# Quentin Halys

Quentin Halys (French pronunciation:; born 26 October 1996) is a French professional tennis player. Halys has a career-high ATP singles ranking of world No. 61 achieved on 16 January 2023 and a doubles ranking of No. 129 achieved on 3 October 2022. He has won seven singles titles on the ATP Challenger Tour and seven in doubles.

## Junior career

Quentin Halys reached four Junior Grand Slam finals, three in doubles and one in singles. Of the four finals, Halys won the 2014 French Open partnering Benjamin Bonzi. He reached a career high combined (singles and doubles) of World No. 3 on March 31, 2014. He ended his junior career with a 98–44 record on singles and 83–35 on doubles.

### 2010

Quentin played in his first ITF Junior Circuit tournament in 2010 at the G4 Tournoi International de Clermont-Ferrand, as a wildcard. He lost in the first round. He reached his first final later that year, at the G5 International Junior Saint-Cyprien, in doubles. In an all-French final, Halys and Armel Rancezot lost in the super tiebreak against Julien Delaplane and Alexandre Favrot.

### 2011

Starting 2011, Halys entered a 17–match win streak, winning consecutively the 1st and 2nd Qatar ITF Junior Open, breaking through the qualifiers of both tournaments to win his first two singles titles. He also finished runner-up in the 1st tournament doubles. He streak was sniped by Belgian Clement Geens, at AEGON Junior International Nottingham, a 2-week G4 tournament. Quentin would reach the final in both singles and doubles of the 2nd week, but he won the doubles only. He would win another doubles titles in July of that year, at the Leeuwenbergh ITF G4 Junior Championships. Halys finished 2011 by playing for France at the Junior Davis Cup, where his country finished 3rd that year.

### 2012

Starting 2012, Quentin played in all Junior Grand Slams but Wimbledon, where he didn't pass the third round of any of them, in singles. He reached the semifinal at Australian Open doubles. Halys only final that year was at the GA Copa Gerdau, partnering Pedro Cachin, where they lost in straight sets to the partnership of Luke Bambridge and Joshua Ward-Hibbert. He played a second year for his country at the Junior Davis Cup, this time finishing in the fourth place.

### 2013

In 2013, Halys reached four finals in doubles, including the US Open final, where he lost to Kamil Majchrzak and Martin Redlicki, in partnership with Frederico Ferreira Silva. All other finals were at G1 tournaments, winning only at the 35° Torneo International Citta Di Santa Croce, partnering Benjamin Bonzi. In singles, he lost in the finals of the B1 European Junior Championships to Karen Khachanov.
Halys saw much success ahead of 2014, reaching 7 finals with four titles in doubles and one in singles.

### 2014

Partnering Johan Sébastien Tatlot, the pair reached the final of the Australian Open, where they lost in straight sets. The partnership would win the GA Porto Alegre Junior Championships (the successor of the Copa Gerdau) in March and the B1 European Junior Championships in July.
Partnering Benjamin Bonzi, the French pair won the French Open, winning in straight sets. Quentin also won the G1 Canadian Open Junior Championships in partnership with Akira Santillan, winning only two matches to win the title, as the pair received two walkovers in the semifinals and the final. Quentin reached also the US Open in singles, losing to Omar Jasika in three sets. Earlier in July, he defeated countryman Corentin Denolly to win the B1 European Junior Championships, his last singles title in junior.

## Professional career
### 2015–2017: Grand Slam debut & first two wins, first Challenger title

Halys made his Grand Slam debut at the 2015 French Open as a wildcard.
He also entered as a wildcard in the 2016 Australian Open main draw where he defeated Ivan Dodig. He lost to the top seed and eventual champion Novak Djokovic in the second round.
Again as a wildcard, he recorded his second Major win and first win on clay at the 2016 French Open over Chung Hyeon in the first round.

### 2021: US Open debut

He reached the main draw for the third time at the 2021 Australian Open as a qualifier.
At the 2021 US Open Halys also qualified for the first time at this Major in 5 attempts. He lost in the first round to Dominik Koepfer in five sets.

