Gloucestershire 150 for 9 (Mustard 57, Hogan 5-17) beat Glamorgan 32 for 2 by five runs (DLS method)
Gloucestershire beat Glamorgan by five runs on the Duckworth-Lewis-Stern method, despite career-best figures of 5-17 for Michael Hogan, with Jacques Rudolph's dismissal off what became the final ball proving a match-winning moment.
Only five overs of the run chase were possible as the rain came when Glamorgan were 32 for 2, chasing 151 to win, after Thisara Perera bowled Rudolph moments before the players left the field. Had that wicket not fallen, the scores would have been tied on DLS.
The match was due to resume at 9.15pm with a revised target of 114, meaning Glamorgan would have required 82 from nine overs, but further heavy rain arrived to bring an end.
Having won the toss and put Gloucestershire in to bat, Glamorgan's bowlers struggled to find their line early on and at the end of the Powerplay Gloucestershire were solidly placed on 45 without loss.
However, a bowling change paid off as Craig Meschede, with his first delivery, had Klinger caught by Andrew Salter attempting a pull shot.
Phil Mustard brought up his fifty with an on-driven six off Salter in the 12th over, and Ian Cockbain added a six of his own in the same over as the visitors reached 97 for 1.
Meschede made a second breakthrough when Ian Cockbain skied to Michael Hogan at mid-off for 22 and he ended with 2 for 28.
Colin Ingram was brought into the attack and claimed the scalp of Mustard for 57 when he picked out deep midwicket.
Kieran Noema-Barnett took Ingram for two boundaries and Jack Taylor was given a life when he was dropped on the midwicket rope by Aneurin Donald.
However, Donald did take the chance offered by Noema-Barnett which began Hogan's late burst. Hogan took another two wickets in the over, bowling Taylor for 10 before Thisara Perera was removed by an impressive catch from David Miller.
Hogan added a fourth when he bowled George Hankins and, after the run out of Matt Taylor, he removed Benny Howell off the final ball of the innings.