The band and kapa haka group of 24 have been performing in the city over the past week, dubbed New Zealand week, to coincide with the US-NZ Pacific Partnership Forum, a biennial business-led meeting.
The rugby field was an American football field near the Galludet University for the Deaf.
The hearing team is coached by Tal Bayer, who said he was introduced to rugby when his father, who was in the military, was based in Britain.
He brought his team out from the Perry Street School, in the town centre, where he is sports director and has coached rugby since 1999.
It was a small school "but we continue to thrive and to kick butt".
Mr Bayer pointed to greater freedoms for individuals in rugby.
"Once the game starts, kids make decisions themselves," he said.
"I think that is something that is lost with a lot of youth sports today. Kids are no longer in control."
Rugby is new to the deaf school and it is coached by Mark Burke, a friend of Mr Bayer's.