Wilson West Lawn (8-1, 9-1) recorded a 3-1 victory over rival Exeter (7-2, 7-2) on Thursday night to claim sole possession of first place in Berks I.
After splitting the first two games, the Bulldogs won the final two back-and-forth games to seal the victory.
Sheku Koroma paced the Bulldogs with 17 kills. Kyle Lorenz added 13 kills and Anthony Rivera had 44 assists.
Corbin Keller, who signed with Pfeiffer University earlier in the day, had a team-high 21 kills for Exeter. Ryan Santos added 20 kills and Nick Birch had 43 assists.
Wilson will host Daniel Boone on Saturday night. Exeter welcomes Fleetwood Tuesday night.