Derbyshire lost their perfect record in Group A of the Royal London One-Day Cup when rain ruined their clash with Worcestershire at New Road.
When the visitors' response to Worcestershire’s total of 261 all out was halted they were up in the Duckworth-Lewis calculations but still 14 balls short of batting for the minimum period of 10 overs.
Openers Billy Godleman and Wes Durston made it to 37-0 in 7.4 overs when a series of thundery shows began to roll in over the Malvern Hills.
If they had been able to get back on the field in time to reach the 10-over requirement, they would have needed only six more runs to wrap up a third straight victory in the first week of the competition.
But instead the match finished with no result, with Derbyshire skipper Wayne Madsen at least being able to take some solace from the fact his bowlers – especially Mark Footitt (4-65) and Tom Taylor (3-48) – continued their strong form.
The main highlight for Worcestershire was a fifth-wicket stand of 114 in 18 overs between Tom Kohler-Cadmore (71) and Ross Whiteley (53).
Elsewhere in Group A, Jack Taylor claimed four wickets as Gloucestershire made it back-to-back victories with a 35-run win over Hampshire at Bristol.
The home side were dismissed for 233 after losing the toss, Will Tavare top-scoring with 77 on his first one-day appearance of the season while Benny Howell hit an unbeaten 43 against his former club.
In reply Hampshire looked well placed at 150-3 in the 34th over before three run-outs and some accurate bowling saw them plunge to 198 all out, with off-spinner Taylor returning 4-38 and Will Gidman 2-47.
The result gave Gloucestershire four points from their opening three 50-over fixtures, leaving Hampshire on two from the same number of games.
Scott Styris started his tenure as Leicestershire's limited-overs captain by playing a leading role in his side's 34-run win over Essex at Chelmsford.
In a low-scoring match, the veteran New Zealander made an unbeaten 44 to underpin a modest total of 142 all out which still proved too much for a disappointing home side, who were dismissed for just 108 in 32.3 overs.
Essex lost half their side for33 runs and never recovered their momentum after Anthony Ireland had produced a destructive spell of 4-16 in his first four overs to help guide Leicestershire home.