasshus saw their undefeated start end with a thrilling 4-3 loss to Durham City Reserves, who rose to second place.
Jack Wilkie capped a brilliant, all-round display to grab a match-winning hat-trick for City, backed by a strike from sub Jordan Nicholson.
Liam Wooton and two-goal sub Martin Hope bagged Hall Farm’s goals, though they were hampered by the dismissal of sub Lee Pearce. Chris Bewick was Hall Farm’s top performer.
Bishop Auckland Reserves maintained their unbeaten record with a hard-fought 2-2 draw away to Blackhill & Ebchester.
Dale Sadler and Jordan Wymer grabbed the goals for Bishops, but Mark Longstaff and Richard Parkin levelled things up for the home side.
Keeper Anthony Snowball stood out for Blackhill, with Kurt Matthews the top performer for Bishops.