Glamorgan failed to qualify for the quarter finals of the T20 blast after losing to Gloucestershire in a reduced 5 over match at the SWALEC Stadium.
The home side reached 41-1 off their allocation, opener Colin Ingram hitting a quickfire 18 off 8 balls.
But the visitors reached the target with seven balls to spare, opener Chris Dent hitting two sixes off Michael Hogan's penultimate over to see his side safely into the last 8.
Glamorgan now turn their attention to the Royal London One Day Cup - they take on Nottinghamshire Outlaws in the 50 over competition tomorrow.
England captain Alastair Cook thanked the crowd in Cardiff for their loyal support and praised Joe Root for his performance.
He said he was very happy with the way his side played as they enjoyed a 169 run victory over Australia in the first Ashes Test to take a 1-0 lead in the series.
Chasing 412 to win, Australia lost four wickets for nine runs in 35 balls and were bowled out for 242 in Cardiff.
"It was a brilliant performance and just while we mention the crowd, over the four days they have been absolutely fantastic and the support the have shown the whole team - coming to the ground and singing when it was getting a little flat - and I think English cricket this summer really appreciates the support we've got."
Man of the match Joe Root, who celebrated his seventh Test century during the match, was pleased with the result in the Ashes opener and was delighted to contribute with his 134 first-innings total, also claiming two wickets and two catches over the four days.
"It was nice to pick up a couple of wickets. I'm just really thrilled to be a part of this win. The guys have played well all week and as a team I thought we performed exceptionally well. First up in an Ashes series you want to make sure you put a marker down and we really wanted to get off to a good start and it's good to get that win ahead of the rest of the series and hopefully we can now back that up at Lord's."
Aussies have arrived en masse to enjoy the Ashes. But has Swalec Stadium - and the rest of Cardiff - lived up to their expectations?
The Ashes clash between England and Australia begins in Cardiff this morning. The Test is expected to bring in £5m for the Welsh economy.Read the full story ›
Jacques Rudolph has been appointed Glamorgan captain for the 2015 season replacing Mark Wallace. The South African scored almost 2,000 runs in the first XI this year winning the club's List A player of the year award and broke the Glamorgan List A record with an unbeaten 169 against the Sussex Sharks.
He leads from the front and has shown throughout his career, and in his first season at Glamorgan, that he is a true professional and role model for younger players.
Mark Wallace has done a fine job as Club Captain during the course of the past three years, demonstrating tremendous dedication and commitment to the role and he will continue to be a valued and experienced voice in the dressing room and on the field within a leadership capacity.
Glamorgan's T20 Blast quarter-final against Lancashire at Old Trafford has been rained off this evening. The match will take place tomorrow at 2pm instead.
The start of Glamorgan's match against the Lancashire Lightning in the quarter-final of the NatWest T20 Blast at Manchester's Old Trafford has been delayed following steady rain for most of the day.
Glamorgan have signed West Indian all-rounder Darren Sammy for the T20 season. He will join Glamorgan until the domestic twenty overs competition starts in the Caribbean.
Glamorgan chief executive and director of cricket, Hugh Morris said: "Darren's skills with bat and ball have delighted crowds all around the world in Twenty20 competitions in recent years so we're delighted to welcome him to Glamorgan."
The First Minister has described news that the Ashes 2015 opener will be held in Cardiff as 'fantastic for Wales' - and says he hopes it will inspire a new generation to take up cricket.
We proved the critics wrong when we hosted the opening Test Match here in 2009 and are becoming renowned for our ability to successfully stage some of the highest profile events in the world.
Attracting major events not only boosts our international profile, but has clear benefits for our economy. The 2009 series alone is estimated to have brought in around £2.4million to Wales.
I'm sure cricket fans across Wales will be delighted by this news and I hope it will inspire a new generation of fans to take up the sport and get behind their local county cricket team.
- Wed 8 – Sun 12 July: 1st Investec Test Match SWALEC, Cardiff
- Thu 16 – Mon 20 July: 2nd Investec Test Match Lord's
- Wed 29 – Sun 2 Aug: 3rd Investec Test Match Edgbaston
- Thu 6 – Mon 10 Aug: 4th Investec Test Match Trent Bridge
- Thu 20 – Mon 24 Aug: 5th Investec Test Match Kia Oval
- Mon 31 Aug: NatWest IT20 SWALEC, Cardiff