Records tumbled as county athletes impressed at the Leicestershire & Rutland AA and Warwickshire AA Two Counties Championships at Saffron Lane Stadium.
Ben Dijkstra's winning performance in the under-15 boys' 1,500m saw him smash a record that had stood for 43 years.
The Leicester Coritanian's time of 4min 12.19sec beat previous record holder Richard Callan's 4.15.3 set back in 1970.
Dijkstra's trainer Alan Maddocks contacted Callan in advance of the race, and the former Coritanian was in attendance to see the transfer of the record to a new generation.
Ivan Tapper broke the county record for the under-15 boys' javelin that has stood since 1971.
The Charnwood athlete threw 48 metres dead to smash the previous record of 44.76.
Harriet Cooper romped to victory in the under-15 girls' 200m. The Saffron AC youngster's personal best of 25.74sec broke the 33-year-old record of 25.8 set in 1980 by Sarah Clarke.
Cooper's time, beating her previous best of 26.3, is now ranked as the fastest for her age in the East Midlands and ninth in the UK.
Cooper said: "I'm delighted, it's always been my aim to get into English National Schools and now, hopefully, I will."
Louise Oliver left the previous masters women's javelin throw in tatters as her throw of 28.65m smashed the previous distance of 15.64 set by fellow Charnwood athlete Elaine Mee in 1994.
The ever-impressive Jasmine Nicholls, of Leicester Walking Club, set a new record for the under-20 women 3km walk.
Her time of 15min 8.55sec broke Fiona McGorum's run of 15.28 – set in 2006 – by almost 20 seconds.
In the under-20 women's hammer, Coritanian's Sally Preston set a new county record of 41.44m, beating the previous distance by 6.65m, while Alistair Finlay and Ethan Walsh both improved on the records they set at last year's championships.
Finlay, who runs for Coritanian, ran a 38.98sec in the under-15 boys' 300m final, improving on the 43.7 he set last time around.
Walsh went 0.4m higher in the under-17 men's pole vault. His record height of 4.0m improved on last year's 3.6m.
For full results go to:
www.powerof10.info/results
