2023: First Masters win, French Open debut, top 150
Ranked No. 182, he received a wildcard for the main draw of the 2023 Miami Open for a consecutive year, recording his first Masters 1000 win over John Isner in straight sets with two tiebreaks. He lost to Taylor Fritz in 58 minutes. He also received a wildcard for the Masters in Madrid.
He made his main draw debut at the 2023 French Open as a qualifier, losing to Roberto Carballés Baena. He won the Challenger title in Modena and moved to a new career-high ranking of No. 168 on 3 July 2023. [13] He qualified for the 2023 US Open but lost to fifth seed and former US Open finalist Casper Ruud. [14]
2024–2025: Three Challenger titles, Masters third round, Top 110
Nava qualified for the 2024 Dallas Open defeating compatriot Aidan Mayo and Marco Trungelliti in the qualifying competition, before losing to Michael Mmoh in the first round of the main draw. In doubles, at the same tournament, he reached the semifinals with Ben Shelton. He received a wildcard for the 2024 Delray Beach Open. [15] [16] [17] He also qualified for the 2024 Los Cabos Open defeating wildcard Nicolás Mejía and again alternate player Aidan Mayo. He scored his third ATP win and second outside the Majors, over wildcard Diego Schwartzman. [18]
At the 2024 BNP Paribas Open in Indian Wells, in the first qualifying round, he saved seven match points to defeat compatriot Steve Johnson in what was the last singles match of Johnson’s career. He lost to another compatriot Denis Kudla in the next round. [19] At the next Masters, the 2024 Miami Open, he reached the main draw, after qualifying with wins over Quentin Halys and Yoshihito Nishioka, for a fourth consecutive year. [20] As a result he reached the top 125 in the rankings on 1 April 2024.
In 2025, he won three Challenger titles in a row, at the 2025 Paraguay Open in Ascuncion, [21] his fourth in Concepción, Chile and his fifth in Sarasota and returned to the top 150 on 15 April 2025. Nava and Borna Ćorić were the only players thus far with three Challenger trophies in 2025. [22] [23] He was just the second American to win three clay-court Challenger trophies in the same season after his good friend Tristan Boyer who accomplished the feat in 2024. [1] Nava reached a fourth consecutive final in Tallahassee but lost to Chris Rodesch. [24] [2]
He gained a wildcard entry into the 2025 French Open by winning the United States Tennis Association's Roland Garros Wild Card Challenge [25] and recorded his first win at the tournament over Botic van de Zandschulp in straight sets. [26] Nava lost to 10th seed Holger Rune in the second round. [27]
He reached his first ATP quarterfinal at the 2025 Los Cabos Open where he defeated Aleksandar Vukic and sixth seed Bu Yunchaokete en route [28] and secured a new career-high ranking in the top 120. [29] At the 2025 National Bank Open Nava qualified for the main draw defeating Mitchell Krueger making his debut in Canada. He recorded his first wins at the tournament over Zizou Bergs and then lucky loser Térence Atmane to reach his first career Masters third round. As a result he moved into the top 110 in the singles rankings. [30]
United States 
