Stefan Kozlov

Stefan Kozlov (Macedonian: Стефан Козлов, /ˈstɛfɑːn ˈkɒzlɒv/ STEF-ahn KOZ-lov;[1][2] born February 1, 1998) is an American professional tennis player of Russian descent. He is the son of Russian parents and his father Andrei is a tennis coach.[3][4]

For other uses, see Kozlov.
Stefan Kozlov
Kozlov in 2016
Country (sports) United States
ResidencePembroke Pines, Florida, United States
Born (1998-02-01) 1 February 1998
Skopje, Republic of Macedonia
Height1.83 m (6 ft 0 in)
Turned pro2013
PlaysRight-handed (two-handed backhand)
Prize money$741,767
Singles
Career record9–21 (30.0%)
Career titles0
Highest rankingNo. 115 (February 20, 2017)
Current rankingNo. 121 (March 7, 2022)
Grand Slam singles results
Australian Open2R (2022)
French OpenQ2 (2017)
WimbledonQ2 (2017, 2018)
US OpenQ2 (2014)
Doubles
Career record0–5
Career titles0
Highest rankingNo. 180 (June 19, 2017)
Current rankingNo. 312 (November 8, 2021)
Grand Slam doubles results
US Open1R (2014)
Last updated on: February 21, 2022.

In 2013, Kozlov made his ATP World Tour debut as a wildcard in Newport at the age of 15. He reached two junior Grand Slam finals in 2014 and finished the year at No. 3 in the ITF Junior Combined rankings.

Junior career

In 2014, Kozlov reached two junior grand slam finals, where he lost to Alexander Zverev at the Australian Open and Noah Rubin at Wimbledon. This success led him to a career high junior ranking of No. 2.[5] Kozlov also competed at the U18 National Championships, finishing in third place in the singles tournament and winning the doubles tournament with Noah Rubin. With this victory, they earned a wild card into the main draw of the 2014 US Open. He ended the year by winning the Orange Bowl junior tournament.[6]

In 2015, Kozlov reached the final of the U18 National Championships, where he lost to Frances Tiafoe in five sets.

Professional career

Early years

Kozlov made his ATP World Tour debut as a wild card at the Newport tournament in 2013 and lost in the first round. At the age of 16, he defeated his first Top 100 player in Tim Smyczek to reach his first ATP Challenger final in Sacramento, where he lost to Sam Querrey. He has also reached seven career ITF Futures finals and won four of these finals.

2016: First ATP win and quarterfinal and Challenger title

In April, Kozlov reached the final at the Open de Guadeloupe. In June, he won his first career ATP level match as a wild card at the Rosmalen Grass Court Championships in Den Bosch. He reached his first career quarterfinal by defeating Steve Johnson in the second round. Toward the end of the season, Kozlov reached a second Challenger final on the year at Suzhou. He won his first career Challenger event at Columbus.

2021: First three Challenger titles since 2017, return to top 200 since 2018

In September, at the 2021 Columbus Challenger, Kozlov won his first title in four years, defeating Max Purcell in the final in three sets.[7] At the same tournament he won also in doubles partnering Canadian Peter Polansky. He followed this by a final at the 2021 Las Vegas Challenger and a second Challenger title for the season at the 2021 Charlottesville Men's Pro Challenger, defeating another Australian Aleksandar Vukic. As a result, he returned to the top 200 in more than three years at No. 188 on November 8, 2021.[8] He ended the year with winning his third Challenger in Champaign, US. As a result he finished the year ranked World No. 159 on 22 November 2021.

2022: Grand Slam debut and first win, second ATP quarterfinal and return to top 150

At the 2022 Australian Open he made his debut as a wildcard and won his first Grand Slam match against Jiří Veselý. He lost in the second round to 7th seed Matteo Berrettini.[9]

As a qualifier at the 2022 Delray Beach Open, he reached his second career quarterfinal after defeating Emilio Gómez[10] and Steve Johnson.[11]

Ranked No. 130 at the 2022 Abierto Mexicano Telcel in Acapulco, he reached the main draw as lucky loser and defeated Grigor Dimitrov in a stunning upset in three sets after fighting cramps, in the longest match in Acapulco history. It was the biggest win in his career.[12][13]

Performance timeline
Key
W  F  SF QF #R RR Q# DNQ A NH
(W) winner; (F) finalist; (SF) semifinalist; (QF) quarterfinalist; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage; (Q#) qualification round; (DNQ) did not qualify; (A) absent; (NH) not held; (SR) strike rate (events won / competed); (W–L) win–loss record.
To avoid confusion and double counting, these charts are updated at the conclusion of a tournament or when the player's participation has ended.