### 2022: Two more Challenger titles, Masters & top 65 debut

January through March 2022, he won two Challenger titles at the 2022 Teréga Open Pau–Pyrénées and 2022 Play In Challenger in Lille, France and reached two more finals. He reached the top 100 on 9 May 2022 after a quarterfinal showing at the 2022 Open du Pays d'Aix Challenger. At the 2022 French Open as a direct entry, he lost to 23rd seed John Isner in four tight sets.
On his debut at the 2022 Wimbledon Championships he won his first match at this Major defeating his compatriot Benoît Paire. He reached the top 75 at world No. 74 on 25 July 2022.
He made his Masters 1000 debut after qualifying for the 2022 Rolex Paris Masters and finished the year ranked world No. 64 in singles.

### 2023: First Masters fourth round & ATP semifinal, Major third round

Halys reached the quarterfinals of an ATP tournament for the first time in his career in Auckland, after beating Alex Molčan and Ben Shelton. He lost to Jenson Brooksby in the quarterfinals.
On his debut at the 2023 Miami Open he reached the third round of a Masters 1000 for the first time having never won a match in his career at this level defeating Pedro Martinez and 15th seed Alex de Minaur in a three hours and 20 minutes match with three tiebreaks. Next he defeated Mackenzie McDonald to reach the fourth round for the first time at the Masters level. He lost to Daniil Medvedev in 70 minutes in straight sets.
In 2023 Estoril Open he reached his first ATP semifinal having won one ATP match on clay in his career (at the 2016 Rolland Garros), defeating Nuno Borges, fourth seed Roberto Bautista Agut and Dominic Thiem. He lost to top seed and eventual champion Casper Ruud in three sets.
Halys reached the third round at the 2023 Wimbledon Championships with wins over Dan Evans and Aleksandar Vukic for the first time at a Major.

### 2024: First ATP final, back to top 100

On 24 June 2024, Halys fell to world No. 223, dropping more than 150 ranking positions from his career-high in January 2023. The same week, he qualified for the 2024 Wimbledon Championships and reached a consecutive third round with wins over Christopher Eubanks and 21st seed Karen Khachanov before losing to fifteenth seed Holger Rune in five sets in the third round.
In July, Halys reached his first final on the ATP Tour in Gstaad as a qualifier. As a result he returned to the top 125 in the rankings on 22 July 2024. He eventually lost in the final to sixth seed Matteo Berrettini.
In August, he qualified for the US Open but lost in the first round to Otto Virtanen in four sets. Following a third Challenger final showing at the Rennes Challenger, he returned to the top 100 on 26 September 2024, despite losing to Jacob Fearnley in the championship match.

### 2025: First ATP 500 semifinal & top 10 win, top 60

At the 2025 Dubai Tennis Championships Halys qualified for the main draw and recorded his first win at the ATP 500-level defeating Doha champion, world No. 9 and third seed Andrey Rublev. It was the biggest win by ranking and first against a top 10 player in his career. Next he defeated Roberto Bautista Agut to reach his first ATP 500 quarterfinal and returned to the top 65 in the singles rankings. He reached his first ATP 500 semifinal having never won a match at the 500-level before defeating lucky loser Luca Nardi and reached a new career-high ranking in the top 60 on 3 March 2025.

