Zurich witnessed an extraordinary night of track and field history on August 27, 2026, as world records fell on the track and a historic pole vault duel captivated a packed Letzigrund stadium during the Weltklasse Diamond League meeting. Brazil’s Alison dos Santos and America’s Masai Russell etched their names into the record books with blistering performances in their respective hurdles events, while Sweden’s Armand Duplantis and Greece’s Emmanouil Karalis pushed the boundaries of modern pole vaulting.
Weather conditions at the venue proved optimal for fast times and high marks, featuring a mild temperature hovering around twenty degrees Celsius and virtually zero wind across the track and field events.
Alison Dos Santos Shocks Karsten Warholm in 400m Hurdles World Record
The night’s first major shock came early in the programme when Alison dos Santos electrified the crowd in the men’s 400m hurdles. Running from the gun, the 26-year-old Brazilian charged through the layout to clock a world-record time of 45.80 seconds, according to track reports.
Dos Santos shaved 14 hundredths of a second off the previous global benchmark of 45.94 seconds, which Norway’s Karsten Warholm had set during the 2021 Tokyo Olympic final. Warholm, a triple world champion and the 2021 Olympic champion, finished second on the night in 46.69 seconds, playing a spectator’s role as dos Santos dictated a frantic pace from the start.
Following the race, dos Santos shared his disbelief with reporters. “The crowd and the ambiance were perfect,” dos Santos said. “I think that this evening was extraordinary. I hope that Brazil stopped to follow that as much as the people here, in the stadium. I have no words to explain what happened, other than that I just broke the world record.”
Masai Russell Smashes 100m Hurdles Record
Roughly forty minutes after dos Santos stunned the crowd, the stadium erupted again as Masai Russell claimed the women’s 100m hurdles world record. The American standout navigated the straightaway in 12.09 seconds with a zero wind reading, lowering the previous world mark by 3 hundredths of a second.

The previous record had stood since the final of the 2022 World Championships in Eugene, Oregon, where Nigeria’s Tobi Amusan captured gold. “I’ve dreamed of this moment for so long,” Russell said after the race.
Both world-record performances in Zurich occurred with the previous record-holders looking on from the field, setting a standard of excellence that carried over into the vertical jumps.
Armand Duplantis and Emmanouil Karalis Make Pole Vault History
The men’s pole vault delivered an unprecedented exhibition as Armand Duplantis and Emmanouil Karalis became the first two athletes in history to clear 6.20 meters or higher in the same competition.

Karalis cleared 6.20 meters on his first attempt, not only improving his personal best by three centimeters but also placing immense pressure on Duplantis. After passing at 6.20, Duplantis cleared 6.25 meters on his first try to reclaim the lead. Both athletes subsequently attacked a bar set at 6.32 meters—one centimeter higher than the world record Duplantis set indoors in Uppsala on March 12, 2026—but both men missed all three attempts.
The competition concluded with Duplantis taking the victory at 6.25 meters and Karalis finishing second at 6.20 meters.
Looking Ahead to the Diamond League Final
The historic Weltklasse meeting sets the stage for the final stretch of the international track and field season. Athletes will next turn their focus toward the Diamond League final scheduled in Brussels, followed by the Ultimate championships in Budapest.
Worth a look