Marist Brothers and Nasinu Secondary have advanced into the semifinal stages of the Southern Zone Secondary Schools rugby competition.

The students from Flagstaff thrashed Montfort Boys Town in the under 19 quarterfinals today by 53 points to 3.

They will face Ratu Sukuna Memorial School in the semifinal next week, after RSMS defeated Lami High by 19 points to 8.

Nasinu Secondary are also through to the semifinal after their 51 points to 8 victory over Laucala Bay Secondary.

The last quarterfinal in the Under 19 division, Suva Grammar beat John Wesley College 37-0.

Meanwhile, in West Zone Two competition, Ratu Navula College is on track to defend their under 19 title.

Today in the quarterfinal, they beat Ba Provincial 37-10.

Nadi College also qualified for the semifinal after beating Natabua 29-11.

Nadroga/Navosa defeated Nadi Muslim 8-0 and Lomawai beat Lautoka Central by 43 points to 11 to reach the last four.

The Secondary Schools Zones semifinals will be played next week.