Tonga education officials, with the push from Prime Minister and Minister for Education, Akilisi Pohiva, introduced a new system of measurement this year amid concerns over the performance of students.
But Radio Tonga reports Tonga High School officials saying that under the new system, called Raw Marks, they are cannot calculate who should be dux this year.
The school began using the new system halfway through the year.
The failure to announce a dux has reportedly caused widespread disappointment among people associated with the school.