Trafford sprinter Ellie Edwards, 18, set lifetime bests for both 100m and 200m in the Youth Development League in Doncaster.
Edwards, who won gold at the 2013 Maccabiah Games in Israel, placed second in both events, in 12.5 and 25.7 respectively.
Maayan Radus, 10, and Jack Bloom, 14, also achieved personal bests while earning useful points for Shaftesbury Barnet Harriers in the Eastern Young Athletes’ League at Braintree.
Radus placed second in the ‘A’ 1500m in 5:25.1 while Bloom won the 800m ‘B’ event in 2:17.1.
Anna Barnett, 16, tossed the discus 31.11m for victory in the Youth Development League at Lee Valley.
Rachel Ayrton achieved a season’s best 800m of 2:34.69 in winning the ‘B’ event in the Youth Development League at Reading.
Nathaniel Lane, who is a solicitor and Cardiff Reform Synagogue member, recorded 16:30 for a 21-second victory in the Cardiff 5K park-run.