History of Gabriel Diallo in Timeline

Gabriel Diallo is a Canadian professional tennis player. He reached a career-high ATP singles ranking of No. 33 on August 18, 2025, and a doubles ranking of No. 321 on January 8, 2024. Diallo is currently the No. 3 ranked singles player from Canada.

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Full Timeline

September 24, 2001: Gabriel Diallo's Birth

On September 24, 2001, Gabriel Diallo was born. He is a Canadian professional tennis player.

Others born on this day/year

2018: Félix Auger-Aliassime won the Tashkent Challenger

In 2018, Félix Auger-Aliassime won the Tashkent Challenger.

November 2022: Career-High Ranking

On November 21, 2022, Gabriel Diallo finished the year at a career-high ranking of No. 224.

May 2023: Top 150 Debut in ATP Rankings

On May 22, 2023, after reaching the semifinals at the Challenger in Busan, South Korea, where he lost to top seed Max Purcell, Diallo made his top 150 debut in the ATP rankings.

August 2023: First ATP Tour Match Win and Masters 1000 Level Win

In August 2023, Diallo defeated Dan Evans to win his first ATP Tour match and first at the Masters 1000 level at the National Bank Open in Toronto. He also won the doubles title at the Winnipeg Challenger, partnering Leandro Riedi.

September 2023: Davis Cup Finals Victory

In September 2023, at the Davis Cup Finals group stage, Diallo recorded an upset victory over world No. 18 Lorenzo Musetti, winning in straight sets to give Canada the victory over Italy.

October 2023: Top 130 Ranking

On October 16, 2023, Gabriel Diallo won his second Challenger title at the Slovak Open and reached the top 130.

January 2024: Career-High Doubles Ranking

On January 8, 2024, Gabriel Diallo achieved a doubles ranking of No. 321.

May 2024: First Grand Slam Qualification

In May 2024, Diallo qualified for his first Grand Slam at the French Open, defeating Argentinians Genaro Alberto Olivieri and Marco Trungelliti and Alexander Ritschard. In the first round of the main draw, he lost to Kei Nishikori in five sets.

August 2024: US Open Debut and Qualification

In August 2024, ranked No. 144, Diallo qualified for the main draw of the US Open, making his debut, with wins over Sho Shimabukuro, Titouan Droguet and Valentin Royer.

September 2024: Career-High Ranking at US Open

As a result of reaching the third round in the US Open, on September 9, 2024, Diallo moved up 40 spots to a new career-high of world No. 103 in the rankings.

October 2024: Maiden ATP Tour Final and Top 100 Ranking

In October 2024, Diallo reached his maiden ATP Tour final at the Almaty Open and reached the top 100 in the rankings at world No. 87 on October 21, 2024.

May 2025: Top 60 Ranking

On May 5, 2025, as a result of making his debut at the clay Masters 1000, the Mutua Madrid Open, and recording his first Masters wins on clay, Gabriel Diallo reached the top 60 in the rankings. At the 2025 French Open Diallo pulled another upset, recording his first Grand Slam clay win over 18th seed Francisco Cerúndolo, his third top-20 career win.

June 2025: First ATP Title

At the 2025 Libéma Open Gabriel Diallo won his maiden ATP title making him the seventh first-time ATP Tour champion for 2025 and as a result reached the top 50 at world No. 44 in the singles rankings on June 16, 2025.

July 2025: Top 35 Ranking

On July 21, 2025, Gabriel Diallo reached the top 35 in the singles rankings.

August 2025: Career-High ATP Singles Ranking

In August 2025, Gabriel Diallo achieved a career-high ATP singles ranking of world No. 33.

2025: Wimbledon Championships

At the 2025 Wimbledon Championships, Diallo defeated Daniel Altmaier to reach the second round, in which he lost to fifth seed Taylor Fritz in a five-set match.