James Loxton scored five tries - taking his tally to eight in two British & Irish Cup games - as Cardiff racked up a half century in their 51-20 win at Birmingham & Solihull Bees in the British and Irish Cup.
The Welshmen look favourites reach the knockout stages from their pool, while Ayr picked up their first win in the competition with a 28-13 win over Rotherham Titans, with Frazier Climo slotting six penalties. The game between Pontypridd and Doncaster Knights was postponed.
The Irish representatives in the competition have continued their country's glittering 2009 form with an unbeaten start in the new competition.
Leinster and Munster top their respective pools after two rounds of the competition, while the Ravens are only kept from the top spot of Pool C by London Welsh's superior points difference.
With only the group winners from the round-robin, five game pool stage qualifying for the semi-finals in April, competition is becoming fierce.
Leinster followed up their opening day win over Plymouth with a second narrow victory as Shaun Berne's four penalties secured a 12-10 defeat of Cornish Pirates in Pool A.
Newport and Plymouth Albion played out a 3-3 draw, which keeps the Welsh side unbeaten and in contention at the top.
Nottingham kept it tight at the top of Pool B as late tries from Tim Usasz and Tim Streather secured a 14-3 win over Neath, their second win of the competition.
Dave Kilcoyne, Danny Barnes and Ronan O'Mahony all scored tries as Munster maintained their 100 per cent record with an 18-6 win over Bristol.
London Welsh lead the way in Pool C after Tom Brown and Paul Sampson each scored a double in a comprehensive 36-7 win at Aberavon.
Bedford Blues secured their first win with a 36-24 win over Llanelli.
Sam Cross and Luke Treharne have been named as co-captains of the Wales Sevens side as head coach Gareth Williams names his 12-man squad to play in the first leg of the HSBC World Series in Dubai next weekend.
Bedwas head coach Steve Law and players Nicky Griffiths and Alun Rees extol the virtues of the close knit club as they prepare to host third place RGC 1404 - who are one place head of them on the Principality Premiership points table - on Saturday.
Many of the Wales squad have said Diolch (thank you) to someone who played an important part in their early playing days by nominating them to be invited to the Wales v South Africa match. One person, Gowerton Comprehensive geography teacher Mr Dean Mason was nominated by two of his former pupils, Dan Biggar and Sam Davies.
The second WRU disability rugby pilot has been delivered, this time in Caerphilly schools, culminating in a festival at the Caerphilly Centre of Sporting Excellence, Ystrad Mynach tomorrow. Plans are in place to set up a Disability Rugby Club in Newbridge to provide long-term playing opportunities.
WRU TV: Hear from inside the Wales camp as Neil Jenkins discusses this weekend's clash with South Africa and how the squad are looking to put in a strong performance to round of the 2016 Under Armour Series