John McGlashan College had its first win of the season in the Otago Premier Schools competition on Saturday.
It beat South Otago 57-7. It was the first loss for South Otago.
In other games, St Kevin's College had its first win of the season with a narrow 26-22 win over Wakatipu, which had its second close loss of the year.
Southland Boys' High School beat Mount Aspiring College 50-12 while Dunstan High had a big 62-0 victory over the combined co-education schools side.
Otago Boys' High School second XV beat Waitaki Boys' High School 24-12.
Otago Boys' High School and King's High School will meet at Littlebourne on Tuesday in an interschool match.