CIYMS are through to the semi-finals of the Irish Senior Cup for the first time after beating Leinster by six wickets in Rathmines.
The home side requested the match be put back a week because George Dockrell and Gareth Delany were involved in Ireland's Twenty20 international against Zimbabwe last Sunday but James Cameron-Dow dismissed Delany in the fourth over, Dockrell was caught behind off Allen Coulter for one and at the end of the 11th over, Leinster were 18-4.
A fifth-wicket stand of 25 hinted at a recovery from 43-4 but Obus Pienaar broke that partnership and the last five wickets fell for 15 runs in four overs, Leinster all out for 61, with the South African finishing with 4-11 from 4.3 overs.
The chase wasn't entirely straightforward with CI's top three, for the second day in a row, being dismissed cheaply. Dockrell then trapped Pienaar leg before for 18 but Jason van der Merwe and Ryan Hunter ensured no panic, wrapping up victory in the 14th over, well before the rain arrived in Dublin.
It appeared much earlier at The Lawn and only 17.3 overs were possible in the other delayed quarter-final between Waringstown and Instonians, with the visitors having reached 52-2.
A minute's silence was held in memory of Waringstown member, player and supporter Paddy Allen, who would have been MC for the game but who died suddenly last Sunday.
The captains have agreed to replay the game at Shaw's Bridge next Sunday and although there are no competition rules for non-weather related postponements, both clubs expect Cricket Ireland to allow them a second attempt to complete the match.