George Beckett finished from a massive 160 as favourites for the Plymouth Open League Division A title Cherry Tree in a 9-2 win at Ker St B.
That win leaves the champions-elect twenty-one points clear with a game in hand over their rivals.
Ker St C and Weston Mill Oak Villa B played out a topsy-turvy affair in which the lead changed hands five times before the Devonport side's captain, Ty Carthy, secured the final game in a last leg decider for a 6-5 win.
That win leaves Ker St C six points above their Weston Mill based rivals for the runner-up spot and four ahead of third placed St Levans who also won by the odd leg in eleven against Mainstone.
The Lugger enjoyed a 7-4 success over bottom side Cherry Tree B with Jason Goldsmith notching a maximum in the tie.
There was a maximum a piece for Pennycross and their opponents, Weston Mill Oak Villa A, with the Pennycross coming out on top 7-4.
Alonzo Marshall struck for the victorious home side with Logan Carroll replying for the visitors.
In Division B, Railway hold a slender lead of just four points at the top thanks to a 6-5 home defeat against Fortescue, which is a fifth defeat of the season for the Devonport team.
The Mutley team were good value for their win as Josh Pritchard scored a maximum and Russell Hitchcock finished from 102 in the encounter before Lee Medway win a last leg decider for the win.
Sean Taylor finished a 125 in a remarkable fashion with a 25 followed by two bullseyes in his Ford team's 8-3 win against Weston Mill.
Falstaff are now second in the standings after an 11-0 whitewash victory over bottom side Ker St D; an eleventh win in fifteen games.