"[15] He helped sponsor Gauff through his Champ'Seed foundation, which he created to provide funding for talented juniors who did not have the financial resources to afford high-level training.

[16] Gauff won the USTA Clay Court National 12-and-under title at the age of 10 years and three months to become the youngest champion in the tournament's history.

She finished runner-up to Jaimee Fourlis in her third career event, the Grade 1 Prince George's County Junior Tennis Championships in Maryland.

[19] At her next event, Gauff made her junior Grand Slam debut at the 2017 US Open and finished runner-up to Amanda Anisimova.

[26] In September 2018, Gauff represented the United States at the Junior Fed Cup with Alexa Noel and Connie Ma.

[29] Gauff made her debut on the ITF Women's Circuit in May 2018 at the age of 14 as a qualifier in the $25k event at Osprey, where she won her first professional match.

Gauff became the youngest player to reach the main draw at Wimbledon by qualifying in the Open Era at the age of 15 years and three months.

She continued her Grand Slam success in singles with two three-set wins over Anastasia Potapova and Tímea Babos, both on Louis Armstrong.

[47] In doubles, Gauff and McNally won two matches, including an upset over ninth seeds Nicole Melichar and Květa Peschke.

[49] Although Gauff lost in qualifying at the Linz Open, she entered the main draw as a lucky loser and won the title, notably upsetting top seed Kiki Bertens in the quarterfinals for her first top-10 victory.

[52] Gauff and McNally ended their year with a second WTA doubles title at the Luxembourg Open over Kaitlyn Christian and Alexa Guarachi.

In doubles, Gauff and McNally recorded their best result in a Grand Slam championship to date, reaching the quarterfinals before falling to second seeds and eventual champions, Kristina Mladenovic and Tímea Babos.

34, Ons Jabeur, in the first round of the Italian Open before losing to two-time Grand Slam champion Garbiñe Muguruza.

13, Johanna Konta, in the first round, but went on to lose to eventual quarterfinalist Martina Trevisan in a second-round match in which Gauff hit 19 double faults.

In the women's doubles, Gauff and McNally stormed into their first Grand Slam semifinal without dropping a set and in the finals, they lost to Sam Stosur and Zhang Shuai.

[79] In February, Gauff reached the quarterfinals at the Qatar Open by defeating Shelby Rogers, Caroline Garcia and third seed Paula Badosa.

Gauff reached her first Grand Slam singles final at the French Open, defeating Rebecca Marino, Alison Van Uytvanck, Kaia Kanepi, 31st seed Elise Mertens, Sloane Stephens, and Martina Trevisan, before losing to Iga Świątek in straight sets.

After winning her first two matches at Wimbledon Championships as the 11th seed against unseeded Romanians Elena-Gabriela Ruse and Mihaela Buzărnescu, Gauff lost in the third round to 20th Amanda Anisimova in three sets.

Seeded sixth at the Silicon Valley Classic, she reached the quarterfinals defeating Anhelina Kalinina in the first round, and next Naomi Osaka who saved seven match points.

She beat sixth seed Aryna Sabalenka, a day after ousting Wimbledon champion Elena Rybakina, winning both matches in a third-set tiebreak.

[92] At the US Open, she reached the quarterfinals of this major for the first time with wins over 20th seed Madison Keys and Zhang Shuai becoming the youngest American woman to achieve this feat since 2009, when Melanie Oudin was 17.

[99] At the same tournament in doubles, Gauff and Jessica Pegula defended their title, defeating Lyudmyla Kichenok and Jeļena Ostapenko in a three-set match.

They became the first all-American duo to win the Miami Open doubles title in 22 years, defeating Leylah Fernandez and Taylor Townsend in the final.

[109] At the Italian Open she reached the semifinal for the second time at this tournament and second at the WTA 1000 level for the season defeating Magdalena Fręch, Jaqueline Cristian, Paula Badosa and seventh seed Zheng Qinwen.

[112] At the 2024 French Open with new partner Katerina Siniaková, she lifted her first Grand Slam tournament doubles trophy defeating 11th seeds Sara Errani and Jasmine Paolini in the final.

[134] At the 2021 French Open, Gauff wore a New Balance outfit of bold mismatched color splotches to contrast with the all-white ensemble of doubles partner Venus Williams.

[135] In March 2019, Gauff announced a multi-year sponsorship agreement with Italian food company Barilla, which also sponsors Roger Federer.

[137] In January 2024 at the Australian Open, Gauff debuted a new New Balance pair of shoes with geographical coordinates specially inscribed on the soles.

She revealed in a post-match interview that the coordinates (26 28 0.75” N 80 5’ 1.4” W) pointed to public tennis courts in Delray Beach where she grew up and trained.

[141] In July 2023, Gauff and actress Storm Reid helped fund a new playground and purple-painted tennis courts in East Atlanta's Brownwood Park.