Defending champions South Africa destroyed the USA while hosts France lost heavily to England on Day One of the 2013 Junior World Championship.
The Baby Boks won 97-0 to set a new benchmark for the largest winning margin in JWC history. They also equaled the record for the most tries in a match by a team (16). Wing Seabelo Senatla scored four times to equal the JWC record for most tries scored by an individual in a match.
New Zealand started their campaign in the best possible way, with a comprehensive win 59-6 over Pacific neighbours Fiji. New Zealand ran in nine tries against an ill-disciplined Fijian outfit that ended the game with only 13 players on the park.
Pool A: at Stade Henri Desgrange, La Roche-sur-Yon
France 6-30 England
South Africa 97-0 USA
Pool B: at Stade de la Rabine, Vannes
Ireland 19-15 Australia
New Zealand 59-6 Fiji
Pool C: at Stade Pascal Laporte, Nantes
Wales 42-3 Samoa
Argentina 44-13 Scotland
South Africa coach Dawie Theron was understandably pleased with his team's performance.
"It was good to get the first match out of the way. However, I cautioned the guys that this is an extremely tough competition and that we will keep our feet firmly on the ground," said Theron.
"There are still two tough pools matches waiting for us against England and home team France. Our backs did the job for us but they could only do so because our forwards laid the platform with some really good, hard work up front."
New Zealand Head Coach Chris Boyd was encouraged by his team's first up effort.
"It's very pleasing to see the way the team approached today's game. We knew it was going to be a physical challenge, and our players were aggressive across the park and executed really well," said Boyd.
England captain Jack Clifford was happy with his team's effort.
"We played really well, but there is still a lot to work on. We will reassess and then hit the training park again, before preparing for South Africa," he said.
"We had the majority of the ball, but they really came out in the second half, and it was only in the last 10 minutes when we really ran away with the game."
Ireland coach Mike Ruddock hailed his team how they stood up against Australia.
"Really physical contest, Australia were much bigger than us, particularly in forwards so we really had to work up front, our scrum technique I thought was excellent as against such big opponents we had to be low and we had to be technically very, very good as an eight and I thought for the majority of game it held up against big men," he said.
Meanwhile, Wales captain Ellis Jenkins said of their win over Samoa: "It was tough, the conditions, it was so warm, we were blowing from the word go, but we could see they were struggling a bit more than we were and we just had to keep piling on the pressure and stick to our guns and that is what we did and it came good at the end for us."