## Performance timelines

Key :
| W | F | SF | QF | #R | RR | Q# | DNQ | A | NH |

### Singles

Current after the 2025 Dubai Tennis Championships.
| Tournament | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win% |
| Grand Slam tournaments |||||||||||||||||
| Australian Open | A | A | A | 2R | 1R | 1R | Q3 | 1R | 1R | Q2 | 1R | 2R | 2R | 0 / 8 | 3–8 | 27% |
| French Open | Q2 | Q1 | 1R | 2R | 1R | Q1 | 1R | 1R | Q3 | 1R | 1R | Q3 | | 0 / 7 | 1–7 | 13% |
| Wimbledon | A | A | A | Q3 | Q2 | Q1 | Q2 | NH | Q1 | 2R | 3R | 3R | | 0 / 3 | 5–3 | 63% |
| US Open | A | A | A | Q2 | Q1 | Q1 | Q1 | A | 1R | 1R | 1R | 1R | | 0 / 4 | 0–4 | 0% |
| Win–loss | 0–0 | 0–0 | 0–1 | 2–2 | 0–2 | 0–1 | 0–1 | 0–2 | 0–2 | 1–3 | 2–4 | 3–3 | 1–1 | 0 / 22 | 9–22 | 29% |
| Masters 1000 tournaments |||||||||||||||||
| Indian Wells | A | A | A | A | A | A | A | NH | A | A | 1R | Q1 | | 0 / 1 | 0–1 | 0% |
| Miami Open | A | A | A | A | Q1 | A | A | NH | A | A | 4R | Q1 | | 0 / 1 | 3–1 | 75% |
| Madrid Open | A | A | A | A | A | A | A | NH | A | A | 2R | Q1 | | 0 / 1 | 1–1 | 50% |
| Canadian Open | A | A | A | A | A | A | A | NH | A | Q2 | A | A | | 0 / 0 | – | – |
| Cincinnati | A | A | A | Q1 | A | A | A | NH | A | A | A | A | | 0 / 0 | – | – |
| Shanghai | A | A | A | A | A | A | A | NH | NH | NH | 2R | A | | 0 / 1 | 1–1 | 50% |
| Paris Masters | A | A | Q1 | Q1 | Q1 | A | A | A | A | 1R | Q1 | 1R | | 0 / 2 | 0–2 | 0% |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–1 | 5–4 | 0–1 | | 0 / 6 | 5–6 | 45% |
| Year-end ranking | | | | | | | 220 | 203 | 151 | 64 | 100 | 72 | | | | |

### Doubles

| Tournament | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win% |
| Grand Slam tournaments |||||||||||||||
| Australian Open | A | A | A | A | A | A | A | A | 1R | 2R | A | 0 / 2 | 1–1 | 50% |
| French Open | 1R | 2R | 2R | A | 3R | 1R | 1R | 1R | A | 1R | | 0 / 8 | 4–8 | 33% |
| Wimbledon | A | 1R | A | A | A | NH | A | 1R | 1R | A | | 0 / 3 | 0–3 | 0% |
| US Open | A | A | A | A | A | A | A | 3R | 2R | A | | 0 / 2 | 3–2 | 60% |
| Win–loss | 0–1 | 1–2 | 1–1 | 0–0 | 2–1 | 0–1 | 0–1 | 2–3 | 1–3 | 1–1 | 0–0 | 0 / 15 | 8–14 | 36% |

## ATP Tour finals
### Singles: 1 (1 runner-up)

* Legend
* Grand Slam tournaments (0–0)
* ATP Finals (0–0)
* ATP Masters 1000 (0–0)
* ATP 500 (0–0)
* ATP 250 (0–1)
* Finals by surface
* Hard (0–0)
* Clay (0–1)
* Grass (0–0)
* Finals by setting
* Outdoor (0–1)
* Indoor (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Jul 2024 | Swiss Open, Switzerland | ATP 250 | Clay | Matteo Berrettini | 3–6, 1–6 |

