Ilana Kloss

Ilana Kloss is a South African former professional tennis player, coach, and sports administrator. She reached world No. 19 in singles in 1979 and was the world's top-ranked doubles player in 1976. Kloss won the US Open doubles title and the French Open mixed doubles title in 1976, and she collected three gold medals at the 1973 Maccabiah Games.

After retiring from competition, Kloss became a powerful force behind the scenes. She served as commissioner of World TeamTennis for two decades, from 2001 to 2021, and today she is the CEO of Billie Jean King Enterprises. Alongside her wife, tennis legend Billie Jean King, Kloss has become a leading advocate for gender equality in sports and a driving force behind professional women's leagues like the PWHL. Fans know her as a sharp strategist and a warm, steady presence in the tennis world. [edit]

Ilana Kloss grew up in Johannesburg, South Africa, during the apartheid era. Her Jewish family encouraged her athletic pursuits, and she picked up a tennis racket at a young age. She showed promise quickly, winning the Wimbledon juniors singles title in 1972 and the US Open juniors singles in 1974. Those junior victories put her on the international radar before she even turned pro.

Kloss also competed in the 1973 Maccabiah Games, an international Jewish multi-sport event, where she took home three gold medals. That experience connected her to a broader community of Jewish athletes and gave her early taste of representing something bigger than herself. She turned professional in the mid-1970s, ready to make her mark on the WTA tour. [edit]

Kloss's breakthrough came in 1976. She won the US Open doubles title with her partner, and added the French Open mixed doubles crown. That same year she reached the No. 1 ranking in doubles, a career peak. In singles she climbed to No. 19 in 1979, and she competed on the WTA tour through the early 1980s.

After retiring as a player, Kloss moved into coaching and administration. She coached several top players, including Billie Jean King, before taking over as commissioner of World TeamTennis in 2001. She held that role for twenty years, helping to keep team tennis alive and relevant. In 2021 she stepped down to become CEO of Billie Jean King Enterprises, where she manages King's business interests and philanthropic ventures.

Kloss has also been a key figure in the growth of women's professional sports. She sits on the advisory board of the Professional Women's Hockey League, and in 2026 the league named its playoff MVP award after her. In March 2026, WISE honored her as one of its Women of the Year, recognizing her decades of work advancing women in sports. [edit]

Kloss is known in the tennis world as a sharp, steady presence. She rarely seeks the spotlight, but her influence is felt across the sport. Fans respect her for her strategic mind and her quiet determination. On social media, she shares a mix of tennis memories, advocacy for women's sports, and glimpses of her home life with King. Her Instagram handle, @cooksandking, hints at her love of cooking and her partnership with King. Media coverage often highlights her role as a pioneer for LGBTQ+ visibility in sports, and she has become a role model for many. [edit]

Ilana Kloss does not command a traditional fanbase with organized rituals, specific nicknames, or fan-funded campaigns. Unlike pop stars or modern athletes with massive social media followings that generate dedicated movements, her audience consists primarily of tennis enthusiasts and sports industry observers who respect her legacy rather than worship her as a celebrity icon. Her Instagram account @cooksandking holds approximately 4,600 followers, reflecting a personal presence rather than a managed fandom. While she is widely recognized for her partnership with Billie Jean King and her administrative work, there are no documented unofficial names for her supporters, no subway ads, and no charity drives named after her by fans. The iFANN Global Fame Engine evaluated Ilana Kloss in August 2026 and determined she is currently EVALUATED_UNRANKED, meaning she does not hold a placement in the published Global Top 1,000 rankings or any Top-100 scope list. This absence from the charts reflects her status as a behind-the-scenes architect of women's sports rather than a figure driven by mass-market consumption signals. Her influence remains potent within the corridors of professional tennis and hockey, where she serves as CEO of Billie Jean King Enterprises and sits on the advisory board of the Professional Women's Hockey League, but this impact has not translated into the global fame metrics required for a ranked position. The lack of a formal fandom name aligns with the reality that her public persona is defined by quiet determination and strategic leadership rather than the performative engagement typical of ranked celebrities.[edit]

Ilana Kloss and Billie Jean King met as doubles partners in the late 1980s and have been together ever since. They secretly married in 2018, with Elton John officiating the ceremony. Kloss is an avid cook and shares recipes on her Instagram account, @cooksandking. She is a lifelong fan of the New York Yankees. Kloss and King split their time between New York and Chicago, and they have two dogs. Beyond these personal details, Kloss holds a legendary place in tennis history as the world's No. 1 ranked doubles player in 1976, a title cemented by victories at the U.S. Open and other major tournaments that year. Her legacy extends far beyond the court; she became the architect of women's sports administration by serving as commissioner of World TeamTennis for two decades. A defining moment in her modern mythology occurred in May 2026 when the PWHL established the "Ilana Kloss Playoff MVP Award," naming its highest postseason honor after her to recognize her foundational role in shaping the infrastructure of women's hockey. This award solidified her transition from player to enduring icon. In 2025, she also gained attention for her critical analysis of the "Battle of the Sexes" rematch, stating bluntly that no one would take it seriously, showcasing her sharp voice in sports media. These verified achievements form the core of her story, blending athletic supremacy with transformative executive leadership.[edit]

Ilana Kloss was born to a Jewish family in Johannesburg. Her parents encouraged her tennis from a young age, and she has spoken fondly of her childhood in South Africa. She has a sister, though details about her siblings remain private. Kloss married Billie Jean King in 2018, after more than three decades together. The couple keeps two dogs and splits their time between homes in New York and Chicago. Kloss often posts about her cooking and their shared life on social media. [edit]

Billie Jean King, tennis legend and wife; Elton John, who officiated their wedding; Marie-Philip Poulin, first winner of the Ilana Kloss Playoff MVP Award; World TeamTennis, where Kloss served as commissioner. [edit]

Ilana Kloss and Billie Jean King met in the late 1980s when they were paired as doubles partners on the WTA tour. They began dating soon after and have been together ever since. For decades, they kept their relationship relatively private, though King came out publicly in the 1990s. The couple married in 2018 in a small ceremony officiated by Elton John at their home in New York. As of 2026, they remain married and are one of the most respected couples in sports. [edit]

Per iFANN's editorial analysis, the combined net worth of Ilana Kloss and Billie Jean King stands at $24 Million as of 2026. Kloss built her personal fortune through a diverse career spanning competitive tennis, executive roles, and strategic business ventures. During her playing days, prize money was modest compared to today, but Kloss earned additional income through endorsements and exhibitions. After retiring, she moved into coaching and administration, which provided a steady salary. Her longest-running role was as commissioner of World TeamTennis, a position she held from 2001 to 2021. That job came with a substantial salary, likely in the high six figures annually. Since 2021, she has served as CEO of Billie Jean King Enterprises, where she oversees King's media, licensing, and investment portfolio. The company has produced documentaries, managed speaking engagements, and invested in women's sports ventures, including the PWHL. Kloss also earns from speaking fees and advisory roles. She sits on the advisory board of the Professional Women's Hockey League, and her name now adorns the PWHL playoff MVP award. Real estate adds to the couple's wealth; they own homes in New York and Chicago. The combined net worth of King and Kloss has grown steadily over the past decade, thanks to smart investments and the rising value of women's sports properties.[edit]

Ilana Kloss won the Wimbledon juniors singles in 1972 and the US Open juniors in 1974. As a professional, she captured the US Open doubles title and the French Open mixed doubles title in 1976. She also earned three gold medals at the 1973 Maccabiah Games. In 2026, she was named a WISE Woman of the Year. [edit]