Title holders East Riffa defeated Isa Town 10-8 in the fourth round of the bowling tournament at Ozone Bowling Centre in Sitra Mall.
East Riffa totalled 1715 points while Isa Town collected 1631.
In another encounter, Manama defeated Riffa 14-4. The winners claimed 1715 points while Riffa got 1379.
Meanwhile, Bahrain Club edged past Deaf Team 12-6 with 1665 points. Their opponents could only manage 1458 points.
In another fourth-round clash, Al Hala beat Umm Al Hasssam with 1674 points.
Manama top the table with 48 points, followed by East Riffa (46), Bahrain Club (40), Al Hala (38), Umm Al Hassam (32), Riffa (32), Deaf Club (28) and Isa Town (24).