Singles

Current through the 2022 Miami Open.

Tournament2013201420152016201720182019202020212022SRW–LWin %
Grand Slam tournaments
Australian Open A A A A Q1 Q3 A A A 2R 0 / 1 1–1 50%
French Open A A A A Q2 Q1 A A A 0 / 0 0–0  – 
Wimbledon A A A Q1 Q2 Q2 A NH A 0 / 0 0–0  – 
US Open A Q2 Q1 Q1 Q1 A Q1 A Q1 0 / 0 0–0  – 
Win–loss 0–0 0–0 0–0 0–0 0–0 0–0 0–0 0–0 0–0 1–1 0 / 1 1–1 50%
ATP Tour Masters 1000
Indian Wells Masters A Q1 A A 1R Q1 A NH Q2 Q2 0 / 1 0–1 0%
Miami Open A A A A Q2 Q1 A NH A Q1 0 / 0 0–0  – 
Cincinnati Masters A A Q1 Q2 1R A A A A 0 / 1 0–1 0%
Win–loss 0–0 0–0 0–0 0–0 0–2 0–0 0–0 0–0 0–0 0–0 0 / 2 0–2 0%
Career statistics
Tournaments 1 1 2 2 9 1 0 1 1 3 Career total: 21
Overall win–loss 0–1 0–1 0–2 3–2 2–9 0–1 0–0 0–1 0–1 4–3 0 / 21 9–21 30%
Year-end ranking 1083 467 351 116 167 316 422 371 159

ATP Challenger and ITF Futures finals

Singles: 17 (9–8)
Legend (singles)
ATP Challenger Tour (5–4)
ITF Futures Tour (4–4)
Titles by surface
Hard (9–8)
Clay (0–0)
Grass (0–0)
Result W–L    Date    Tournament Tier Surface Opponent Score
Loss 0–1 Oct 2014 Sacramento, US Challenger Hard Sam Querrey 3–6, 4–6
Loss 0–2 May 2015 USA F15, Orange Park Futures Hard Darian King 2–6, 6–3, 0–6
Loss 0–3 May 2015 Mexico F3, Mexico City Futures Hard Iván Endara 1–6, 6–7(3–7)
Loss 0–4 Oct 2015 Belarus F3, Minsk Futures Hard (i) Dzmitry Zhyrmont 1–6, 4–6
Win 1–4 Oct 2015 Belarus F4, Minsk Futures Hard (i) Dzmitry Zhyrmont 6–1, 7–6(7–1)
Win 2–4 Jan 2016 USA F1, Los Angeles Futures Hard Philip Bester 7–6(9–7), 6–7(3–7), 6–3
Win 3–4 Mar 2016 Canada F2, Sherbrooke Futures Hard (i) Lloyd Glasspool 4–6, 6–4, 6–4
Loss 3–5 Apr 2016 Le Gosier, Guadeloupe Challenger Hard Malek Jaziri 2–6, 4–6
Win 4–5 Apr 2016 USA F13, Little Rock Futures Hard Eric Quigley 6–7(3–7), 6–3, 7–6(12–10)
Loss 4–6 Oct 2016 Suzhou, China Challenger Hard Lu Yen-hsun 0–6, 1–6
Win 5–6 Nov 2016 Columbus, US Challenger Hard (i) Tennys Sandgren 6–1, 2–6, 6–2
Win 6–6 Oct 2017 Las Vegas, US Challenger Hard Liam Broady 3–6, 7–5, 6–4
Loss 6–7 Mar 2019 M25 Calabasas, US World Tennis Tour Hard Alexander Ritschard 2–6, 6–0, 6–7(5–7)
Win 7–7 Sep 2021 Columbus, US Challenger Hard (i) Max Purcell 4–6, 6–2, 6–4
Loss 7–8 Oct 2021 Las Vegas, US Challenger Hard J.J. Wolf 4–6, 4–6
Win 8–8 Nov 2021 Charlottesville, US Challenger Hard (i) Aleksandar Vukic 6–2, 6–3
Win 9–8 Nov 2021 Champaign, US Challenger Hard (i) Aleksandar Vukic 5–7, 6–3, 6–4