## ATP Challenger and ITF Futures/World Tennis Tour finals
### Singles: 27 (12 titles, 15 runner-ups)

* Legend
* ATP Challenger Tour (7–12)
* ITF Futures/WTT (5–3)
* Finals by surface
* Hard (8–10)
* Clay (3–4)
* Grass (0–0)
* Carpet (1–1)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Oct 2014 | Greece F9, Heraklion | Futures | Hard | Ricardo Rodríguez | 6–3, 6–2 |
| Loss | 1–1 | Feb 2015 | Italy F1, Sondrio | Futures | Hard (i) | Laurynas Grigelis | 7–6$^{(9–7)}$, 3–6, 5–7 |
| Loss | 1–2 | Mar 2015 | Italy F2, Trento | Futures | Carpet (i) | Philip Bester | 6–3, 5–7, 3–6 |
| Win | 2–2 | Mar 2015 | France F6, Poitiers | Futures | Hard (i) | David Guez | 7–5, 6–1 |
| Win | 3–2 | Mar 2015 | Great Britain F5, Shrewsbury | Futures | Hard (i) | Daniel Cox | 6–4, 3–6, 6–3 |
| Win | 4–2 | Aug 2015 | Italy F24, Piombino | Futures | Hard | Edoardo Eremin | 6–3, 6–4 |
| Win | 5–2 | Sep 2015 | Great Britain F8, Roehampton | Futures | Hard | Daniel Evans | 6–1, 6–7$^{(5–7)}$, 7–5 |
| Win | 6–2 | Apr 2016 | Tallahassee, USA | Challenger | Clay | Frances Tiafoe | 6–7$^{(6–8)}$, 6–4, 6–2 |
| Loss | 6–3 | Oct 2016 | Fairfield, USA | Challenger | Hard | Santiago Giraldo | 6–4, 4–6, 2–6 |
| Loss | 6–4 | Feb 2017 | Bergamo, Italy | Challenger | Hard (i) | Jerzy Janowicz | 4–6, 4–6 |
| Loss | 6–5 | Apr 2017 | Anning, China, P.R. | Challenger | Clay | Janko Tipsarević | 7–6$^{(7–5)}$, 3–6, 4–6 |
| Win | 7–5 | Feb 2018 | Quimper, France | Challenger | Hard (i) | Alexey Vatutin | 6–3, 7–6$^{(7–1)}$ |
| Win | 8–5 | Apr 2018 | Nanchang, China, P.R. | Challenger | Clay (i) | Calvin Hemery | 6–3, 6–2 |
| Loss | 8–6 | Sep 2018 | Istanbul, Turkey | Challenger | Hard | Corentin Moutet | 3–6, 4–6 |
| Loss | 8–7 | May 2019 | Aix-en-Provence, France | Challenger | Clay | Pablo Cuevas | 5–7, 6–3, 2–6 |
| Loss | 8–8 | Oct 2019 | M25+H Nevers, France | WTT | Hard | Arthur Reymond | 6–3, 6–7$^{(3–7)}$, 4–6 |
| Loss | 8–9 | Jun 2021 | Forlì, Italy | Challenger | Clay | Mats Moraing | 6–3, 1–6, 5–7 |
| Loss | 8–10 | Jul 2021 | Porto, Portugal | Challenger | Hard | Altuğ Çelikbilek | 2-6, 1-6 |
| Loss | 8–11 | Jan 2022 | Forlì, Italy | Challenger | Hard (i) | Pavel Kotov | 5-7, 7-6$^{(7-5)}$, 3-6 |
| Win | 9–11 | Feb 2022 | Pau, France | Challenger | Hard (i) | Vasek Pospisil | 4–6, 6–4, 6–3 |
| Loss | 9–12 | Feb 2022 | Turin, Italy | Challenger | Hard (i) | Mats Moraing | 6-7$^{(11-13)}$, 3-6 |
| Win | 10–12 | Mar 2022 | Lille, France | Challenger | Hard (i) | Ričardas Berankis | 4–6, 7–6$^{(7–4)}$, 6–4 |
| Loss | 10–13 | May 2022 | Bordeaux, France | Challenger | Clay | Alexei Popyrin | 6-2, 6-7$^{(5-7)}$, 6-7$^{(4-7)}$ |
| Loss | 10–14 | Oct 2022 | Orléans, France | Challenger | Hard (i) | Grégoire Barrère | 6–4, 3–6, 4–6 |
| Win | 11–14 | Oct 2022 | Ismaning, Germany | Challenger | Carpet (i) | Max Hans Rehberg | 7–6$^{(8–6)}$, 6–3 |
| Win | 12–14 | Jun 2023 | Blois, France | Challenger | Clay | Kyrian Jacquet | 4-6, 6-2, 2-0 ret. |
| Loss | 12–15 | Sep 2024 | Rennes, France | Challenger | Hard (i) | Jacob Fearnley | 6–0, 6–7$^{(5–7)}$, 3–6 |

