Olympic InfrastructureEngineering ExplainerJul 14, 2026, 6:20 AM· 7 min read· #1 of 2 in fitness

LA28 Olympics to Transform SoFi Stadium into Largest-Ever Aquatic Venue

Los Angeles organizers will convert the 101,000-square-foot NFL stadium into a temporary 38,000-seat natatorium, rewriting the blueprint for Olympic infrastructure.

By Factlen Editorial Team

Olympic Organizers 35%Aquatic Sports Advocates 35%Paralympic Community 30%
Olympic Organizers
Focused on financial viability, sustainability, and maximizing attendance without building new permanent structures.
Aquatic Sports Advocates
Thrilled by the unprecedented scale, the 38,000-seat capacity, and the addition of new sprint events elevating the sport's profile.
Paralympic Community
Expressing logistical frustration that the NFL preseason forces the temporary pool to be dismantled, moving Paralympic swimming to a smaller venue.

What's not represented

  • · Local Inglewood residents affected by the extended stadium use
  • · NFL groundskeepers managing the turf restoration

Why this matters

By utilizing existing professional sports arenas instead of building billion-dollar permanent facilities, LA28 is pioneering a financially sustainable model that could save future host cities from crippling infrastructure debt.

Key points

  • LA28 will convert SoFi Stadium into a 38,000-seat natatorium, creating the largest swimming venue in Olympic history.
  • The massive modular pool will cover the entire 101,000-square-foot NFL football field.
  • Swimming events will shift to the second week of the Games to allow the stadium to co-host the Opening Ceremony first.
  • The temporary pool must be dismantled before the NFL preseason, relocating Paralympic swimming events to a separate facility in Long Beach.
  • The IOC approved six new 50-meter sprint events, expanding the LA28 swimming program to a record 41 medal events.
38,000
Projected seating capacity
22,209
Previous attendance record
101,000 sq ft
Football field utilized
41
Swimming medal events

When the Olympic Games return to Los Angeles in 2028, organizers will rely on a radical blueprint: building zero new permanent venues. Instead of constructing billion-dollar facilities that risk becoming abandoned "white elephants," LA28 is leveraging the region's existing sports infrastructure. The crown jewel of this sustainability strategy is SoFi Stadium in Inglewood, California. Normally home to the NFL's Los Angeles Rams and Chargers, the $5.5 billion technological marvel will undergo an unprecedented transformation. For nine days in July 2028, the 101,000-square-foot football field will be converted into a world-class natatorium, becoming the largest swimming venue in the history of the Olympic Games.[2][4]

The scale of the planned aquatic center shatters all previous benchmarks for the sport. By utilizing the massive footprint of SoFi Stadium, organizers anticipate accommodating up to 38,000 spectators for swimming finals. This nearly doubles the current world record for swimming attendance—22,209 fans—which was recently set during the 2024 U.S. Olympic Trials at Lucas Oil Stadium in Indianapolis. The Los Angeles City Council officially approved the venue change, moving the swimming events outside the city limits to Inglewood to capitalize on the stadium's massive capacity and state-of-the-art amenities, including its pioneering 80-million-pixel Infinity Screen suspended above the field.[1][3][5]

The confidence to execute this massive undertaking stems directly from a recent, highly successful proof of concept. Originally, LA28 organizers planned to host swimming in a temporary structure built over Dedeaux Field, the baseball stadium at the University of Southern California, which would have seated roughly 17,000 fans. However, those plans were scrapped after officials witnessed the 2024 U.S. Olympic Swimming Trials. Held inside Lucas Oil Stadium—the indoor home of the NFL's Indianapolis Colts—the event proved that modular pools could be seamlessly integrated into massive professional sports arenas without compromising the competitive environment. The overwhelming success and record-breaking ticket sales in Indianapolis convinced Los Angeles officials to double down and move the event to the even larger SoFi Stadium.[1][3][4]

By utilizing the massive footprint of the NFL stadium, LA28 will shatter previous aquatic attendance records.
By utilizing the massive footprint of the NFL stadium, LA28 will shatter previous aquatic attendance records.

Transforming a professional football field into an Olympic-caliber pool requires a feat of rapid, high-precision engineering. The mechanism relies on modular stainless-steel pool systems. Rather than digging into the stadium floor, engineers construct a raised platform across the entire expanse of the turf. Above this sub-floor, prefabricated stainless-steel panels are bolted together to form the pool walls, which are then sealed with a custom PVC liner and filled with over a million gallons of water. This temporary infrastructure must meet exact Olympic tolerances, featuring advanced gutter systems tuned for wave suppression to ensure a "fast" pool for the athletes.[2]

What remains largely invisible to the spectators is the rigorous environmental and hydrodynamic calibration required to make a temporary stadium pool viable for world records. In a standard indoor natatorium, climate control is highly regulated to manage humidity and air quality. SoFi Stadium, while covered by a massive translucent canopy, is technically an open-air venue with open sides that allow ocean breezes to flow through. Engineers must carefully manage water temperature and air currents to ensure equitable conditions across all lanes. Furthermore, the depth of the temporary pool and the precision of its water-return systems are critical; a pool that is too shallow or lacks proper wave-absorbing gutters will cause turbulence, slowing the swimmers down.[2]

In a standard indoor natatorium, climate control is highly regulated to manage humidity and air quality.

