Athletes needed to achieve a top-two finish, and have met the World Athletics entry standard, to be assured of a place in the squad, to be announced on 27 August.
Olympic 1500m medallist Georgia Hunter Bell won the 800m final to secure a spot in Tokyo, where she could face training partner and Olympic champion Keely Hodgkinson.
Max Burgin claimed a dominant win in the men’s 800m, while title favourites Charlie Dobson and Amber Anning earned 400m golds.
World 1500m champion Josh Kerr, already assured of a place in the squad in that event, had time to wave to the crowd in the closing stages of a comfortable 5,000m win.
High jumper Morgan Lake and long jumper Jazmin Sawyers also secured their Tokyo places on the final day of the two-day meet.
More to follow.
