Fiche joueur ATP — Proofset
Stefan Kozlov
Identité et bilan en carrière
| Champ | Valeur |
|---|---|
| Identifiant fiche | 77007 |
| Circuit | ATP |
| Pays | USA |
| Date de naissance | 1998-02-01 |
| Main de jeu | Main droite |
| Taille (m) | 1.83 |
| Poids (kg) | 79 |
| Début professionnel | 2013 |
| Rang actuel | #271 |
| Classement relevé le | 2026-11-04 |
| Matchs enregistrés | 657 |
| Victoires | 372 |
| Défaites | 285 |
| Premier match enregistré | 2012-07-23 |
| Dernier match enregistré | 2026-11-04 |
| Fiche mise à jour le | 2026-11-05 |
Bilan par saison
| Saison | Matchs | Victoires | Dur (V-D) | Salle (V-D) | Terre (V-D) | Gazon (V-D) | Finales disputées |
|---|---|---|---|---|---|---|---|
| 2012 | 3 | 2 | 2-1 | — | — | — | — |
| 2013 | 21 | 13 | 3-2 | — | 10-5 | 0-1 | — |
| 2014 | 32 | 17 | 15-10 | 0-2 | 2-3 | — | Sacramento Challenger (Finale) |
| 2015 | 71 | 44 | 15-12 | 17-8 | 10-5 | 2-2 | Belarus F4 (Titre), Belarus F3 (Finale), Mexico F3 (Finale), USA F15 (Finale) |
| 2016 | 90 | 58 | 28-16 | 16-5 | 10-6 | 4-5 | Columbus Challenger (Titre), Suzhou Challenger (Finale), USA F13 (Titre), Le Gosier Challenger (Finale), Canada F2 (Titre), USA F1 (Titre) |
| 2017 | 59 | 31 | 15-13 | 3-2 | 8-8 | 5-5 | Las Vegas Challenger (Titre) |
| 2018 | 40 | 14 | 5-12 | 1-4 | 7-6 | 1-4 | — |
| 2019 | 39 | 21 | 13-9 | 4-5 | 4-4 | — | M25 Calabasas 1 (Finale) |
| 2020 | 26 | 13 | 7-8 | 6-5 | — | — | — |
| 2021 | 56 | 41 | 20-12 | 16-1 | 5-2 | — | Champaign Challenger (Titre), Charlottesville Challenger (Titre), Las Vegas Challenger (Finale), Columbus Challenger (Titre) |
| 2022 | 55 | 21 | 14-18 | 4-5 | 0-5 | 3-6 | Las Vegas Challenger (Finale) |
| 2023 | 18 | 6 | 1-6 | 5-6 | — | — | — |
| 2024 | 56 | 37 | 16-9 | 4-2 | 17-8 | — | — |
| 2025 | 40 | 28 | 12-6 | 10-3 | 6-2 | 0-1 | Champaign Challenger (Titre), M25 Xalapa 1 (Titre) |
| 2026 | 51 | 26 | 7-13 | 11-6 | 5-5 | 3-1 | — |
Matchs de la saison
| Date | Tournoi | Surface | Tour | Adversaire | Issue | Score |
|---|---|---|---|---|---|---|
| 2025-11-03 | Knoxville Challenger | Salle | 1er tour | Dominique Rolland | Victoire | 7-6(1) 2-6 6-1 |
| 2025-11-05 | Knoxville Challenger | Salle | 2e tour | Jay Clarke | Défaite | 6-2 2-6 6-3 |
| 2025-11-11 | Champaign Challenger | Salle | 1er tour | Leo Borg | Victoire | 6-1 6-0 |
| 2025-11-13 | Champaign Challenger | Salle | 2e tour | Tyler Zink | Victoire | 6-3 6-3 |
| 2025-11-14 | Champaign Challenger | Salle | Quart de finale | Darwin Blanch | Victoire | 6-2 6-7(7) 6-3 |
| 2025-11-15 | Champaign Challenger | Salle | Demi-finale | Cedrik-Marcel Stebe | Victoire | 6-0 4-0 ret. |
| 2025-11-16 | Champaign Challenger | Salle | Finale | Murphy Cassone | Victoire | 7-6(3) 7-5 |
| 2025-11-25 | Bogota Challenger | Terre | 1er tour | Juan Bautista Torres | Victoire | 6-0 4-6 6-3 |
| 2025-11-27 | Bogota Challenger | Terre | 2e tour | David Jorda Sanchis | Victoire | 6-4 6-4 |
| 2025-11-28 | Bogota Challenger | Terre | Quart de finale | Juan Sebastian Gomez | Défaite | 4-6 6-4 7-5 |
