Hannah Ashton (13) and Hamish Mears (12) broke five school records between them at the school's athletics day last month.
Hannah broke the records for under-13 high-jump and 100m, while Hamish broke the records for under-13 100m, shotput and discus.
It was a particularly special day for Hannah, being her birthday.
Sports co-ordinator Graeme Egan said it was ''great to see'' the pupils break record after record and it was a good sign ahead of the championship.