Full Breakdown
Two Hurdle World Records Fall in One Night at Zurich’s Diamond League
8/28/2026, 9:35:39 PM
Record-Breaking Performances
On August 27 2026 the Weltklasse Zürich meeting produced two historic world-record marks within a 40-minute span. Brazil’s Alison dos Santos ran the men’s 400 m hurdles in 45.80 seconds, shaving 0.14 seconds off Karsten Warholm’s previous record of 45.94 seconds set at the Tokyo Olympics. Six minutes later, the United States’ Masai Russell lowered the women’s 100 m hurdles record to 12.09 seconds, improving Tobi Amusan’s 12.12 seconds from the 2022 World Championships by three hundredths. Both athletes received US $80,000 prize checks for their achievements.
Background & Context
The 2026 Diamond League season had already featured fast performances, with Russell posting 12.14 seconds in Xiamen (May 2026) and dos Santos improving the season’s world lead to 46.43 seconds in Chorzów only four days earlier. The Letzigrund Stadium’s sell-out crowd of 25,000 and “still, balmy” conditions were cited as factors that helped the athletes “run faster” and “feel the track was hot.”
Both athletes entered the meet with personal narratives of near-misses: dos Santos recalled the pain of winning bronze in Tokyo while the world record still belonged to Warholm, and Russell described years of “knocking on the door” of the record, repeatedly running sub-12.20 seconds.
Data & Statistics
| Event | New World Record | Previous Record | Record-breaker | Runner-up | Prize |
|---|---|---|---|---|---|
| Men’s 400 m hurdles | 45.80 s | 45.94 s (Warholm, 2021) | Alison dos Santos (BRA) | Karsten Warholm (NOR) 46.69 s | US $80,000 |
| Women’s 100 m hurdles | 12.09 s | 12.12 s (Amusan, 2022) | Masai Russell (USA) | Tobi Amusan (NGA) 12.23 s | US $80,000 |
Additional highlights included a world-leading 1:41.76 in the men’s 800 m by Emmanuel Wanyonyi and a 6.25 m pole-vault win by Armand “Mondo” Duplantis.
Official Statements & Responses
Warholm, the displaced record-holder, said, “I have got to get back to the drawing board and do something else,” acknowledging the need to reassess his approach.
Russell, reflecting on her own run, noted, “When I saw 12.09 … I just got so emotional,” and added that the earlier men’s record…
Why It Matters
The back-to-back records illustrate a rare convergence of peak athlete form, optimal venue conditions, and high-stakes competition. Breaking a 400 m hurdles record that had stood since the Tokyo Games signals a new era of sub-46-second performances, while the women’s 100 m hurdles record moves the event closer to the long-sought sub-12-second barrier. Both achievements raise expectations for the upcoming Diamond League Final and the World Athletics Ultimate Championships later in the season.
What’s Next
- Diamond League Final, Brussels: Russell and dos Santos are slated to compete, aiming to extend their dominance.
- World Athletics Ultimate Championships, Budapest: The new record-holders will join a stacked field that includes Warholm, Rai Benjamin, and other top hurdlers.
The Zurich night will be remembered as a “crazy” showcase of hurdling excellence, setting a high bar for the remainder of the 2026 season.