| 2026-01-06 | Nottingham 1 Challenger | Salle | 1er tour | Tyler Zink | Victoire | 6-4 6-1 |
| 2026-01-07 | Nottingham 1 Challenger | Salle | 2e tour | Mathys Erhard | Victoire | 6-2 6-4 |
| 2026-01-08 | Nottingham 1 Challenger | Salle | Quart de finale | Toby Samuel | Défaite | 7-6(1) 6-4 |
| 2026-01-13 | Glasgow Challenger | Salle | 1er tour | Harry Wendelken | Défaite | 6-1 3-6 6-4 |
| 2026-01-18 | Oeiras 1 Challenger | Salle | Qualifications (1er tour) | Robert Strombachs | Victoire | 6-3 5-0 ret. |
| 2026-01-19 | Oeiras 1 Challenger | Salle | Qualifications (3e tour) | Mikhail Kukushkin | Victoire | 6-4 6-2 |
| 2026-01-20 | Oeiras 1 Challenger | Salle | 1er tour | Alexis Galarneau | Victoire | 7-6(2) 2-6 6-1 |
| 2026-01-22 | Oeiras 1 Challenger | Salle | 2e tour | Francesco Passaro | Défaite | 6-3 1-6 6-1 |
| 2026-01-28 | San Diego Challenger | Dur | 1er tour | Sho Shimabukuro | Défaite | 6-2 4-6 7-6(5) |
| 2026-02-02 | Cleveland Challenger | Salle | 1er tour | Cedrik-Marcel Stebe | Victoire | 3-6 6-2 6-3 |
| 2026-02-04 | Cleveland Challenger | Salle | 2e tour | Raphael Perot | Victoire | 7-6(5) 3-6 6-3 |
| 2026-02-06 | Cleveland Challenger | Salle | Quart de finale | Keegan Smith | Défaite | 6-3 6-2 |
| 2026-02-16 | Metepec Challenger | Dur | 1er tour | Tristan Mccormick | Victoire | 6-3 6-7(4) 6-4 |
| 2026-02-18 | Metepec Challenger | Dur | 2e tour | Karl Poling | Victoire | 6-4 7-6(4) |
| 2026-02-20 | Metepec Challenger | Dur | Quart de finale | Rodrigo Pacheco Mendez | Défaite | 6-4 6-2 |
| 2026-02-21 | Abierto Mexicano Telcel | Dur | Qualifications (1er tour) | Patrick Kypson | Défaite | 7-6(3) 6-0 |
| 2026-03-09 | Phoenix Challenger | Dur | Qualifications (1er tour) | Nathan Ponwith | Victoire | 7-5 6-4 |
| 2026-03-10 | Phoenix Challenger | Dur | Qualifications (3e tour) | Marc Polmans | Victoire | 6-1 3-6 6-4 |
| 2026-03-11 | Phoenix Challenger | Dur | 1er tour | Jay Dylan Hara Friend | Défaite | 6-2 4-6 6-3 |
| 2026-03-17 | Morelos Challenger | Dur | 1er tour | Alan Magadan | Victoire | 6-4 6-4 |
| 2026-03-19 | Morelos Challenger | Dur | 2e tour | Michael Mmoh | Défaite | 7-5 6-2 |
| 2026-03-24 | Morelia Challenger | Dur | 1er tour | Andres Martin | Défaite | 6-2 6-2 |
| 2026-03-31 | San Luis Potosi Challenger | Terre | 1er tour | Alan Magadan | Défaite | 6-3 7-6(7) |
| 2026-04-06 | Mexico City Challenger | Terre | 1er tour | Raphael Perot | Victoire | 6-3 6-1 |
| 2026-04-08 | Mexico City Challenger | Terre | 2e tour | James Duckworth | Défaite | 6-3 6-2 |
| 2026-04-12 | Tallahassee Challenger | Terre | Qualifications (1er tour) | Strong Kirchheimer | Victoire | 6-0 6-4 |
| 2026-04-13 | Tallahassee Challenger | Terre | Qualifications (3e tour) | Kilian Feldbausch | Victoire | 6-1 4-6 7-6(2) |
| 2026-04-14 | Tallahassee Challenger | Terre | 1er tour | Alex Rybakov | Défaite | 7-6(3) 6-2 |
| 2026-04-20 | Savannah Challenger | Terre | 1er tour | Daniil Glinka | Victoire | 6-2 6-3 |
| 2026-04-22 | Savannah Challenger | Terre | 2e tour | Nick Hardt | Défaite | 6-2 2-6 6-0 |
