Lia Radus,12, broke the Shaftesbury Barnet under-13 club record on her way to winning the 1,500m in the Eastern Young Athletes League Plate final in Ipswich.
Her time of 4:59.5 places her 12th in the UK U13 rankings.
Tackling the same distance in the Boys under-13 division, fellow Shaftesbury athletes Judah Yawitch,11, and Matti Harris recorded 5:04.1 and 5:14.7 respectively.
Competing midweek at the Watford Open Graded Meeting, Radus, Yawitch and Jack Bloom, 13, each improved their PBs for 800m. Their respective times were 2:30.34, 2:26.36 and 2:23.10.
Sophie Dowson recorded a pole vault clearance of 3.20m for eighth place at the England Athletics under-17 Championships in Bedford.
Roger Bruck, 75, brought his season to an end with age-group victories in the high jump (1.15m) and long jump (3.46m) at the Southern Counties Veterans AC Final in Ashford.