Kerry Harty is just back from two weeks of altitude training
Kerry Harty advanced her claims for Commonwealth Games selection by taking 14 seconds off the Northern Ireland women's 5,000m record on Saturday.
The Newcastle athlete clocked 16:04.86 to better Sharon Hatch's eight-year-old mark when taking fourth place at the BMC meeting in Manchester.
In Germany, James McIlroy clocked a season's best 1:49.09 for 800m at a meeting in Dessau to take second place.
At the same meeting, Amy Foster clocked 11.8 for 100m.
The North Down athlete's season's best for the 100m is 11.6.
Another North Down athlete Mark Patterson could challenge McIlroy over 800m at the Northern Ireland Championships in Antrim on 12 June.
Patterson improved his personal best to 1:50.92 at the BMC meeting while his club-mate Niall Robinson produced a season's best of 1:54.54.
Both athletes have already achieved the World Junior Championship standard for this summer's event in Canada.
QUB student Gavin Massingham clocked 3:47 for 1500m in Manchester while Waterford man David McCarthy, who now represents City of Derry, ran a personal best of 3:43.68 for the metric mile at the BMC meeting.
However, best Irish performance of the weekend was Rose Anne Galligan's 2:02.39 for 800m as she won the A race in Manchester.
Galligan's new personal best, which places her sixth on the Irish all-time list, is a qualifying time for this summer's European Championships in Barcelona.
Harty, meanwhile, has returned to action in recent weeks after being troubled by injury since last July.
The new Northern Ireland 5,000m record holder recently spent two weeks at high altitude in France and she will compete over 1500m in Belgium next weekend.