| 2026-05-11 | Valencia Challenger | Terre | Qualifications (1er tour) | Mario Mansilla Diez | Victoire | 6-2 6-1 |
| 2026-05-12 | Valencia Challenger | Terre | Qualifications (3e tour) | Alejo Sanchez Quilez | Défaite | 7-5 6-4 |
| 2026-07-05 | Newport Challenger | Gazon | Qualifications (1er tour) | Aidan Mayo | Victoire | 7-6(3) 5-7 6-3 |
| 2026-07-07 | Newport Challenger | Gazon | Qualifications (3e tour) | Garrett Johns | Victoire | 6-4 6-2 |
| 2026-07-09 | Newport Challenger | Gazon | 1er tour | Yibing Wu | Victoire | 6-4 2-6 6-4 |
| 2026-07-10 | Newport Challenger | Gazon | 2e tour | Jacob Fearnley | Défaite | 3-6 6-3 6-2 |
| 2026-07-14 | Pozoblanco Challenger | Dur | 1er tour | Yi Zhou | Défaite | 6-3 3-6 6-4 |
| 2026-07-19 | Bloomfield Hills Challenger | Dur | Qualifications (1er tour) | Leo Vithoontien | Victoire | 4-6 6-1 6-2 |
| 2026-07-20 | Bloomfield Hills Challenger | Dur | Qualifications (3e tour) | Roger Pascual Ferra | Défaite | 6-4 6-4 |
| 2026-07-21 | Bloomfield Hills Challenger | Dur | 1er tour | Alan Magadan | Défaite | 3-6 6-1 7-6(4) |
| 2026-07-25 | Citi Open | Dur | Qualifications (1er tour) | Zachary Svajda | Défaite | 7-5 6-1 |
| 2026-08-12 | Brownsburg Challenger | Dur | 1er tour | Aidan Mayo | Victoire | 6-3 5-7 6-2 |
| 2026-08-13 | Brownsburg Challenger | Dur | 2e tour | Harry Wendelken | Défaite | 2-6 6-4 6-1 |
| 2026-09-15 | Tiburon Challenger | Dur | 1er tour | Darwin Blanch | Défaite | 6-3 2-6 7-6(10) |
| 2026-09-22 | San Diego 2 Challenger | Dur | 1er tour | Colton Smith | Défaite | 6-4 6-2 |
| 2026-09-29 | Columbus Challenger | Salle | 1er tour | James Kent Trotter | Victoire | 6-3 6-2 |
| 2026-10-01 | Columbus Challenger | Salle | 2e tour | Mitchell Krueger | Défaite | 6-2 3-6 6-3 |
| 2026-10-27 | Sioux Falls Challenger | Salle | 1er tour | Murphy Cassone | Victoire | 4-6 6-3 3-0 ret. |
| 2026-10-29 | Sioux Falls Challenger | Salle | 2e tour | Max Hans Rehberg | Défaite | 7-5 6-4 |
| 2026-11-03 | Charlottesville Challenger | Salle | 1er tour | Andres Martin | Victoire | 6-4 6-0 |
| 2026-11-04 | Charlottesville Challenger | Salle | 2e tour | Murphy Cassone | Victoire | 6-2 6-2 |
Face-à-face les plus fréquents
| Adversaire | Victoires | Défaites | Dur (V-D) | Terre (V-D) | Gazon (V-D) | Dernier duel |
|---|---|---|---|---|---|---|
| Mitchell Krueger | 5 | 6 | 4-2 | 1-3 | 0-1 | 2026-10-01 — Columbus Challenger (6-2 3-6 6-3, Défaite) |
| Jeff Wolf | 5 | 5 | 5-5 | 0-0 | 0-0 | 2025-01-31 — Cleveland Challenger (6-1 6-3, Défaite) |
| Tennys Sandgren | 6 | 3 | 5-1 | 1-2 | 0-0 | 2024-04-17 — Tallahassee Challenger (6-2 6-7(5) 6-1, Victoire) |
| Steve Johnson | 5 | 3 | 3-1 | 0-0 | 2-2 | 2022-10-29 — Las Vegas Challenger (6-3 1-6 7-5, Victoire) |
| Darian King | 1 | 6 | 1-5 | 0-1 | 0-0 | 2017-10-06 — Stockton Challenger (6-4 6-4, Défaite) |
| Denis Kudla | 4 | 2 | 3-1 | 1-0 | 0-1 | 2024-04-09 — Sarasota Challenger (6-2 4-6 6-2, Victoire) |
| Donald Young | 2 | 4 | 1-3 | 1-0 | 0-1 | 2021-07-19 — Cary Challenger (4-6 6-4 6-4, Victoire) |
