Chasing the impossible.

On a midwestern Saturday night in August 1941, Tony Zale, Indiana steelworker, eventual middleweight champion of the world, climbed into a ring set up at Juneau Park on Milwaukee’s lakefront and stopped Billy Pryor in the ninth round. The official paid attendance was reported as 135,132. Some accounts have it higher. The figure has been cited and re-cited by boxing historians for decades, and across every modern boxing record list it remains the largest live audience ever assembled for a fight.

It was a different sport in a different country. There was no pay-per-view. There was no ticketing platform. Most of the live audience paid at the gate or walked in free as part of a public gathering tied to the war-relief campaigns of the era. Photographs from the night show a crowd that looks more like a city celebration than a boxing card, heads packed shoulder-to-shoulder, all the way up the slope of the park.

The record has not been seriously challenged since. There are structural reasons. Boxing moved indoors in the post-war decades, into arenas, then into casinos, then into pay-per-view television studios. Modern arenas cap out around twenty thousand. The biggest indoor cards of the last decade, Saudi Arabia’s Riyadh Season events, MGM Grand cards, Madison Square Garden championship nights, all live somewhere between 15,000 and 30,000 paid in attendance. Live revenue gave way to broadcast revenue, and the venues followed.

The closest the modern era has come is Anthony Joshua versus Daniel Dubois at Wembley Stadium in September 2024. The card sold out 98,000 seats. It was the largest paying boxing crowd in modern history. It was also still 37,000 short of Zale–Pryor.

To break the 1941 record, you cannot rent an arena. You have to fill a public square.

Civic Center Plaza is one of the few civic-scale outdoor spaces in the United States. The Plaza sits between San Francisco City Hall, the War Memorial Opera House, the Asian Art Museum, and the San Francisco Public Library, an open-air bowl in the architectural heart of the city. The plaza alone covers around eight acres. With the surrounding bowl, the connecting promenades, and Fulton Street, the footprint is dramatically larger.

The site has hosted Pride. It has hosted championship parades. It has hosted civic gatherings on a six-figure scale. What it has not hosted, in modern memory, is a world championship boxing card. iVB Boxing’s plan is to bring the ring to City Hall, a square stage in the open air, with City Hall’s dome as the literal backdrop, and to extend the audience into every corner of the plaza, the front steps, and the public realm beyond.

San Francisco was, for parts of the early twentieth century, one of the most important boxing cities in the world. The Sharkey vs Maxwell era. The Cow Palace cards of the 1950s. Fillmore Street gyms that produced champions. The civic-event tradition is in the city’s memory. iVB Boxing’s argument is that 2026 is the year the city stops remembering and starts hosting again.

A world-record live attendance attempt does not happen at $200 a seat. The ceiling on paid attendance is the ceiling on what people will pay for. Wembley topped out at 98,000 because that is what the stadium holds and what people will buy. To go past 135,132, you cannot rely on paid tickets alone.

iVB Boxing’s answer is a free Fan Zone. Free admission, all day, in the heart of Civic Center Plaza. No paywall. No upper limit beyond the public-safety capacity of the square. The paid tiers sit alongside the Fan Zone, General Admission Plaza Standing from sixty dollars, four ringside zones around the floor, and three VIP Experiences from Gold ($2,500) to VVIP ($6,000), and they fund the production. The Fan Zone is the audience.

Beyond the in-person crowd, the night is broadcast worldwide on YouTube, free, in real time. Even if the live attendance does not break the 1941 record on its own, and the operating bet is that it can, the combined live-and-broadcast audience reframes what “biggest boxing event ever” means. The argument is no longer whether 135,132 paying customers can be assembled in one place; it is whether boxing’s largest single-night audience can be assembled across a public square and a global stream. The iVB Boxing model says yes.

The headline is Anthony “Princesa” Olascuaga defending his WBO World Flyweight Championship over twelve rounds against Andy Dominguez, Olascuaga’s Los Angeles homecoming, Dominguez’s first major world title attempt. The middleweight co-feature pairs WBO Global Middleweight Champion Vito Mielnicki Jr. with Argentine champion Gerardo Luis Vergara for the WBC, IBF and WBO Regional Middleweight Championships over ten rounds. The undercard runs across super featherweight (Charly Suarez vs Manuel Avila), heavyweight (Gurgen Hovhannisyan vs Uila Mau’u, two undefeated 10-0 prospects), and featherweight (Oscar Bonifacino vs Raul Escudero).

The full ten-fighter roster is on the boxers page. Date, time, venue and ticket tiers, including the free Fan Zone, are on the tickets page.

If 135,132 people walk into Civic Center Plaza on July 11, 2026, the live boxing attendance record falls for the first time since the United States entered the Second World War. If the YouTube broadcast carries the night to ten million more, the largest single-night boxing audience in the sport’s history is set on a new floor. Either way, the most interesting thing about the night is not the number. It is that the city watched it together.

That is the version of the sport iVB Boxing was set up to build. Bringing boxing back to the people. A world championship card in a public square. Free admission for anyone who wants to be in the room. And, for the first time in eighty-five years, a serious, declared attempt at the record nobody has touched.