Last Updated: 27/07/13 8:04am
Perri Shakes-Drayton (C): Was beaten into second by Zuzana Hejnova (R)
Perri Shakes-Drayton's preparations for the World Championships were given a boost as she set a new personal best in the 400 metres hurdles at the Sainsbury's Anniversary Games.
The 24-year-old Londoner finished second to the dominant Czech Zuzana Hejnova at the Olympic Stadium, but her time of 53.67 seconds was proof she is in the form of her life.
Shakes-Drayton put the pressure on Hejnova, whose time of 53.07 was the fastest in the world this year, with a strong start before holding on to the runner-up spot as she began to fade in the final straight.
The performance also helped put to bed some of the bitter memories the British runner has of her Olympic campaign last year, where she suffered an injury ahead of her semi-final and missed out on the final by a single place.
"I went for it and I have come out with a personal best - roll on the worlds," she said.
She added: "I've forgotten the Olympics, I'm a lot happier to compete here since then. Today I got a PB so I'm happy and now I want to make the final in Moscow. I'll be wanting to bring home some silverware for sure."
Meanwhile, Great Britain's 4x100m women's relay team raced to the fastest time by a British quartet in 12 years to claim an impressive victory.
Britain's women did not even qualify a team for last summer's Games, but Friday's line-up of Dina Asher-Smith, Anyika Onuora, Annabelle Lewis and Ashleigh Nelson won convincingly in 42.69.
Robbie Grabarz, a bronze medallist from London 2012, could only manage joint fourth in the men's high jump with 2.24m, while Marilyn Okoro also came fourth in the women's 800m.
Adam Gemili won the all-British 100m B race, setting a time of 10.16 to edge Harry Aikines-Aryeetey, who beat him to selection for the World Championships.
Several of the Paralympic stars of last summer have returned to the Olympic Stadium in triumph.
Sprinting hero Usain Bolt led the Racers Track Club to 4x100 metres relay victory at the Sainsbury's Anniversary Games.
Jessica Ennis-Hill has cast new doubt on her participation at the forthcoming World Championships in Moscow.
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