Sarah Sjöström Returns: Previewing the 10th Anniversary Swim Open in Stockholm

Stockholm is preparing for a weekend of high-stakes racing as the city hosts the Swim Open Stockholm 2026. Starting tomorrow, Thursday, April 9, the international swimming community descends on Eriksdalsbadet for an event that marks a decade of competition in the Swedish capital.

While the meet celebrates its 10th edition, the primary narrative is not the anniversary, but the return of a legend. Sarah Sjöström, one of the most decorated swimmers in history, is set to create her competitive comeback following her pregnancy. For fans and analysts alike, Sjöström’s presence transforms this meet from a standard international competition into a must-watch event.

The Return of Sarah Sjöström

The anticipation surrounding Sjöström has been building for weeks. Competition general Dennis Fredriksson described the news of her participation as a “real joy,” noting that her decision to return specifically for the Swim Open has significantly heightened the event’s profile.

Sjöström is scheduled to compete in the 50-meter freestyle on Saturday, April 11. The focus will be on how she has transitioned back into elite competition and whether her trademark explosive speed remains intact after her hiatus. In a sport where hundredths of a second separate the podium from the pack, the swimming world will be watching closely to see if she can challenge the current pace of the field.

A Decade of Speed at Eriksdalsbadet

The Swim Open first launched in 2016. Though the event has been a staple of the Stockholm sports calendar, its journey to the 10th edition was not linear. The 2020 competitions were canceled due to the global pandemic, making this year’s meet the tenth time the event has actually been staged.

The venue, Eriksdalsbadet, has already proven to be a “fast” pool capable of producing historic times. Just one year ago, Germany’s Lukas Märtens electrified the crowd by setting the first-ever world record at the event. Märtens clocked 3:39.96 in the 400-meter freestyle final, shaving eleven hundredths of a second off the previous world record held by fellow German Paul Biedermann since the 2009 World Championships—a record established during the era of “super-suits.”

With that precedent set, the question hanging over this year’s anniversary is whether the 2026 field can produce another world-record performance to celebrate the milestone.

Event Scale and Logistics

The 2026 Swim Open is an expansive undertaking, reflecting the growth of the event over the last ten years. Organizers expect over 800 swimmers representing approximately 30 different countries to compete over the four-day window.

For those following the event, the schedule is packed with international talent, but the concentration of interest remains centered on the sprint events and the potential for record-breaking times that have become a hallmark of the Stockholm meet.

What to Watch

Beyond the Sjöström comeback, the meet serves as a critical barometer for international form. The sheer volume of athletes from 30 different countries ensures a deep field across multiple disciplines. Observers should look for whether the 400-meter freestyle—the site of Märtens’ historic run—sees further movement in the standings, or if the sprint distances will dominate the headlines this year.

The combination of a celebratory anniversary, a massive international field and the return of a global icon makes this edition of the Swim Open one of the most anticipated swimming events of the spring season.

The competition officially begins tomorrow, April 9. Stay tuned for updates and results as the action unfolds at Eriksdalsbadet.

Do you think Sarah Sjöström will reclaim her spot at the top of the podium in her first outing? Let us know in the comments.