Olympic 100m champion Julien Alfred smashed her own national record and world lead to win the 200m in convincing fashion.
The St Lucian was in the lead as she came off the bend, then continued to open up a significant leading margin, crossing the line in a meeting record of 21.71.
Alfred’s training partner, 2019 world champion Dina Asher-Smith, finished strongly to take second in a season’s best of 22.25, just ahead of compatriot Amy Hunt, who set a PB of 22.31 in third.
Earlier in the afternoon, Asher-Smith and Hunt had teamed up to win the women’s 4x100m in a world-leading 41.69.
There were also meeting records from Kenyan middle-distance runners Phanuel Koech and Emmanuel Wanyonyi.
Eighteen-year-old Koech, who has burst on to the international scene this year, ran like a seasoned professional in the men’s 1500m, making his way into the lead on the last lap to win in a UK all-comers’ record of 3:28.82. World champion Josh Kerr was second in a season’s best of 3:29.37.
For a brief moment it looked as though Olympic champion Wanyonyi would be beaten in the men’s 800m. He had led for most of the way, but world champion Marco Arop took command on the final bend.
The Canadian then faded slightly while Wanyonyi responded with a final burst to take the win in a meeting record of 1:42.00. Arop was second with a season’s best of 1:42.22 while Max Burgin was third in a PB of 1:42.37, elevating him to third on the British all-time list.
