Infrasoftech Walkovers A beat Armchair by four wickets to increase their lead at the top of the NatWest Indoor Cricket League to 26 points.
Armchair were restricted to 79-4, despite Ian Crocker's 44, with Andy Bouchard taking 4-14 and the leaders won with two overs to spare.
Rathbones OVs are second after a last-ball one wicket win over Springfield.
Walkovers have 89 points after seven games while Rathbones are now on 63 from eight, JJCA1 are on 61 from six.
In Division Two, Jersey Seniors are top and 11 points ahead of Phoenix Knights having played a game more, after a five-wicket win against bottom club United Banks.
Third-placed Pentagon lost ground after losing to Farmers/Caesareans Juniors by six wickets.