The logistics of the SoFi Stadium conversion have fundamentally altered the traditional Olympic schedule. Historically, swimming dominates the first week of the Games, while track and field takes over the second week. For LA28, this order is reversed. SoFi Stadium is slated to co-host the Olympic Opening Ceremony alongside the historic Los Angeles Memorial Coliseum in an unprecedented dual-venue format. To accommodate the ceremony, organizers will build a temporary, removable stage over the partially constructed swimming pool installation. Once the opening festivities conclude, crews will work around the clock to remove the stage and finalize the aquatic setup.[2][4][6]

Modular stainless-steel pool systems allow engineers to build a world-class aquatic center directly over the football turf.
Modular stainless-steel pool systems allow engineers to build a world-class aquatic center directly over the football turf.

Because of this rapid turnaround, swimming events will take place from July 22 to July 30, 2028, occupying the final week of the Games. The preliminary heats will run for the first eight days, culminating in a massive "Super Saturday" that will feature five swimming finals alongside dozens of other medal events across the city. The final medals of the entire Olympic Games will be awarded in the medley relays on Sunday afternoon, just hours before the Closing Ceremony takes place back at the Coliseum.[6]

The shift to a stadium-scale venue also reflects a broader evolution in aquatic sports presentation. World Aquatics, the international governing body for water sports, has embraced the move, noting that the massive capacity will elevate the sport's global profile. The LA28 Games will also feature an expanded swimming program, with the International Olympic Committee recently approving the addition of six new sprint events: the men's and women's 50-meter backstroke, breaststroke, and butterfly. This brings the total number of swimming medal events to 41, ensuring that the record-breaking crowds at SoFi Stadium will witness more podium moments than at any previous Olympics.[5]

While the modular pool strategy solves the Olympic "white elephant" problem, it introduces unique scheduling constraints, particularly for the Paralympic Games that follow. Because the temporary pools must be completely dismantled and removed from SoFi Stadium in time for the NFL preseason in August, Paralympic swimming cannot be hosted in the same venue. Instead, Paralympic aquatic events will be held at a temporary pool facility in Long Beach, which will also host Olympic water polo. This logistical reality has sparked some debate among advocates who prefer Olympic and Paralympic athletes to share identical venues, though organizers maintain that the NFL calendar makes a prolonged stadium takeover impossible.[4]

SoFi Stadium will more than double the seating capacity of recent Olympic aquatic venues.
SoFi Stadium will more than double the seating capacity of recent Olympic aquatic venues.

The SoFi Stadium project is part of a wider decentralization of aquatic sports for LA28. By separating the disciplines, organizers can match each sport with a facility perfectly suited to its specific competitive demands. While swimming takes over the massive NFL stadium, diving will be hosted at the celebrated Rose Bowl Aquatics Center in Pasadena. Meanwhile, artistic swimming, open water swimming, and water polo will be clustered in Long Beach, creating an intimate, festival-like "neighborhood" atmosphere for fans attending multiple events in a single day.[2][5]

The financial implications of this venue shift are substantial for the privately funded LA28 organizing committee. By expanding the seating capacity from the originally planned 17,000 at USC to nearly 40,000 at SoFi Stadium, organizers stand to generate millions of dollars in additional ticket revenue. Swimming is consistently one of the most-watched and highest-grossing Olympic sports, and maximizing live attendance is a core pillar of LA28's strategy to turn a profit. Los Angeles Mayor Karen Bass emphasized that optimizing venue capacities across the region is essential to ensuring the Games leave a positive financial legacy for the city, mirroring the profitable outcomes of the 1932 and 1984 Los Angeles Olympics.[1][4]

The addition of six new 50-meter sprint events means the record-breaking crowds will witness 41 medal moments.
The addition of six new 50-meter sprint events means the record-breaking crowds will witness 41 medal moments.

Ultimately, the LA28 model aims to rewrite the economic playbook for mega-events. By relying on temporary, modular infrastructure inside existing world-class arenas, the host city avoids the billions of dollars in long-term debt typically associated with Olympic construction. Furthermore, the modular pools used at SoFi Stadium will not go to waste. As has become a tradition with temporary Olympic and Olympic Trials pools, the stainless-steel structures will likely be dismantled after the Games, sold, and permanently reassembled at community aquatic centers, leaving a tangible, usable legacy long after the stadium returns to football.[2][3]

How we got here

  1. May 2024

    The U.S. Olympic Trials at Lucas Oil Stadium proves the viability of massive NFL stadium pool conversions.

