Dos Santos and Russell Break World Records at Zurich Diamond League

The Zurich Diamond League has a reputation for fast times and fierce competition, drawing elite track and field athletes from around the globe. In August 2026, anticipation was high as reigning champions and new contenders converged on the Swiss city.

Alison dos Santos of Brazil entered the meet as the 2022 world champion in the 400 meter hurdles, while Masai Russell of the United States had been steadily improving in the 100 meter hurdles. Both athletes were recognized for their potential but had yet to claim the ultimate prize: a world record.

On August 27, 2026, Alison dos Santos stunned the crowd of 25,000 in Zurich by running the 400 meter hurdles in 45.80 seconds, according to Notícias ao Minuto and DIE ZEIT. He surpassed the previous world record held by Karsten Warholm, who finished second in the race. Dos Santos celebrated his achievement wrapped in the Brazilian flag, visibly emotional about the significance of his accomplishment.

Shortly after, Masai Russell lined up for the women's 100 meter hurdles. According to BBC Sport and World News CNA, Russell powered through the final stretch and crossed the line in 12.09 seconds, setting a new world record. Her strong finish over the last hurdle was a focal point of coverage, with many outlets noting the technical precision and speed she displayed.

The night was described as 'crazy' by Guardian Sport, not only because of the two world records but also due to other standout performances, including a historic pole vault by Mondo Duplantis. The Zurich meet became the center of attention in the athletics world, with two world records set within less than an hour.

L'Équipe highlighted dos Santos's disbelief at his own achievement, while Russell spoke to her determination to break the 12-second barrier in future competitions. The Hindu noted that the two world records came within a 40-minute window, a rare occurrence in major track events.

Both dos Santos and Russell now hold the world records in their respective hurdles events. Their victories have been widely covered, with praise for their performances and the excitement they brought to the Zurich Diamond League.

The event has solidified their status as top figures in athletics, and their record-breaking runs are likely to influence the sport for years to come.

Attention will now turn to how long these new records will stand and whether dos Santos or Russell can improve on their own marks. Both athletes have expressed motivation to push boundaries even further, especially with upcoming international competitions on the horizon.