EILIDH CHILD ran her fastest 400 metres relay split to give Britain a lead they never surrendered last night.

Her time of 51.7 seconds out of the blocks compared favourably with the 51.0 of Olympic silver medallist Christine Ohuruogu from a rolling start on the anchor leg.

"I am really proud of the girls," said Ohuruogu. "It made my job so much easier. They put me in a really good position. It's really good for future relays with the youngsters coming through."

Nineteen-year-old Scot Kirsten McAslan was in the squad, and warmed up with them, but was not called on.

Child, who will face her British rival Perri Shakes-Drayton in the Diamond League at Birmingham on Sunday, is intent on the World Championships in Moscow. "I'm not saying I am going to medal, but there's no reason why I can't be in contention."

Her Scottish hurdles record on Saturday "was the kind of run that was in me last year, but I didn't deliver. I think I should be consistent around that time, and come the worlds, step up again".

Dave Bishop ran a season's best for seventh in the 3000m (8.06.18), but was frustrated in a tactical race won in 8:05.31. "When it came to the kick finish, I was feeling good, and with a lap to go thought I could win it, but with 200m to go my legs just started to tighten up," he said. "I'm not sure why. I'll have to look at what I've done this last week – perhaps too much, or maybe not enough. I'm hoping for a Diamond League place in the 1500m next Sunday. I want to get 3:35. It's a big ask, but that's the world qualifying."

Mark Dry, sixth in the last Commonwealth Games, matched his 11th place ranking in the hammer, but 68.30m was "massively frustrating". It's his poorest in 10 contests this year, while his best (74.46m) would have placed fifth. Dry changed coach in February, and his technique is being rebuilt. "I have to fix the issues if I want to become an 80-metre thrower, which I believe I can be."

Lennie Waite, a late replacement in the steeplechase, set a season's best, fifth in 9.56.19, her second Commonwealth qualifying. "I'm really pleased to get it," said Waite.