"We did a race in Kawerau on the slalom course and some of the international teams were there,"said Roozendaal.
"We came second behind Brazil, but beat Japan and they are the current world champions, as well as Chile and Canada. It was good to get a gauge of where we are. Brazil is right up there and are former world champions.
"The U19 girls raced and beat the U19 Brazilian team, so that was good to see as well."
The slalom, which is the most challenging and best race to watch for spectators, will be held on the Tarawera River in Kawerau on the next two Saturdays.
Two 10m big screens will be erected riverside for those who fail to get a good viewing spot.
The U19 boys team is mainly based from Tauranga Boys' College under the watchful eye of teacher Rob Sperling.
The event was officially opened yesterday with a traditional powhiri at Waiariki Institute and a splash of colour at Tarawera High School in Kawerau. The youth and junior categories celebrated the opening of their event - which takes place on courses on the Tarawera river at Kawerau and on the Rangitaiki river in Murapara - with a colourful parade of countries through Tarawera High School, which has got behind the event with a massive "Adopt a Nation" programme.