Leaders Eastenders were given a bowling lesson by Halfpints in the Mill Inn Division One of the Boston Indoor Bowls League.
The underdogs claimed all six points to move into mid-table.
Holland Fen took advantage, moving top by a single point.
Freelanders recorded their first win of the season when beating third-placed Carlton Road 4-2.
A40 beat Invaders 4-2 and Jolly Farmers beat IBC 5-1.
In Division Two, Punchbowlers beat Norprint 6-0, Strollers won 4-2 against Crowns, Golfers won 6-0 against Patriarchs, Swineshead added a 6-0 results against Amateurs, Parthians beat Feathers 4-2, and Breakaways beat Boston Park 6-0.
In Division Three, Poachers recorded a 6-0 victory at the expense of the Fairways.
Autos moved up into second place despite a 4-2 defeat against Shipmates, Sibsey lost 5-1 against BBC, Vikings took all six points from The Burtons, Traders got the better of Highflyers 4-2.
Hotspurs, making their debut in the league this season, got no change out of Central, who took all six points.