In March 2020, at just 19 years old, Seyboth Wild won his first ATP Tour title in Santiago defeating Casper Ruud.

Seyboth Wild was born on 10 March 2000 in the municipality of Marechal Cândido Rondon of Paraná in the Southern Region of Brazil.

His father, Claudio Ricardo Wild, manages several tennis academies in Brazil, and his mother, Gisela Christine Seyboth, is a doctor.

With the title, he jumped to the 235th place in the world ranking, and became the third best tennis player in Brazil at the moment, behind only Thiago Monteiro and João Menezes.

In February 2020, he received wildcard to participate in the ATP 500 in Rio de Janeiro, where he defeated the Spaniard top 100 Alejandro Davidovich Fokina in three sets (5–7, 7–6 (7–3) and 7–5) in the first round, in the longest match in the history of the tournament (3 hours and 49 minutes).

In the following week, invited as a wildcard to the ATP 250 in Santiago, Wild had his best campaign: he defeated Facundo Bagnis, Juan Ignacio Londero (world No.

In the semifinals he defeated Renzo Olivo in straight sets becoming the youngest Brazilian to reach a final at this level, surpassing the achievements of former world No.

Wild was also the youngest tennis player to win a title in the Latin American clay court swing since Rafael Nadal won Acapulco in 2005, at the age of 18.

[11] After two years of having poor results, in March, Wild reached the final of the Challenger in Santiago, losing to Hugo Dellien, and the following week, he won the Challenger in Vina del Mar, defeating top seed Hugo Gaston and returning to the top 230 in the singles rankings on 20 March 2023.

[16][17] In May, participating in the Piemonte Open, which is an ATP Challenger Tour 175 event, he reached the quarterfinals losing to the top seed and top-50 player, Argentine Sebastián Báez, in three sets.

[24] He defeated Jelle Sels and Pierre-Hugues Herbert, but in the last round of qualifying, faced Tomás Barrios Vera.

At the beginning of the fifth and final set, he suffered a slight sprain in his ankle that cost him his place in the main draw of Wimbledon.

[27] He defeated former top 20 Benoît Paire in the semifinal and former top-40 Pedro Martínez in the final, winning his fourth career Challenger title and third of the year.

[32] Wild entered the Australian Open main draw for the first time in his life, having been drawn to face the fifth seed, Andrey Rublev.

[33] At 2024 Rio Open, Wild reached the quarterfinals of an ATP 500 for the first time, beating Alejandro Tabilo and Jaume Munar.

[35] Following his first round Román Andrés Burruchaga at the ATP 250 2024 Chile Open, he entered the top 70 for the first time in his career.

65 in the world, Wild entered the Masters 1000, 2024 BNP Paribas Open in Indian Wells as the top seed in the qualifying competition.

[38] Since Thomaz Bellucci's performance in Rome in 2016, a Brazilian player had not recorded two consecutive match wins in the main draw of a Masters.

[42][43] In a 3-hour battle against No.23 seed Nicolás Jarry, where both served at a high level throughout the game, Wild came out ahead but was eliminated by 2 sets to 1.

[46] Wild defeated the Russian number 42 in the world in straight sets, and in the 2nd round, he faced Lorenzo Musetti, seeded 28th and 29th in the rankings, and, repeating the 2018 US Open youth final, also won in straight sets, reaching the 3rd round where he played with the current two-time Madrid Masters 1000 champion and former world No.

[47][48][49] At the Masters 1000 in Rome, Wild defeated Grégoire Barrère, but in the 2nd round he was eliminated by Argentine Tomás Martín Etcheverry, top 30 in the world.

[5] In September 2021, it was revealed that Seyboth Wild was being investigated by Brazilian Civil Police of Rio de Janeiro State for physical and emotional abuse towards ex-girlfriend Thayane Lima,[54] for which he received a restraining order.

[57][58] Two lawsuits investigating the allegations of domestic and psychological violence and moral damage were filed in April 2023, with the government indicting Wild.