By Owen Morgan
At the end of a thrilling 5,000m B race where Perrin swapped the lead with Dominic Nolan several times, the Menai Track and Field athlete broke the tape in 13:53.03.
Perrin’s time broke Adrian Leek’s previous record of 14:07.2 set in Aldershot way back in 1977.
Top brake through from osian Perrin who is first in the u20 5000m trial in Watford in 13:53.20- a welsh junior record..
— Ian Hodge (@IanHodge7) June 12, 2021
The performance is the fastest by a British under-20 athlete this year and the 10th fastest ever by a British junior.
Perrin’s brilliant run also earned him the qualifying standard for next month’s European Under-20 Championships in Estonia.
The Welsh Under-17 cross country champion already held the Welsh under-17 3,000m record set in Swansea two years ago.
There were a number of other personal best performances by Welsh athletes in Watford on Saturday.
Cardiff’s Cari Hughes finished fifth in the women’s 1500m A race celebrating a new PB of 4:16.14.
Young Carmarthen Harriers team mates Iestyn Williams and Dafydd Jones claimed new PBs. Williams clocked a new best of 1:52.84 to win the 800m F race, while Jones registered a new best of 14:36.07 in the 5,000m B race.
A high quality 400m saw Swansea Harrier Joe Brier continue his good form to finish third in 46.32, while Cardiff’s Owen Smith was fourth in a season’s best 46.37.