Omagh's victory aids Ballyclare's Cup prospects
Omagh Academy 7 Cambridge House 0
Cambridge House were undefeated after the first two games in the Danske Bank Schools' Cup Division C, but defeat to Omagh Academy throws their place in the last-16 into jeopardy.
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It means Ballyclare High now have the opportunity of automatic qualification if they gain a bonus point against Lurgan College in the final tie on Saturday.
Should they just win and finish on 10 points then the High School will still go forward as one of the four best second-placed teams.
The Ballymena team will win the division by virtue of their 17-16 success against their main rivals. Cambridge House now have 10 points, Ballyclare and Omagh six and Lurgan two.
In Omagh, the home team dictated the play for the first 15 minutes and then had to defend for most of the remainder.
The only score in the tie came after 14 minutes when Ulster Schools' prop David Braden picked up and dived over after centres Joshua Kyle and Harry Stevenson had made ground down the middle. Out-half Jake Reid added the conversion.
Omagh coach Ross Hunter knew his team were destined for the Schools' Bowl anyway but was pleased with his team's exceptional defending.
"We were under pressure for long periods but brilliant line-out play by second row Matthew Keys and strong tackling by flanker Scott Wilson and Joshua Kyle in the centre saved the day," he said.
Apart from the six seeded teams, Friends' School are the only other side to qualify so far, with the other nine places to be decided at the weekend.