The first two meetings take place in China, and reigning Olympic and world champion Duplantis will begin his bid for a fourth successive title by competing in both Xiamen and Suzhou, with Americans Christopher Nilsen, Sam Kendricks and KC Lightfoot for company.
Meanwhile, two-time Olympic champion Kipyegon, who has not lost over 1500m since 2021, faces a tough opening test against 10 women who have run below four minutes – including world 10,000m champion Gudaf Tsegay.
World 100m champion Richardson, 24, begins her campaign by racing over 200m in Xiamen, before she is joined by Jamaica’s world 200m gold medallist Shericka Jackson and Britain’s Daryll Neita in Suzhou one week later.
World indoor 60m champion Christian Coleman begin his Diamond Trophy defence in the 100m by taking on 2022 world champion Fred Kerley and Jamaican sprinters Yohan Blake and Ackeem Blake.
Looking further ahead, British world indoor 800m medallist Jemma Reekie will test herself against Moraa in Doha in May as she looks to put herself in contention at Paris 2024.
Also in Doha, recently crowned world indoor pole vault champion Molly Caudery is set to go up against joint world champions Katie Moon and Nina Kennedy.
