Tom Garfinkel announced on August 4 that he is stepping away from his role as president and CEO of the Miami Dolphins, ending a 13-year tenure during which the organization evolved from a single NFL franchise into one of the most commercially diversified sports and entertainment businesses in professional sports. Garfinkel will remain with the organization as Vice Chairman of the Dolphins and Hard Rock Stadium and as Managing Partner of the Miami Grand Prix. Simultaneously, owner Stephen M. Ross introduced Ross Sports & Entertainment, a newly structured entity that consolidates the Dolphins, Hard Rock Stadium, the Miami Grand Prix, the Miami Open tennis tournament, and the Precision Drive Club under one corporate umbrella, with Daniel Sillman named as its CEO.
- Under Garfinkel’s leadership, the Dolphins’ annual revenues increased by more than 400%, with more than $3 billion in future contractually obligated sponsorship income secured during his tenure.
- Garfinkel led the privately funded $550 million transformation of Hard Rock Stadium and oversaw the construction of the $135 million Baptist Health Training Complex.
- During his 13 years, the organization brought Formula 1 racing to Miami through the Miami Grand Prix (secured through 2041), established a 30-year agreement to host the Miami Open at Hard Rock Stadium, and won bids for the 2020 Super Bowl, the 2021 and 2026 College Football Playoff National Championship Games, and seven 2026 FIFA World Cup matches.
- Sillman, 37, is Ross’s son-in-law and co-founder of Relevent Sports, a global sports media rights company; he will have Head Coach Jeff Hafley, General Manager Jon-Eric Sullivan, and EVP of Football Operations Brandon Shore reporting directly to him.
- The Dolphins Cancer Challenge, which Garfinkel helped grow during his tenure, became the NFL’s largest charitable fundraiser, generating more than $100 million for cancer research.
- Several existing executives received promotions as part of the restructuring, including Todd Boyan to EVP of Hard Rock Stadium Operations, Chris Clements to EVP and CFO, and Jason Green to EVP and Chief Revenue Officer.
A Business Turnaround Measured in Revenue, Events, and Infrastructure
When Garfinkel joined the Dolphins in 2013, the organization was primarily an NFL franchise with a stadium in need of modernization. He inherited a property that had not hosted a Super Bowl since 2010 and a business model that depended overwhelmingly on football-related revenue. Over 13 years, Garfinkel systematically expanded that model into a year-round operation built on three pillars: stadium infrastructure, event acquisition, and sponsorship revenue.
The centerpiece of the physical transformation was the $550 million renovation of Hard Rock Stadium, funded entirely with private capital. The project modernized every element of the facility, from seating and suites to concourses and technology infrastructure, and repositioned the stadium as a venue capable of hosting events far beyond NFL games. That investment directly enabled the event portfolio that followed: the Formula 1 Crypto.com Miami Grand Prix, which Garfinkel helped secure through a deal extending to 2041; the Miami Open tennis tournament, brought to Hard Rock Stadium under a 30-year agreement; and a series of high-profile one-off events including the 2020 Super Bowl, two College Football Playoff National Championship Games, and seven FIFA World Cup matches in 2026, including the bronze medal game.
The financial results reflected the breadth of that diversification. Annual revenues grew by more than 400% during Garfinkel’s 13 years, a figure that captures not just ticket sales and broadcast revenue but the sponsorship income, event hosting fees, and ancillary revenue streams that a multi-sport, multi-event venue generates. The organization secured more than $3 billion in future contractually obligated sponsorship income, a pipeline that provides revenue visibility well beyond typical NFL planning horizons.
Garfinkel also oversaw the construction of the $135 million Baptist Health Training Complex, the Dolphins’ practice facility and football operations headquarters. And he helped grow the Dolphins Cancer Challenge into the NFL’s largest team-affiliated charitable fundraiser, generating more than $100 million for cancer research through the Sylvester Comprehensive Cancer Center at the University of Miami.
Ross Sports & Entertainment and the Sillman Appointment
The leadership transition is not a simple CEO replacement. Ross used the moment to formally restructure the organization under a new corporate entity, Ross Sports & Entertainment, that brings together all of the enterprise’s sports and entertainment properties under a single operational umbrella. The move reflects the reality that the Dolphins organization has functioned as a multi-property sports business for years; the RSE structure makes that operational model explicit.
