The 2025 Diamond League series will begin in Xiamen on April 26, organisers said Wednesday, in a season in which it faces a challenge from a lucrative new US format.
Diamond League organisers have already raised the prize money on offer for next season, partly in response to the purses announced by the four-meeting Grand Slam Track series backed by Olympic legend Michael Johnson.
Johnson has promised to bring together "the best of the best" in head-to-head clashes and Grand Slam Track has already signed up a number of champions from the Paris Olympics including women's 400m hurdles winner Sydney McLaughlin-Levrone.
The 15-meeting Diamond League has increased its prize money to $9.24 million in 2025, while Grand Slam Track says it will have a prize fund of $12.6 million.
The Diamond League season culminates in a two-day final in Zurich on August 27-28.
2025 Diamond League calendar
April 26: Xiamen
May 3: Shanghai/Suzhou
May 16: Doha
May 25: Rabat
June 6: Rome
June 12: Oslo
June 15: Stockholm
June 20: Paris
July 5: Eugene
July 11: Monaco
July 19: London
August 16: Silesia
August 20: Lausanne
August 22: Brussels
August 27-28: Zurich (final)