Rybakina and the Club of Six: 224 Days Between Two Slams

Graf, Seles, Hingis, Kerber, Sabalenka, Rybakina. Six names in thirty-eight years: the complete list of players who have won the Australian Open and US Open in the same calendar year since 1988. Its brevity says something precise about how the tennis calendar is built.

1988 isn't an arbitrary date. Until 1987 the Australian Open was played at Kooyong, on grass. From the following edition the tournament moved to Flinders Park, today's Melbourne Park, trading the lawn for Rebound Ace. From that point on, the two tournaments have shared the same family of surfaces. Today Melbourne uses GreenSet and New York uses Laykold, both since 2020, two products with different speeds and bounce but the same footwork and strokes required. Winning both in the same year should be the most accessible double on tour. It isn't.

Two hundred and twenty-four days

The 2026 Melbourne final was played on January 31, the New York one on September 12. Between them lie 224 days, the widest gap between two majors in the same year. Roland Garros and Wimbledon are separated by three weeks. The Australian Open and the US Open sit at the two opposite ends of the season.

This changes the nature of the feat. Repeating on the same surface is the easy part. The hard part is arriving in September with the same tennis you had in January, after four months on clay and grass that, for a hard-court player, mostly amount to wear and tear.

Whoever wins Melbourne arrives with the season barely open, body rested, ranking pressure still all ahead. Whoever wins New York arrives after eight months of time zones, mandatory tournaments and accumulated injuries, often defending something. The hard-court double demands passing two exams that measure different things.

Who came before

For almost thirty years this list was a byproduct of dominance. Steffi Graf won all four majors plus Olympic gold in Seoul in 1988, and the following year she won three, losing only the Paris final to Arantxa Sánchez Vicario. Monica Seles did the same in 1991 and 1992: three majors a season, skipping Wimbledon the first time and losing its final the second. Martina Hingis won Melbourne, Wimbledon and New York in 1997 at sixteen, stopped only by Iva Majoli in the Roland Garros final.

None of the three was aiming for the two hard-court tournaments specifically. They won them because they won almost everything.

Nineteen years pass between Hingis and Angelique Kerber, and the meaning of the list changes. Kerber entered 2016 with no Slam to her name. She won Melbourne in January, lost the Wimbledon final, took Olympic silver in Rio, won New York and closed the year as world number one. She wasn't the dominant player of that season; she had built an unrepeatable year, and indeed she never repeated it. Sabalenka confirmed the new model in 2024: a hard-court specialist who collects the two tournaments built for her tennis, without ever having won a major on clay or grass.

The Rybakina case

Rybakina is the starkest version of this second type. In 2026 she lost in the second round of Roland Garros to Yulia Starodubtseva, her earliest exit in Paris since 2020. At Wimbledon, the tournament she won in 2022, she stopped in the third round against Elise Mertens. On August 20 in Cincinnati she retired against Iga Swiatek at 1-4 in the first set with a left ankle problem. Twenty-three days later she was standing at Arthur Ashe with the trophy in her hands.

At the two extremes of the season sit two finals against the same opponent. In Melbourne on January 31 she beat Sabalenka 6-4 4-6 6-4. In New York on September 12 she won 6-4 5-7 6-2, ending a streak of nineteen consecutive US Open wins for the Belarusian. Both titles came against the world number one, whose spot Rybakina has held since Monday, September 14: the thirtieth player to reach it since the WTA rankings began in 1975, and the first Kazakh.

There's a detail that makes her place on the list unusual. Rybakina has been a Slam champion since July 2022, but that Wimbledon awarded her not a single ranking point: the tournament had been stripped of ranking status after the exclusion of Russian and Belarusian players. For four years the rankings described a different player from the one who had lifted the silver plate on grass. The two hard-court tournaments settled the account, and they did it in three sets, as happened in all three of her Slam finals won.

The list of six doesn't record who was the best player of the year. It tells us who was the strongest on the surface that opens and closes the season, and who arrived more or less intact at the other end of the calendar. That's why it starts in 1988, why nineteen years passed between Hingis and Kerber, and why Rybakina's win and her season are worth underlining.