Daniel Sillman, 37, takes the CEO role with a background that spans sports media, private investment, and global football rights. Sillman is Ross’s son-in-law and has worked alongside the owner for nearly a decade on strategic initiatives across the enterprise. His portfolio includes leading the process for multiple landmark private investments in the organization, executing the acquisition of a 45% stake in the Miami Open, and leading the search and hiring process for the Dolphins’ current general manager and head coach in 2026.
Outside the Dolphins organization, Sillman serves as co-founder and Executive Chairman of Relevent Sports, one of the world’s largest privately held sports and media rights companies. Under his leadership, Relevent has secured more than $10 billion annually in media rights agreements on behalf of organizations including UEFA, the Premier League, LaLiga, the Bundesliga, and the English Football League. He also serves as Executive Chairman of Relevent Football Partners, the commercial entity responsible for global commercialization of UEFA’s men’s club competitions. Sillman will continue in those roles alongside his RSE responsibilities.
The appointment carries a structural detail that extends beyond the business side. Sillman will oversee football operations for the Miami Dolphins, with Head Coach Jeff Hafley, General Manager Jon-Eric Sullivan, and Executive Vice President of Football Operations Brandon Shore all reporting directly to him. That reporting line means Ross himself is stepping back from the direct oversight of football decisions, a shift that represents a meaningful change in the franchise’s operational hierarchy.
What Garfinkel’s Departure Means for South Florida’s Event Economy
Garfinkel’s tenure reshaped not just the Dolphins’ business but the economic profile of the Hard Rock Stadium campus and, by extension, the Miami Gardens and greater South Florida event economy. The events he helped bring to the stadium generated billions of dollars in regional economic impact, according to estimates from host committees and local economic development agencies. The 2026 FIFA World Cup matches alone positioned Hard Rock Stadium as one of the premier international sporting venues in North America.
The question for the organization going forward is whether Sillman can maintain the event acquisition momentum that defined Garfinkel’s era. The Formula 1 deal is locked through 2041 and the Miami Open through the 2050s, providing two anchor events that generate recurring revenue independent of the Dolphins’ on-field performance. But the pipeline of future one-off events, from potential future Super Bowls to international soccer tournaments and other large-scale programming, will depend on the new leadership’s ability to compete against other major-market venues for hosting rights.
Garfinkel, in his departing statement, expressed confidence in that trajectory. “The business has never been in a better place and the team of people we have here is second to none in sports,” he said.
FAQs
Why Did Tom Garfinkel Step Down as Dolphins President and CEO?
Garfinkel described the decision as a personal one, stating that “after 13 years it was just the right time.” He is stepping away from day-to-day responsibilities but will remain with the organization as Vice Chairman of the Dolphins and Hard Rock Stadium and as Managing Partner of the Miami Grand Prix.
Who Is Daniel Sillman and What Is His Background?
Daniel Sillman, 37, is Stephen Ross’s son-in-law and co-founder of Relevent Sports, a global sports media rights company that secures more than $10 billion annually in media rights agreements for organizations including UEFA, the Premier League, and LaLiga. He has worked alongside Ross for nearly a decade and led the Dolphins’ 2026 general manager and head coach search.
What Is Ross Sports & Entertainment?
Ross Sports & Entertainment is a newly formed corporate entity that consolidates the Miami Dolphins, Hard Rock Stadium, the Miami Grand Prix, the Miami Open tennis tournament, and the Precision Drive Club under one organizational structure. Daniel Sillman serves as CEO, with existing Dolphins executives receiving promotions within the new entity.
What Were the Key Achievements of Garfinkel’s 13-Year Tenure?
Garfinkel’s tenure included a 400%+ increase in annual revenues, a privately funded $550 million Hard Rock Stadium renovation, the acquisition of the Formula 1 Miami Grand Prix (secured through 2041) and Miami Open (30-year deal), hosting the 2020 Super Bowl and seven 2026 FIFA World Cup matches, and growing the Dolphins Cancer Challenge into the NFL’s largest team-affiliated charitable fundraiser with more than $100 million raised.