| Kevin King | 4 | 1 | 4-0 | 0-1 | 0-0 | 2020-11-15 — Orlando Challenger (7-6(1) 6-7(7) 6-4, Victoire) |
| Tim Smyczek | 1 | 4 | 1-3 | 0-1 | 0-0 | 2017-11-08 — Knoxville Challenger (7-6(3) 6-2, Défaite) |
| Evan Song | 4 | 1 | 4-1 | 0-0 | 0-0 | 2019-11-14 — Champaign Challenger (6-4 4-6 6-1, Victoire) |
| Michael Mmoh | 0 | 5 | 0-5 | 0-0 | 0-0 | 2026-03-19 — Morelos Challenger (7-5 6-2, Défaite) |
| Ernesto Escobedo | 1 | 4 | 1-4 | 0-0 | 0-0 | 2024-08-05 — Lincoln Challenger (6-3 6-1, Victoire) |
Villes et tournois disputés
| Ville | Pays | Tournoi | Surface | Matchs | Victoires | Défaites | Altitude (m) |
|---|---|---|---|---|---|---|---|
| Delray Beach | United States | Delray Beach Open | Dur | 17 | 6 | 11 | 5 |
| London | United Kingdom | Wimbledon | Gazon | 15 | 7 | 8 | 15 |
| Acapulco | Mexico | Abierto Mexicano Telcel | Dur | 14 | 8 | 6 | 30 |
| Indian Wells | United States | BNP Paribas Open | Dur | 8 | 2 | 6 | 27 |
| New York | United States | U.S. Open | Dur | 8 | 1 | 7 | 10 |
| Melbourne | Australia | Australian Open | Dur | 7 | 3 | 4 | 31 |
| 's-Hertogenbosch | Netherlands | Libema Open | Gazon | 6 | 3 | 3 | 6 |
| Newport | United States | Hall of Fame Open | Gazon | 5 | 1 | 4 | 9 |
| Washington | United States | Citi Open | Dur | 5 | 0 | 5 | 72 |
| Cincinnati | United States | Western & Southern Open | Dur | 5 | 1 | 4 | 242 |
| Paris | France | French Open | Terre | 5 | 1 | 4 | 62 |
| Miami | United States | Miami Open | Dur | 4 | 1 | 3 | 3 |
| Atlanta | United States | Truist Atlanta Open | Dur | 4 | 2 | 2 | 225 |
| Houston | United States | US Men's Clay Court Championship | Terre | 4 | 2 | 2 | 32 |
| Dallas | United States | Dallas Open | Dur | 2 | 1 | 1 | 147 |
| Memphis | United States | U.S. National Indoor Tennis Championships | Dur | 1 | 0 | 1 | 103 |
| Brisbane | Australia | Brisbane International | Dur | 1 | 0 | 1 | 32 |
| Sydney | Australia | Sydney Tennis Classic | Dur | 1 | 0 | 1 | 6 |
| San Diego | United States | San Diego Open | Dur | 1 | 0 | 1 | 422 |
| Winston-Salem | United States | Winston-Salem Open | Dur | 1 | 0 | 1 | 241 |
Historique du classement officiel
| Date du relevé | Rang | Points |
|---|---|---|
| 2026-08-10 | #296 | — |
| 2026-08-24 | #295 | — |
| 2026-08-31 | #297 | — |
| 2026-09-06 | #297 | — |
| 2026-09-08 | #297 | — |
| 2026-09-14 | #291 | — |
| 2026-09-16 | #297 | — |
| 2026-09-21 | #292 | — |
| 2026-09-28 | #294 | — |
| 2026-10-01 | #297 | — |
| 2026-10-02 | #297 | — |
| 2026-10-03 | #297 | — |
| 2026-10-04 | #297 | — |
| 2026-10-05 | #297 | — |
| 2026-10-06 | #297 | — |
| 2026-10-07 | #297 | — |
| 2026-10-08 | #297 | — |
| 2026-10-10 | #297 | — |
| 2026-10-11 | #297 | — |
| 2026-10-12 | #297 | — |
| 2026-10-13 | #297 | — |
| 2026-10-14 | #297 | — |
| 2026-10-15 | #297 | — |
| 2026-10-16 | #297 | — |
| 2026-10-17 | #297 | — |
| 2026-10-18 | #297 | — |
| 2026-10-19 | #297 | — |
| 2026-10-20 | #297 | — |
| 2026-10-21 | #297 | — |
| 2026-10-22 | #297 | — |
| 2026-10-23 | #297 | — |
| 2026-10-24 | #297 | — |
