Sussex saw their 50-over fixture against Oxfordshire washed out at picturesque Wormsley.
Put into bat by their hosts, in one of 18 National Counties fixtures across the country, Sussex lost Harrison Ward cheaply in only the fourth over.
But Henry Rogers and Tom Alsop shared a 127-run stand for the second wicket in 19 overs at Sir Paul Getty's Ground, with sides of a short rain delay which saw the match reduced to 47 overs per side.
Rogers hit a six and five fours to reach 73 off 75 balls, before he was trapped leg before by George Tait and another 14 minutes were lost to the weather, trimming it to 45 overs each.
But Alsop added an unbroken 67 with captain Tom Haines and was 90 not out from 77 deliveries, having hit three sixes and seven fours, when rain stopped play after 31 overs.
Haines was unbeaten on a run-a-ball 26, with Sussex 204-2, but the match was abandoned two hours later with no further play having been possible.
Several other fixtures suffered the same fate and Sussex will hope for better when they welcome Buckinghamshire to Hove on Tuesday.
They begin their Metro Bank One Day Cup campaign against Durham at the 1st Central County Ground on Friday, August 4 (11am).
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