Not many teams leave Ravenhill with a win, but the second-string Ospreys muscled their way to a 20-12 victory that Holley says is a turning point in their season.
"We didn't start the season well, probably because we were in a new home and we had a lot of injuries to key players, but I think you've seen the real Ospreys in the last couple of weeks," he said. "The win in Ulster was brilliant - we had about a dozen players missing, but the other guys really dug deep. Not many teams will win in Ulster this season and it was a very nice feeling to return with the points."
Holley said the defending champions had no intention of taking their hands off the Celtic League trophy just yet.
"We're about sixth on the table and I think a lot of the top teams will take points off each other. And looking at the draw, about seven of our last 10 games are at home. We know we can't afford to lose too many more games, but it's a bit early to write us off just yet.
"Our next game is the Powergen Cup match against Bristol on December 2, and - touch wood - we should have a full compliment of players back by then. The likes of Gavin Henson and Ryan Jones are targeting that match, and I don't think many teams will be looking forward to playing us when all our players are fit."
Outside-half Shaun Connor - who is enjoying the best season of his career - was again the Ospreys' hero on Friday night. He slotted four penalty goals and a clever dropped goal to compliment the effort of scrum-half Jason Spice, who scored the only try of a hard-fought match.
Principality Stadium will host the UEFA Champions League Final in six weeks' time. WRU chairman Gareth Davies, Football Association of Wales chief executive Jonathan Ford and Ambassador Ian Rush joined young sports fans at the trophy arrival at the venue to celebrate the magnitude of the event on Saturday 3rd June (kick-off 19.45).
British and Irish Lions captain Sam Warburton is looking forward to bringing together players from Ireland, Scotland, England and Wales for the biggest challenge of their careers - a series against world champions, New Zealand.
For the fifth year running, Wales referee Nigel Owens will be in charge of proceedings at Judgement Day V at Principality Stadium. It promises to be 'extra special' for the Wales' favourite ref, as he will be making his 150th appearance in the league.
There will be no shortage of inside knowledge from Bowl Finalists Caerphilly and Amman United when they face each other on Sunday at National Finals Day. Caerphilly hooker Rhys Cleverly knows the Principality Stadium pitch better than most as a matchday groundsman, while Amman United can look to Wales' record try scorer Shane Williams for some helpful advice.
Two hundred and 40 teams competed in the inaugural Urdd WRU 7s held at Pencoed last week with Welsh internationals Steff Andrews and Jasmine Joyce impressed with the talent on display, as was Urdd chief executive, Sioned Hughes.
The countdown is on for Judgement Day V as tickets for the big day at Principality Stadium soar through the 50,000 mark. Players and coaches alike are bursting at the seams to play in the double header with Dragons coach Kingsley Jones claiming there is a 'real buzz' about the event.
WRU TV went behind the scenes when the four regions got together to test their skill set for the BBC's Scrum V Live rugby show, at the WRU National Centre of Excellene in the build up to Judgement Day V. Blues' Matthew Morgan was one of the stars of the show while the Dragons' Cory Hill proved a surprise package...the full set of results will be revealed on tv screens on matchday
Wales assistant coach Richie Pugh is confident his side can cause a few headaches in the Hong Kong Sevens this weekend. In a tough group, Wales kick off their campaign against New Zealand on Friday before playing Japan and Fiji, who are chasing their third consecutive Hong Kong title, on Saturday.
Bedwas had to overcome a stubborn Carmarthen Quins side before winning the Foster's Challenge Cup final in Bridgend with a 23-18 victory. Bedwas captain Nicky Griffiths pays tribute to his side who have claimed the club's first piece of silverware in the modern era.
Team coach Brett Davey is aiming to keep his unbeaten run in cup finals at Principality Stadium intact when his side take on Amman United in the WRU Bowl final, after he guided Caerphilly to a 20-14 win against Cilfynydd in the semi-finals.
Penallta are hoping to go one step further than last season when falling to Bedlinog in the WRU Plate Final. After a titanic struggle against Nant Conwy, they have given themselves a great chance, after a hard fought 18-13 semi-final victory.