### Doubles: 18 (11 titles, 7 runner-ups)

* Legend
* ATP Challenger Tour (8–4)
* ITF Futures/WTT (3–3)
* Finals by surface
* Hard (7–5)
* Clay (3–2)
* Grass (0–0)
* Carpet (1–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Feb 2014 | Great Britain F5, Nottingham | Futures | Hard (i) | Rémi Boutillier | Liam Broady James Cluskey | 6–2, 0–6, [10–8] |
| Win | 2–0 | Jul 2014 | France F14, Bourg-en-Bresse | Futures | Clay | Maxime Hamou | Maxime Forcin Ugo Nastasi | 2–6, 6–2, [10–8] |
| Win | 3–0 | Oct 2014 | Greece F9, Heraklion | Futures | Hard | Benjamin Bonzi | Mauricio Astorga Alberto Rojas-Maldonado | 6–2, 6–4 |
| Loss | 3–1 | Nov 2014 | Kuwait F1, Meshref | Futures | Hard | Calvin Hemery | Juan Lizariturry Mark Vervoort | 4–6, 6–7$^{(4–7)}$ |
| Loss | 3–2 | Jan 2015 | France F1, Bagnoles-de-l'Orne | Futures | Clay (i) | Alexandre Sidorenko | Dorian Descloix Gleb Sakharov | 4–6, 2–6 |
| Loss | 3–3 | Oct 2016 | Tiburon, USA | Challenger | Hard | Dennis Novikov | Matt Reid John-Patrick Smith | 1–6, 2–6 |
| Win | 4–3 | Jan 2017 | Nouméa, New Caledonia | Challenger | Hard | Tristan Lamasine | Adrián Menéndez Maceiras Stefano Napolitano | 7–6$^{(11–9)}$, 6–1 |
| Win | 5–3 | Jul 2017 | Recanati, Italy | Challenger | Hard | Jonathan Eysseric | Julian Ocleppo Andrea Vavassori | 6–7$^{(3–7)}$, 6–4, [12–10] |
| Loss | 5–4 | Nov 2018 | Mouilleron-le-Captif, France | Challenger | Hard (i) | Romain Arneodo | Sander Gillé Joran Vliegen | 3–6, 6–4, [2–10] |
| Win | 6–4 | May 2019 | Bordeaux, France | Challenger | Clay | Grégoire Barrère | Romain Arneodo Hugo Nys | 6–4, 6–1 |
| Loss | 6–5 | Oct 2019 | M25+H Nevers, France | WTT | Hard | Matteo Martineau | Dan Added Albano Olivetti | 4–6, 5–7 |
| Win | 7–5 | Oct 2019 | Ismaning, Germany | Challenger | Carpet (i) | Tristan Lamasine | Maxime Cressy James Cerretani | 6–3, 7–5 |
| Win | 8–5 | Mar 2021 | Biella, Italy | Challenger | Hard (i) | Tristan Lamasine | Denys Molchanov Sergiy Stakhovsky | 6-1, 2-0 ret. |
| Win | 9–5 | Oct 2021 | Mouilleron-le-Captif, France | Challenger | Hard (i) | Jonathan Eysseric | David Pel Aisam-ul-Haq Qureshi | 4–6, 7–6$^{(7–5)}$, [10–8] |
| Win | 10–5 | Feb 2022 | Cherbourg, France | Challenger | Hard (i) | Jonathan Eysseric | Hendrik Jebens Niklas Schell | 7–6$^{(8–6)}$, 6–2 |
| Loss | 10–6 | Mar 2022 | Lille, France | Challenger | Hard (i) | Jonathan Eysseric | Viktor Durasovic Patrik Niklas-Salminen | 5–7, 6–7$^{(1–7)}$ |
| Loss | 10–7 | May 2024 | Bordeaux, France | Challenger | Clay | Nicolas Mahut | Julian Cash Robert Galloway | 3–6, 6–7$^{(2–7)}$ |
| Win | 11–7 | Jun 2024 | Zagreb, Croatia | Challenger | Clay | Jonathan Eysseric | Mircea-Alexandru Jecan Henrique Rocha | 6–4, 6–4 |

