The top of the table clash was the worst affected by the weather that hung around the North Coast for most of the day.
An understrength Coleraine were well placed at 91 for 1 when an almost three hour delay happened. They had a further five overs to bat, but only added 18 for the loss of six wickets.
Patrick Carson (49) and Louren Steenkamp (42) their main run getters, while Anuj Jotin and Andy McBrine each took three wickets.
DLS gave Donemana a target of 152 in 29 overs, and they were made to fight to the last despite Gary McClintock making 42 and Anuj Jotin 27. It was getting interesting for the neutrals but David O'Sullivan's back-to-back sixes ultimately all but settled the contest.
Donemana now sit top and can extend their lead when they play their rearranged match at Bready on Sunday.
Newbuildings maintained their recent good form with a 61-run win over neightbours Bready.
Leeroy McKeegan (43) and Jason Dunn (42) laid the foundations with an opening stand of 67, and although they lost Peat Salmon first ball, 20s from Ryan Hunter, Ross Dougherty and Gregory McFaul allowed them up to 217.
Gavin Roulston took four wickets, while there were three for Ian Young and two for Josh van Heerden. The South African top-scored with 43 in a chase that struggled to really get going.
Ross Hunter took 3 for 25 as they warmed up for Sunday's Faughan Valley final at Ardmore with a win that keeps them in title contention.
Junaid Ali and Conor Brolly starred as Ardmore gave their chances of Premiership survival a real boost, plunging Eglinton right into the relegation dogfight mix.
It looked an unlikely scenario as four wickets for Mark Averill had Ardmore in real trouble at 53 for 6.
Junaid though was able to marshall the tail, hitting an even time 71 (7 fours, 3 sixes). Robbie Millar took two for five and the consensus was a total of 129 looked respectable but not enough.
The hosts had a tricky spell to negotiate before tea and lost three wickets as the realisation dawned this might be not be straightforward.
In ideal bowling conditions Conor Brolly took 5 for 28 and skipper Harry Zimmermann 3-20 as the Bleachgreen side won by 69 runs, and with it claimed the Shaun Bradley Memorial Trophy.
Brigade returned to winning ways thanks to half centuries from Adam McDaid and Scott Macbeth.
McDaid thumped a 49-ball 59 (6 fours, 3 sixes), while Macbeth top-scored with 65 (5 fours, 2 sixes) in a total of 228. Rhys Logue did well to pick up 4 for 19, while Aaron Mullen took two wickets.
Aaron Gillespie made a fluent 55 from 53 balls (5 fours, 2 sixes) and at 76 for 2 the Red Caps were very much in the game.
However, a spell of four wickets for just 12 runs ended the game as a contest, with Strabane dismissed for 140 - three wickets apiece for Scott Macbeth and JP Millar.
