"The Auckland sides are a lot bigger than any of my boys and although they're hanging in there and never give up, it's hard for them to beat these teams," he said.
The side has entered the developing team competition for the first time this year and Gray said they're learning how to cope with the bigger sides.
"They're learning quickly and we're aiming to win at least one of our crossover games against teams that will be a bit more like us," he said.
The team started with a 28-4 defeat by St John's College on Monday and yesterday went down to Howick College 24-6.
Kamo take on Central Southland College tomorrow and are expecting a close encounter. The team have coped well with the injuries they have sustained - especially after losing their captain, Chris Philips, in their first game.
Whangarei Boys' High, like Kamo, are finding it tough going in the premier schools competition. They started with a 30-4 defeat by St Paul's College and then went down 26-10 to Manurewa High School on Tuesday.
The tournament continues today with the final matches tomorrow.