## Junior Grand Slam finals
### Singles: 1 (1 runner-up)

| Result | Year | Tournament | Surface | Opponent | Score |
| Loss | 2014 | US Open | Hard | Omar Jasika | 6–2, 5–7, 1–6 |

### Doubles: 3 (1 title, 2 runner-ups)

| Result | Year | Tournament | Surface | Partner | Opponents | Score |
| Loss | 2013 | US Open | Hard | Frederico Ferreira Silva | Kamil Majchrzak Martin Redlicki | 3–6, 4–6 |
| Loss | 2014 | Australian Open | Hard | Johan Tatlot | Lucas Miedler Bradley Mousley | 4–6, 3–6 |
| Win | 2014 | French Open | Clay | Benjamin Bonzi | Renta Tokuda Jumpei Yamasaki | 6–4, 3–6. [10–3] |

## ITF's Junior Circuit
### Singles: 6 (4 titles, 2 runner-ups)

* Category
* Category GA (0–1)
* Category G4 (1–0)
* Category G5 (2–0)
* Category GB1 (1–1)
* Surface
* Clay (1–1)
* Hard (3–1)
* Setting
* Outdoors (4–2)
| Result | W–L | Date | Tournament | Category | Surface | Opponent | Score |
| Win | 1–0 | Feb 2011 | 1st Qatar ITF Junior Open, Qatar | Grade 5 | Hard | Johan Skattum | 6–3, 6–0 |
| Win | 2–0 | Apr 2011 | 2nd Qatar ITF Junior Open, Qatar | Grade 5 | Hard | Maxime Hamou | 6–7$^{(6–8)}$, 6–4, 6–2 |
| Win | 3–0 | Apr 2011 | AEGON Junior International Nottingham (2nd week), UK | Grade 4 | Hard | Max de Vroome | 6–1, 5–7, 6–1 |
| Loss | 3–1 | Jul 2013 | European Junior Championships, Switzerland | Grade B1 | Clay | Karen Khachanov | 6–4, 3–6, 4–6 |
| Win | 4–1 | Jul 2014 | European Junior Championships, Switzerland | Grade B1 | Clay | Corentin Denolly | 6–4, 7–5 |
| Loss | 4–2 | Sep 2014 | US Open, United States | Grade A | Hard | Omar Jasika | 6–2, 5–7, 1–6 |

