
Harris took gold in the women’s 100m hurdles in a time of 14.08 seconds.
The Plymouth athlete came through strongly in the second half of the race to overtake England South athlete Mallory Cluley, who had made a storming start. Both athletes are ranked in the UK’s top five for the under-20 sprint hurdles.
The Welsh International saw England Midlands, England South, England North, Wales, Scotland, North Ireland, Guernsey and Welsh Students compete against each other in 35 events at under-20 level.
Cornwall’s Grace Brock, who recently competed at the European Under-20 Championships in Sweden, was among the other winners on the night.
Harris also recently won a silver medal at the English Schools’ Track & Field Championships in Birmingham.
