Gloucestershire 179 for 6 (Phillips 44, Douthwaite 3-28) beat Glamorgan 175 for 9 (Labuschagne 93*) by four runs
Marnus Labuschagne's superb unbeaten 93 off 56 balls couldn't stop Gloucestershire from starting their Vitality Blast campaign with a four-run win over Glamorgan
Glenn Phillips' 44 and 30 from Benny Howell off 15 balls saw Gloucestershire post 179 for 6 in Cardiff which always looked like being a challenging total. And despite Labuschagne's fine innings on his Blast debut, Glamorgan fell just short against some tidy Gloucestershire bowling.
Glamorgan weren't helped by batting second and the fact there were no floodlights available at Sophia Gardens as the skies darkened.
Gloucestershire won the toss and chose to bat, and Glamorgan opened with spin at both ends. Andrew Salter cleaned up Miles Hammond in his first over. Ian Cockbain then skied to Timm van der Gugten at mid-on off the bowling of Ruaidhri Smith for 16 as Gloucestershire reached 34 for 2 from their first six overs.
Gloucestershire struggled in the first powerplay, but Phillips got the scoreboard moving with consecutive sixes and then a four off Salter. But just when Gloucestershire looked like they were getting going, Chris Dent was caught superbly by Kiran Carlson on the cover boundary for 20 from the bowling of Dan Douthwaite.
Phillips was the mainstay of the Gloucestershire innings as they went past 100 in the 13th over. But he fell short of 50 to the part-time spin of Labuschagne when Nick Selman took a fine catch on the mid-wicket boundary.
Labuschagne followed in Selman's path with another boundary catch to dismiss Jack Taylor, but Gloucestershire finished with a flourish as Smith's 18th over went for 16.
David Lloyd's fine form continued as he started Glamorgan's reply with a quickfire 28 which included two sixes before he was clean bowled by Josh Shaw. Selman soon followed Lloyd back to the pavilion and when Colin Ingram was clean bowled by Shaw for just a single Glamorgan were 46 for 3 from the first powerplay.
Labuschagne and Chris Cooke rebuilt the innings to take Glamorgan to 80 for 3 at the halfway stage and Cooke was dropped on the midwicket boundary in the 11th over. But he wasn't so lucky when he was caught by Hammond from the bowling off Tom Smith for 26, leaving Glamorgan's chase in the hands of Labuschagne.
He did go to the game's first half-century from 36 balls, but Carlson fell for 14, Douthwaite was lbw first ball and Salter was run out for a duck trying to keep Labuschagne on strike.
Labuschagne gave it everything, but he needed 19 from the last over and couldn't find the boundary enough despite a six from the last ball as Ryan Higgins held his nerve.