### Doubles: 14 (7 titles, 7 runner-ups)

* Category
* Category GA (2–3)
* Category G1 (2–2)
* Category G4 (2–0)
* Category G5 (0–2)
* Category GB1 (1–0)
* Surface
* Clay (5–3)
* Hard (2–4)
* Setting
* Outdoors (7–6)
* Indoors(i) (0–1)
| Outcome | Date | Category | Tournament | Surface | Partner | Opponents | Score |
| Runner-up | 7 November 2010 | Grade 5 | International Junior Saint-Cyprien, France | Hard (i) | Armel Rancezot | Julien Delaplane Alexandre Favrot | 6–7$^{(2–7)}$, 6–4, [5–10] |
| Runner-up | 4 February 2011 | Grade 5 | 1st Qatar ITF Junior Open, Qatar | Hard | Florian Lakat | Chun Hun Wong Pak Long Yeung | 1–6, 4–6 |
| Winner | 18 April 2011 | Grade 4 | AEGON Junior International Nottingham (2nd week), United Kingdom | Hard | Maxime Hamou | Toby Martin Toby Mitchell | 6–3, 7–6$^{(7–5)}$ |
| Winner | 10 July 2011 | Grade 4 | Leeuwenbergh ITF Junior Championships, Netherlands | Clay | Maxime Hamou | Harry Bourchier Henrique Sousa | 3–6, 6–2, 10–5 |
| Runner-up | 25 March 2012 | Grade A | 29th Copa Gerdau, Brazil | Clay | Pedro Cachin | Luke Bambridge Joshua Ward-Hibbert | 5–7, 5–7 |
| Runner-up | 17 March 2013 | Grade 1 | 43rd Banana Bowl, Brazil | Clay | Pedro Cachin | Stefan Kozlov Spencer Papa | 6–4, 3–6, [7–10] |
| Runner-up | 28 April 2013 | Grade 1 | 18ème Open International Junior, France | Clay | Alexander Muller | Johannes Härteis Hannes Wagner | 2–6, 4–6 |
| Winner | 18 May 2013 | Grade 1 | 35° Torneo International Citta Di Santa Croce, Italy | Clay | Benjamin Bonzi | Rafael Matos Marcelo Zormann | 6–2, 6–2 |
| Runner-up | 9 September 2013 | Grade A | US Open, United States | Hard | Frederico Ferreira Silva | Kamil Majchrzak Martin Redlicki | 3–6, 4–6 |
| Runner-up | 25 January 2014 | Grade A | Australian Open, Australia | Hard | Johan Sébastien Tatlot | Lucas Miedler Bradley Mousley | 4–6, 3–6 |
| Winner | 30 March 2014 | Grade A | Porto Alegre Junior Championships, Brazil | Clay | Johan Sébastien Tatlot | Renta Tokuda Jumpei Yamasaki | 6–4, 3–6, [10–3] |
| Winner | 7 June 2014 | Grade A | French Open, France | Clay | Benjamin Bonzi | Lucas Miedler Akira Santillan | 6–4, 6–3 |
| Winner | 27 July 2014 | Grade B1 | European Junior Championships, Switzerland | Clay | Johan Sébastien Tatlot | Tallon Griekspoor Tim van Rijthoven | 6–2, 6–4 |
| Winner | 30 August 2014 | Grade 1 | Canadian Open Junior Championships, Canada | Hard | Akira Santillan | Naoki Nakagawa Tim van Rijthoven | Walkover |