  2. June 2024

    LA28 organizers announce the initial proposal to move swimming from a planned USC baseball field venue to SoFi Stadium.

  3. March 2025

    The Los Angeles City Council officially approves the venue changes, allowing swimming to be hosted outside city limits in Inglewood.

  4. April 2025

    The IOC approves the addition of six new 50m sprint events, bringing the LA28 swimming program to a record 41 medal events.

  5. July 2028

    SoFi Stadium will co-host the Opening Ceremony before transitioning into a natatorium for the second week of the Games.

Viewpoints in depth

Olympic Organizers' View

Organizers argue that utilizing existing mega-stadiums is the only financially responsible way to host the Games.

LA28 and city officials argue that the era of building billion-dollar, single-use aquatic centers is over. By utilizing SoFi Stadium, they can double ticket revenue, accommodate unprecedented crowds, and avoid the long-term maintenance debt that has plagued past host cities. Mayor Karen Bass and LA28 executives emphasize that this flexible, modular approach is essential to ensuring the Games leave a positive financial legacy for Los Angeles, all while delivering a spectacular visual experience for global broadcasters.

Aquatic Sports Advocates' View

The international swimming community views the stadium setting as a monumental leap forward for the sport's visibility.

World Aquatics and swimming advocates are thrilled by the 38,000-seat arena, viewing it as a long-overdue elevation of the sport's profile. Combined with the addition of 50-meter sprint events across all strokes, advocates believe the massive stadium setting will create an electric, high-stakes atmosphere that redefines how aquatic competitions are presented globally. The success of the 2024 U.S. Olympic Trials in an NFL stadium proved to the community that the sport can easily draw and sustain arena-level crowds.

The Paralympic Logistical Challenge

Advocates point out the compromises required when relying on borrowed professional sports infrastructure.

Because SoFi Stadium is primarily an NFL venue, its availability is strictly capped by the start of the football preseason in August. This hard deadline means the modular pool must be torn down immediately after the Olympics, forcing Paralympic swimmers to compete in a separate, temporary facility in Long Beach. While organizers cite unavoidable scheduling conflicts, some Paralympic advocates express frustration over the venue split, arguing it highlights the inherent trade-offs and inequalities of relying on borrowed professional sports infrastructure rather than dedicated Olympic parks.

What we don't know

  • The exact configuration of the temporary stage that will cover the pool during the Opening Ceremony.
  • Which local community aquatic center will ultimately purchase and inherit the modular pool after the Games conclude.
  • How the open-air, canopy-covered stadium will affect ambient humidity and water temperature control during the competition.

Key terms

Natatorium
A building or structure containing a swimming pool, particularly one designed for competitive events.
Modular Pool System
A temporary swimming facility constructed using prefabricated stainless-steel panels and PVC liners that can be rapidly assembled and dismantled.
Infinity Screen
The massive, 80-million-pixel, dual-sided circular video board suspended above the field at SoFi Stadium.
White Elephant
A massive infrastructure project, such as a permanent Olympic stadium, that becomes obsolete and prohibitively expensive to maintain after the event concludes.

Frequently asked

Why is swimming taking place in the second week of the Olympics?

SoFi Stadium will co-host the Opening Ceremony during the first week. Swimming was moved to the second week to allow crews time to remove the ceremony stage and finalize the pool construction.

Where will the diving and water polo events be held?

Diving will take place at the Rose Bowl Aquatics Center in Pasadena, while water polo, artistic swimming, and open water swimming will be clustered in Long Beach.

Will the Paralympic Games also use the SoFi Stadium pool?

No. The temporary pool must be dismantled before the NFL preseason begins in August, so Paralympic swimming will be hosted at a separate facility in Long Beach.

What happens to the pool after the Olympics are over?

The modular stainless-steel pool will be dismantled, sold, and permanently reassembled at a local community aquatic center, leaving a usable legacy.

Sources

Source coverage

6 outlets

3 viewpoints surfaced

Olympic Organizers 35%Aquatic Sports Advocates 35%Paralympic Community 30%
  1. [1]SwimSwamOlympic Organizers

    Los Angeles City Council Officially Approves SoFi Stadium As Host Of LA 2028 Olympic Swimming

    Read on SwimSwam
  2. [2]Pool MagazineAquatic Sports Advocates

    LA28 to Transform SoFi Stadium Into Record-Breaking Olympic Swim Venue

    Read on Pool Magazine
  3. [3]Athletic BusinessOlympic Organizers

    Record-Breaking SoFi Stadium Approved as LA28 Olympics Swimming Venue

    Read on Athletic Business
  4. [4]ForbesParalympic Community

    2028 Olympic Swim Stadium

    Read on Forbes
  5. [5]World AquaticsAquatic Sports Advocates

    Swimming's Hollywood Home for LA28

    Read on World Aquatics
  6. [6]Swimming World MagazineAquatic Sports Advocates

    LA2028 Reveals 2028 Olympic Schedule, with Swimming from July 22-30

    Read on Swimming World Magazine
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