| 2026-10-25 | #297 | — |
| 2026-10-26 | #278 | — |
| 2026-10-27 | #278 | — |
| 2026-10-28 | #284 | — |
| 2026-10-29 | #284 | — |
| 2026-10-30 | #284 | — |
| 2026-10-31 | #284 | — |
| 2026-11-01 | #284 | — |
| 2026-11-02 | #284 | — |
| 2026-11-03 | #284 | — |
| 2026-11-04 | #271 | — |
| 2026-11-05 | #271 | — |
Joueurs du jour
- Carlos Alcaraz (#3)
- Ben Shelton (#4)
- Arthur Fils (#7)
- Taylor Fritz (#12)
- Tommy Paul (#14)
- Sorana Cirstea (#17)
- Alexandra Eala (#20)
- Casper Ruud (#23)
- Lorenzo Musetti (#24)
- Maria Sakkari (#30)
- Tomas Martin Etcheverry (#31)
- Ignacio Buse (#33)
- Xinyu Wang (#39)
- Jan-Lennard Struff (#39)
- Matteo Berrettini (#43)
- Quentin Halys (#46)
- Janice Tjen (#46)
- Luca Van Assche (#47)
- Nuno Borges (#49)
- Zeynep Sonmez (#63)
- Arthur Rinderknech (#68)
- Facundo Diaz Acosta (#72)
- Anna Blinkova (#73)
- Magda Linette (#77)
- Camilo Ugo Carabelli (#81)
- Rinky Hijikata (#83)
- Chak Lam Coleman Wong (#85)
- Tereza Valentova (#88)
- Marcos Giron (#89)
- Antonia Ruzic (#91)
- Leolia Jeanjean (#91)
- Aliaksandra Sasnovich (#101)
- Polina Kudermetova (#105)
- Thiago Seyboth Wild (#109)
- Anastasia Zakharova (#111)
- Mary Stoiana (#114)
- Otto Virtanen (#116)
- Sho Shimabukuro (#118)
- Lucrezia Stefanini (#118)
- Dalibor Svrcina (#119)
- Moyuka Uchijima (#121)
- Simona Waltert (#125)
- Noma Akugue Noha (#127)
- Nishesh Basavareddy (#128)
- Bianca Vanessa Andreescu (#129)
- Clement Chidekh (#131)
- Alexandra Shubladze (#136)
- Laslo Djere (#137)
- Matej Dodig (#138)
- Julia Riera (#141)
- Jurij Rodionov (#142)
- Giovanni Mpetshi Perricard (#145)
- Alexandre Muller (#146)
- Martyna Kubka (#147)
- Elmer Moller (#150)
- Robin Montgomery (#155)
- Mai Hontama (#163)
- Jerome Kym (#164)
- Tom Gentzsch (#165)
- Joao Lucas Reis Da Silva (#177)
- Nicolai Budkov Kjaer (#182)
- Marco Cecchinato (#183)
- Lautaro Midon (#185)
- Elena Pridankina (#190)
- Juan Carlos Prado Angelo (#193)
- Gonzalo Bueno (#198)
- Luisina Giovannini (#204)
- Braden Shick (#205)
- Carole Monnet (#206)
- Maks Kasnikowski (#211)
- Alice Tubello (#219)
- Harold Mayot (#220)
- Kimmer Coppejans (#225)
- Thiago Moura Monteiro (#233)
- Justina Mikulskyte (#234)
- Max Hans Rehberg (#248)
- Charles Broom (#264)
- Sofya Lansere (#266)
- Alastair Gray (#270)
- Aidan Mayo (#285)
- Zongyu Li (#300)
- Carl Emil Overbeck (#301)
- Daniel Milavsky (#307)
- Omar Jasika (#329)
- Vaishnavi Adkar (#365)
- Ksenia Zaytseva (#367)
- Yosuke Watanuki (#375)
- Kasidit Samrej (#409)
- Masamichi Imamura (#437)
- Tiphanie Lemaitre (#437)
- Kristina Kroitor (#512)
- James Kent Trotter (#542)
- Michael Antonius (#619)
- Filip Misolic (#676)
- Maaya Rajeshwaran Revathi (#726)
- Chun-Chien Hou
- Madhurima Sawant
- Toby Samuel (#97)
- Renata Zarazua (#97)
- Leyre Romero Gormaz (#129)
- Andres Andrade (#229)
- Franco Roncadelli (#261)
- Mika Stojsavljevic (#308)
- Jake Delaney (#350)
- Zhibek Kulambayeva (#469)
- Claire Liu (#102)
- Jan Kumstat (#194)
- Gina Feistel (#325)
- Yuta Shimizu (#405)