Mark S. Mastrov is an American businessman who is the co-founder and former CEO of

24 Hour Fitness 24 Hour Fitness is a privately held and operated fitness center chain headquartered in Carlsbad, California. It is the second largest fitness chain in the United States based on revenue after LA Fitness, and the fourth in number of clubs (behin ...

. He is also part of the

Sacramento Kings The Sacramento Kings are an American professional basketball team based in Sacramento, California. The Kings compete in the National Basketball Association (NBA) as a member of the Pacific Division (NBA), Pacific Division of the Western Confere ...

ownership group.

Career

The 24 Hour Fitness began in 1983 as a one-club operation called 24 Hour Nautilus. Mark Mastrov and Leonard Schlemm began the firm, with Mastrov and Schlemm remaining to continue its expansion. In 1998, David Giampaolo and Mark Mastrov co-founded Fitness Holdings Europe, a private-equity-backed investment vehicle, to open and acquire small chains of European health clubs. Fitness Holdings Europe was merged into 24 Hour Fitness Worldwide, Inc. in 2000. In 2010 Mastrov founded Hard Candy Fitness with

Madonna Madonna Louise Ciccone ( ; born August 16, 1958) is an American singer, songwriter, record producer, and actress. Referred to as the "Queen of Pop", she has been recognized for her continual reinvention and versatility in music production, ...

and her manager

Guy Oseary Guy Harley Oseary (; born October 3, 1972) is an Israeli-American talent manager and writer. His clients include Madonna, Amy Schumer and the Red Hot Chili Peppers, whom he has managed since 2021. Biography Guy Oseary was born on October 3, 1 ...

. In 2013, Mastrov became a member of a new

ownership group, which was led by

Vivek Ranadivé Vivek Yeshwant Ranadivé ( ; born 7 October 1957) is an Indian-American business executive, engineer, author, speaker and philanthropist.D'Agostino, RyanThe Man Who Knows Everything ''Esquire''. 19 January 2012. Ranadivé is the founder and for ...

. In November 2015, he founded professional

video gaming Video is an electronic medium for the recording, copying, playback, broadcasting, and display of moving visual media. Video was first developed for mechanical television systems, which were quickly replaced by cathode-ray tube (CRT) syst ...

esports Esports (), short for electronic sports, is a form of competition using video games. Esports often takes the form of organized, multiplayer video game competitions, particularly between professional players, played individually or as teams. ...

team

NRG Esports NRG Esports (or simply NRG) is an American esports organization based in Los Angeles, California. It has rosters in ''League of Legends'', ''Overwatch (video game), Overwatch'', ''Rocket League'', ''Valorant'', ''Counter-Strike 2'', ''Apex Legen ...

with Gerard Kelly and Andy Miller.

Personal life

Mastrov was born in 1958 in

Oakland Oakland is a city in the East Bay region of the San Francisco Bay Area in the U.S. state of California. It is the county seat and most populous city in Alameda County, with a population of 440,646 in 2020. A major West Coast port, Oakland is ...

California California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...

. He grew up in the

San Francisco Bay Area The San Francisco Bay Area, commonly known as the Bay Area, is a List of regions of California, region of California surrounding and including San Francisco Bay, and anchored by the cities of Oakland, San Francisco, and San Jose, California, S ...

and graduated from

Castro Valley High School Castro Valley High School is located in the unincorporated suburban community of Castro Valley, California, United States. It is a high school for grades 9 to 12. Named a National Exemplary School in 1984–85 and 1988–89, it was a California D ...

where he played

point guard The point guard (PG), also called the one or the point, is one of the Basketball positions, five positions in a regulation basketball game. A point guard has perhaps the most specialized role of any position and is usually the shortest player ...

. He has a bachelor's degree in business from

California State University, Hayward California State University, East Bay (Cal State East Bay, CSU East Bay, or CSUEB) is a public university in Hayward, California. The university is part of the California State University system and offers 136 undergraduate and 60 post-baccala ...

. Mastrov's daughter, Mia Mastrov, played college basketball for the

California Golden Bears The California Golden Bears are the athletic teams that represent the University of California, Berkeley. Referred to in athletic competition as ''California'' or ''Cal'', the university fields 30 varsity athletic programs and various club te ...

References

Living people 1958 births Businesspeople from Oakland, California Sacramento Kings executives Esports team owners California State University, East Bay alumni NRG Esports {{US-business-bio-1950s-stub