## Record against top-10 players

Halys's record against those who have been ranked in the top 10, with active players in boldface. Only ATP Tour main draw matches are considered:
| Player | Years | MP | Record | Win% | Hard | Clay | Grass | Last Match |
| Number 1 ranked players | | | | | | | | |
| Daniil Medvedev | 2023 | 1 | 0–1 | 0% | 0–1 | – | – | Lost (4–6, 2–6) at 2023 Miami |
| Rafael Nadal | 2015 | 1 | 0–1 | 0% | – | 0–1 | – | Lost (3–6, 3–6, 4–6) at 2015 Roland Garros |
| Jannik Sinner | 2023 | 1 | 0–1 | 0% | – | – | 0–1 | Lost (6–3, 2–6, 3–6, 4–6) at 2023 Wimbledon |
| Novak Djokovic | 2016–2023 | 2 | 0–2 | 0% | 0–1 | 0–1 | – | Lost (6–7$^{(3–7)}$, 6–7$^{(5–7)}$) at 2023 Adelaide 1 |
| Number 2 ranked players | | | | | | | | |
| Casper Ruud | 2018–2023 | 2 | 0–2 | 0% | 0–1 | 0–1 | – | Lost (4–6, 6–3, 6–7$^{(2–7)}$) at 2023 Estoril |
| Number 3 ranked players | | | | | | | | |
| Dominic Thiem | 2023 | 1 | 1–0 | 100% | – | 1–0 | – | Won (6–1, 6–4) at 2023 Estoril |
| Juan Martín del Potro | 2017 | 1 | 0–1 | 0% | – | 0–1 | – | Lost (5–7, 4–6) at 2017 Lyon |
| Grigor Dimitrov | 2024 | 1 | 0–1 | 0% | 0–1 | – | – | Lost (6–7$^{(1–7)}$, 3–6) at 2024 Stockholm |
| Stefanos Tsitsipas | 2023 | 1 | 0–1 | 0% | 0–1 | – | – | Lost (3–6, 4–6, 6–7$^{(6–8)}$) at 2023 Australian Open |
| Number 4 ranked players | | | | | | | | |
| Kei Nishikori | 2019 | 1 | 0–1 | 0% | – | 0–1 | – | Lost (2–6, 3–6, 4–6) at 2019 Roland Garros |
| Holger Rune | 2024 | 1 | 0–1 | 0% | – | – | 0–1 | Lost (6–1, 7–6$^{(7–4)}$, 4–6, 6–7$^{(4–7)}$, 1–6) at 2024 Wimbledon |
| Number 5 ranked players | | | | | | | | |
| Andrey Rublev | 2023–2025 | 2 | 1–1 | 50% | 1–1 | – | – | Won (3–6, 6–4, 7–6$^{(7–5)}$) at 2025 Dubai |
| Number 6 ranked players | | | | | | | | |
| Alex de Minaur | 2023 | 1 | 1–0 | 100% | 1–0 | – | – | Won (6–7$^{(5–7)}$, 7–6$^{(7–3)}$, 7–6$^{(10–8)}$) at 2023 Miami |
| Matteo Berrettini | 2024 | 1 | 0–1 | 0% | – | 0–1 | – | Lost (3–6, 1–6) at 2024 Gstaad |
| Gaël Monfils | 2024 | 1 | 0–1 | 0% | 0–1 | – | – | Lost (6–7$^{(5–7)}$, 3–6) at 2024 Vienna |
| Félix Auger-Aliassime | 2024–2025 | 3 | 0–3 | 0% | 0–3 | – | – | Lost (7–5, 4–6, 3–6) at 2025 Dubai |
| Number 7 ranked players | | | | | | | | |
| Richard Gasquet | 2024 | 1 | 1–0 | 100% | – | 1–0 | – | Won (7–6$^{(7–4)}$, 7–6$^{(7–5)}$) at 2024 Gstaad |
| David Goffin | 2023 | 1 | 0–1 | 0% | 0–1 | – | – | Lost (4–6, 1–6) at 2023 Antwerp |
| Number 8 ranked players | | | | | | | | |
| Karen Khachanov | 2024 | 1 | 1–0 | 100% | – | – | 1–0 | Won (4–6, 6–3, 3–6, 6–3, 6–4) at 2024 Wimbledon |
| John Isner | 2022 | 1 | 0–1 | 0% | – | 0–1 | – | Lost (6–7$^{(3–7)}$, 6–4, 6–7$^{(1–7)}$, 6–7$^{(6–8)}$) at 2022 Roland Garros |
| Number 9 ranked players | | | | | | | | |
| Roberto Bautista Agut | 2023 | 2 | 1–1 | 50% | – | 1–1 | – | Lost (6–4, 6–7$^{(5–7)}$, 3–6) at 2023 Madrid |
| Fabio Fognini | 2018 | 1 | 0–1 | 0% | 0–1 | – | – | Lost (6–2, 4–6, 0–6) at 2018 Los Cabos |
| Number 10 ranked players | | | | | | | | |
| Ernests Gulbis | 2016 | 1 | 0–1 | 0% | 0–1 | – | – | Lost (4–6, 3–6) at 2016 Montpellier |
| Total | 2015–2025 | 29 | 6–23 | 21% | 2–13 (13%) | 3–8 (27%) | 1–2 (33%) | * Statistics correct as of 28 February 2025. |

## Wins over top 10 players

* Halys has a 1–10 (9.09%) record against players who were, at the time the match was played, ranked in the top 10.
| Season | 2025 | Total |
| Wins | 1 | 1 |
| # | Player | Rk | Event | Surface | Rd | Score | Rk | Ref |
| 2025 |||||||||
| 1. | Andrey Rublev | 9 | Dubai Tennis Championships, UAE | Hard | 1R | 3–6, 6–4, 7–6$^{(7–5)}$ | 77 | |
* Key: (Rk) first use, opponent rank; (Rd) round; (Rk) 2nd use, player rank; (Ref) reference; (F) final; (SF) semifinal; (QF) quarterfinal; (#R) rounds 4, 3, 2, 1; (RR) round-robin stage