"Our aim is to get a team into the First XV competition next year. We know it's a lot more competitive and we won't get the opportunity to thrash teams by 100 points, which actually isn't good for either team," Horne says.
"We are building that depth so we can have a bigger squad for a 15-a-side team. We want to play against the best. The girls have been playing some amazing rugby, but we want to be playing decent opposition every week."
The MRGS boys' First XV plays in the 1B grade, and is now in the Plate section, but they too have ambitions for next season and beyond.
The girls' game has grown in the last 2-3 seasons to the point where the school fields two teams, including an Under 15 7-a-side group, which is also showing winning form.
Entry to the First XV grade is open, but the hope is that MRGS will have the size and skill, if not the experience, to compete with the likes of Southern Cross and Aorere.
MRGS old boy Tillan Kapsin coaches the 10-a-side girls, and they respond well to his 3-4 trainings a week. His daughter Summer Kapsin, who plays in the forwards, captained the Auckland Under 15s, and is in the academy, as is MRGS team captain and Year 10 student Lovely Pulotu. Tiana Raftstrand-Smith, a niece of Black Ferns and NZ sevens wing Portia Woodman, is another of the six girls to make the Auckland Under 15s, where they gained valuable exposure to the 15s code.
The MRGS 10s girls play Edgewater on Monday night. They are already guaranteed a top four berth, but would love nothing more than to go one better than their runners-up effort of 2015. Then they can focus on those scrums and lineouts in the off-season before hopefully taking on the top First XVs in Auckland.