Overview
- Alison Dos Santos ran 45.80 at the Zurich Diamond League on Aug. 27 to break Karsten Warholm’s 45.94 men's 400m hurdles world record and beat Warholm into second place.
- Masai Russell followed less than an hour later with a 12.09 in the women's 100m hurdles to lower Tobi Amusan’s 12.12 world record, producing the second world record of the same meeting.
- Switzerland’s Audrey Werro clocked 1:53.70 to win the 800m, the third‑fastest time ever and a new national and meet best that moves her firmly into contention for the long‑standing 1:53.28 world mark.
- Julien Alfred set a Saint Lucia 100m record of 10.70 to edge Melissa Jefferson‑Wooden by photo finish, while Armand Duplantis won the pole vault at 6.25m after both vaulters attempted 6.32m.
- The Zurich results change late‑season hierarchies by confirming recent form, handing Dos Santos and Russell immediate momentum and prize bonuses, and tightening rivalries and selection expectations ahead of the season’s final meets and global championships.