Note: Single-source report; awaiting corroboration.
The Weltklasse Zürich will host the final Wanda Diamond League meeting before the series final in Brussels. The event starts with the women's pole vault city event at Zurich Main Station, followed by the main competition at Letzigrund Stadium. Athletes will compete for crucial points to qualify for the Diamond League Final, where the winner earns entry to the World Athletics Ultimate Championship in Budapest.
In the women's 800m, Swiss athlete Audrey Werro, 2025 Diamond League champion with four wins this season and top times of 1:53.98 in Stockholm and 1:53.80 in Paris, will face Dutch world 400m hurdles champion Femke Broeders-Bol and Great Britain's world silver medallist Georgia Hunter Bell. Other contenders include Jess Hull, Sarah Billings, and 18-year-old Saida Tsehaye, who recently finished third behind Werro and Broeders-Bol.
The men's 1500m will feature USA’s Ethan Strand, who recently defeated world U20 record-holder Phanuel Koech, Olympic champion Cole Hocker, and two-time Olympic champion Jakob Ingebrigtsen. These rivals are expected to compete again in Zürich.
Key rivalries include Brazil’s 2022 world champion Alison dos Santos and Norway’s world record-holder Karsten Warholm in the 400m hurdles. In the women's 100m, world champion Melissa Jefferson-Wooden will face Olympic champion Julien Alfred, 2023 world champion Sha'Carri Richardson, silver medallist Tina Clayton, and world 200m silver medallist Amy Hunt. USA’s Olympic champion Masai Russell looks to maintain her unbeaten streak in the 100m hurdles, highlighted by a 12.14 performance earlier this year.