His parents are Chileans, his father Ricardo (a native of Antofagasta) settled in North America in 1988, where he met his mother María, who is from San Felipe.
After obtaining dual nationality, he traveled to Santiago for the first time to compete when he was 18 years old, taking the opportunity to get to know the country.
He decided to move to Chile for a year, being adopted by Julio Rueda and Patricia Farías, a couple in charge of bringing him closer to Chilean culture.
[7] Tabilo played in his home country tournament 2020 Chile Open as a wildcard, and defeated Paolo Lorenzi in the first round, losing to Casper Ruud in the second.
[7] Tabilo tried to repeat his run at the 2021 Australian Open, but lost in first round of qualifying to Hugo Dellien.
[9] In October, Tabilo qualified to the main draw of the Indian Wells Open, and got his first win on a Masters 1000 level, defeating Denis Kudla.
[11] Tabilo participated in the 2022 ATP Cup where Chile defeated Norway (won his singles match against Viktor Durasovic) and Serbia in singles and in doubles partnering Tomás Barrios Vera but lost to Spain and Chile finished second in Group A. Tabilo qualified for 2022 Australian Open after beating Australian local James McCabe in three sets, followed by victories over Constant Lestienne and Elias Ymer in straight sets.
[6] In February, he reached his first ever ATP final at the Córdoba Open as a qualifier, defeating Francisco Cerúndolo, Carlos Taberner, Sebastián Báez and World No.
[15] He made his debut at the 2022 Wimbledon Championships and recorded his first win at this Major defeating Laslo Đere in a tight five set match with a super tiebreak in the fifth.
[7] He squared much better in the Challenger Tour level, where he won four titles between May and November[18] and returned to the top 100 finishing the year at world No.
[19][20] At the 2024 ASB Classic he reached the final as a qualifier after a walkover from Cameron Norrie in the quarterfinal and a win over sixth seed Arthur Fils in straight sets.
He won his maiden ATP Tour title defeating Taro Daniel also in straight sets.
[21] At his home tournament, the 2024 Chile Open in Santiago, he reached the final in singles and won his first ATP title in doubles with compatriot Tomas Barrios Vera defeating another Chilean Matias Soto and Orlando Luz.
He reached the final at the 2024 Open Aix Provence Challenger in France[23] and moved into the top 35 in the rankings.
1, Novak Djokovic, in straight sets for the biggest win in his career, to reach the fourth round at this tournament for the first time.
At the 2024 Mallorca Championships, he made it to his third final of the season and fourth in his career, with a win over sixth seed Gaël Monfils.
[39] Following his participation at the 2024 Summer Olympics in Paris, also seeded 15th he reached the round of 16 at the 2024 National Bank Open in Montreal on his debut at the tournament, with wins over Frances Tiafoe and Lorenzo Sonego.