As for his win in Birmingham with a first-round effort of 17.05m, Idowu said: "I just wanted to do the bare minimum. If it took 15.50m to win then I'd be content with that. I just had to guarantee my place on the plane, get a win with whatever distance it took. An easy day at the office. The best will come out in Berlin."
The most impressive performances yesterday were produced by Jessica Ennis, a strong contender for heptathlon gold in Berlin.
The 23-year-old, who missed the Olympics with a fractured ankle, easily won the high jump with a first-time clearance of 1.85m but she went on to clear 1.91m for a season's best.
Ennis later won the 100m hurdles with a time of 12.87sec, a championship record and only 0.07sec outside the British record set back in 1996.
She said: "If things keep going the way they are, then hopefully I can do something in Berlin."