Doubles: 12 (6–6)
Legend (doubles)
ATP Challenger Tour (4–4)
ITF Futures Tour (2–2)
Titles by surface
Hard (5–3)
Clay (1–3)
Grass (0–0)
Result W–L    Date    Tournament Tier Surface Partner Opponents Score
Win 1–0 Nov 2013 USA F31, Bradenton Futures Clay Sekou Bangoura Devin McCarthy
Tommy Mylnikov		 6–2, 6–4
Loss 1–1 May 2014 Spain F10, Vic Futures Clay Noah Rubin Sergio Martos Gornés
Pol Toledo Bagué		 2–6, 5–7
Win 2–1 Jan 2015 Maui, US Challenger Hard Jared Donaldson Chase Buchanan
Rhyne Williams		 6–3, 6–4
Loss 2–2 Oct 2015 Croatia F18, Solin Futures Clay Nino Serdarušić Zdeněk Kolář
Tomas Toman		 4–6, 6–2, [6–10]
Win 3–2 Mar 2016 Canada F1, Gatineau Futures Hard (i) Kaichi Uchida Sebastian Fanselow
Adrian Sikora		 7–6(7–5), 6–3
Win 4–2 Jul 2016 Winnetka, US Challenger Hard John-Patrick Smith Sekou Bangoura
David O'Hare		 6–3, 6–3
Loss 4–3 Sep 2016 Cary, US Challenger Hard Austin Krajicek Philip Bester
Peter Polansky		 2–6, 2–6
Loss 4–4 Oct 2016 Ningbo, China Challenger Hard Akira Santillan Jonathan Eysseric
Sergiy Stakhovsky		 4–6, 6–7(4–7)
Loss 4–5 Apr 2017 Sarasota, US Challenger Clay Peter Polansky Scott Lipsky
Jürgen Melzer		 2–6, 4–6
Win 5–5 Jul 2021 Lexington, US Challenger Hard Liam Draxl Alex Rybakov
Reese Stalder		 6–2, 6–7(5–7), [10–7]
Loss 5–6 Sep 2021 Cary, US Challenger Hard Peter Polansky William Blumberg
Max Schnur		 4–6, 6–1, [4–10]
Win 6–6 Sep 2021 Columbus, US Challenger Hard (i) Peter Polansky Andrew Lutschaunig
James Trotter		 7–5, 7–6(7–5)

Junior Grand Slam finals

Singles: 2 (2 runner-ups)
Result Year Tournament Surface Opponent Score
Loss 2014 Australian Open Hard Alexander Zverev 3–6, 0–6
Loss 2014 Wimbledon Grass Noah Rubin 6–4, 4–6, 3–6

Doubles: 1 (1 runner-up)
Outcome Year Championship Surface Partner Opponents Score
Loss 2014 Wimbledon Grass Andrey Rublev Orlando Luz
Marcelo Zormann		 4–6, 6–3, 6–8

References
  1. "The pronunciation by Stefan Kozlov himself". ATPWorldTour.com. Retrieved January 10, 2018.
  2. RacquetComedy (January 27, 2015). "AFULL INTERVIEW: Stefan Kozlov". YouTube. Retrieved January 25, 2018.
  3. Michelle Kaufman (July 9, 2013). "Floridian Kozlov on the rise". Miami Herald. Retrieved October 27, 2017.
  4. https://www.nytimes.com/2014/08/24/magazine/can-us-mens-tennis-rise-again.html
  5. "Stefan Kozlov junior profile". Retrieved October 27, 2017.
  6. Michelle Kaufman (December 14, 2014). "Kozlov wins long-awaited Orange Bowl". Miami Herald. Retrieved October 27, 2017.
  7. https://www.tennis-tourtalk.com/79795/kozlov-returns-to-winners-circle-at-tennis-ohio-championships
  8. https://www.atptour.com/en/news/kozlov-2021-charlottesville-challenger-title
  9. https://www.atptour.com/en/news/berrettini-australian-open-2022-wednesday
  10. https://www.atptour.com/en/news/korda-kokkinakis-delray-2022-tuesday
  11. https://www.palmbeachpost.com/story/sports/tennis/2022/02/16/stefan-kozlov-moves-into-quarterfinals-atp-delray-beach-open/6820757001/
  12. https://www.atptour.com/en/news/kozlov-dimitrov-acapulco-2022-monday
  13. https://www.atptour.com/en/news/stefan-kozlov-jet-ski-nadal-adventure
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