# Courtney John Lock

Courtney John Lock (born 18 October 1996) is a Zimbabwean tennis player. He has a career high ATP doubles ranking of No. 189 achieved on 18 November 2024. Lock represents Zimbabwe at the Davis Cup alongside his brother Benjamin Lock. He has won 19 doubles titles on the ITF professional circuit.

## Career

Lock received his education at the University of Nevada, Las Vegas (USA).
He won his first Davis Cup doubles match in a 2015 Davis Cup tie against Moldova.
In June 2024, the Lock brothers won their first Challenger title together in Blois, France making it the first team from Zimbabwe to win an ATP Challenger or tour-level event since Wayne Black and Kevin Ullyett at the 2005 Australian Open.

## Future and Challenger finals
### Doubles: 33 (20–13)

* Legend
* ATP Challengers (1–2)
* ITF Futures/World Tennis Tour (19–11)
* Titles by surface
* Hard (14–10)
* Clay (6–3)
* Grass (0–0)
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Loss | 0–1 | Jul 2015 | Zimbabwe F3, Harare | Futures | Hard | Benjamin Lock | Evan King Anderson Reed | 6–4, 4–6, [7–10] |
| Win | 1–1 | Jun 2016 | Mozambique F2, Maputo | Futures | Hard | Benjamin Lock | John Lamble Bernardo Saraiva | 6–4, 6–3 |
| Loss | 1–2 | Jun 2016 | Zimbabwe F1, Harare | Futures | Hard | Benjamin Lock | Hugo Nys Andrea Vavassori | 3–6, 3–6 |
| Loss | 1–3 | Jul 2016 | Zimbabwe F3, Harare | Futures | Hard | Benjamin Lock | Hugo Nys Vishnu Vardhan | 7–6$^{(7–5)}$, 4–6, [5–10] |
| Win | 2–3 | Jul 2016 | Egypt F16, Sharm El Sheikh | Futures | Hard | Benjamin Lock | Jarmere Jenkins Anderson Reed | 3–6, 6–3, [10–8] |
| Win | 3–3 | Jun 2018 | Zimbabwe F1, Harare | Futures | Hard | Benjamin Lock | Anirudh Chandrasekar Vignesh Peranamallur | 6–3, 6–0 |
| Win | 4–3 | Jun 2018 | Zimbabwe F2, Harare | Futures | Hard | Benjamin Lock | Connor Farren Milen Ianakiev | 6–2, 6–3 |
| Win | 5–3 | Jun 2018 | Zimbabwe F3, Harare | Futures | Hard | Benjamin Lock | Jordan Parker Isaac Stoute | Walkover |
| Win | 6–3 | Oct 2018 | Nigeria F5, Lagos | Futures | Hard | Benjamin Lock | Tom Jomby Alexis Klégou | 3–6, 6–4, [10–7] |
| Win | 7–3 | Nov 2018 | Mozambique F1, Maputo | Futures | Hard | Benjamin Lock | Luke Jacob Gamble Tyler Lu | 5–7, 6–3, [10–4] |
| Loss | 7–4 | Nov 2018 | Mozambique F2, Maputo | Futures | Hard | Benjamin Lock | Luke Jacob Gamble Tyler Lu | 7–5, 3–6, [6–10] |
| Loss | 7–5 | Dec 2018 | South Africa F2, Stellenbosch | Futures | Hard | Benjamin Lock | Gábor Borsos Péter Nagy | 6–7$^{(1–7)}$, 2–6 |
| Loss | 7–6 | Feb 2019 | M15 Sharm El Sheikh, Egypt | World Tennis Tour | Hard | Benjamin Lock | Enrico Dalla Valle Francesco Forti | 6–7$^{(5–7)}$, 7–6$^{(7–5)}$, [7–10] |
| Loss | 7–7 | Feb 2019 | M15 Sharm El Sheikh, Egypt | World Tennis Tour | Hard | Benjamin Lock | Michael Geerts Vladyslav Manafov | 3–6, 6–7$^{(10–12)}$ |
| Win | 8–7 | Feb 2019 | M15 Sharm El Sheikh, Egypt | World Tennis Tour | Hard | Benjamin Lock | Ryan Nijboer Pablo Vivero González | 7–6$^{(7–4)}$, 6–7$^{(5–7)}$, [11–9] |
| Loss | 8–8 | Apr 2019 | M25+H Abuja, Nigeria | World Tennis Tour | Hard | Benjamin Lock | Sadio Doumbia Fabien Reboul | 7–6$^{(7–5)}$, 3–6, [7–10] |
| Win | 9–8 | May 2019 | M15 Accra, Ghana | World Tennis Tour | Hard | Benjamin Lock | David Anthony Hale Niklas Johansson | 6–4, 6–1 |
| Win | 10–8 | Jun 2019 | M15 Harare, Zimbabwe | World Tennis Tour | Hard | Benjamin Lock | Martin Beran Joshua Paris | 6–3, 6–0 |
| Win | 11–8 | Sep 2019 | M15 Johannesburg, South Africa | World Tennis Tour | Hard | Benjamin Lock | Alexander Donski David Pichler | 6–3, 6–4 |
| Loss | 11–9 | Oct 2019 | M25+H Lagos, Nigeria | World Tennis Tour | Hard | Benjamin Lock | Aziz Dougaz Skander Mansouri | 6–7$^{(4–7)}$, 3–6 |
| Win | 12–9 | Oct 2019 | M25+H Lagos, Nigeria | World Tennis Tour | Hard | Benjamin Lock | William Bushamuka Aryan Goveas | 6–4, 6–4 |
| Win | 13–9 | Nov 2019 | M15 Maputo, Mozambique | World Tennis Tour | Hard | Benjamin Lock | Jake Delaney Bruno Nhavene | 6–4, 6–3 |
| Win | 14–9 | Mar 2022 | M25 Medellín, Colombia | World Tennis Tour | Clay | Benjamin Lock | Akira Santillan Rubin Statham | 4–6, 6–4, [10–6] |
| Win | 15–9 | May 2022 | M25 Santa Margherita di Pula, Italy | World Tennis Tour | Clay | Benjamin Lock | Adam Taylor Jason Taylor | 6–4, 3–6, [10–8] |
| Loss | 15–10 | May 2022 | M15 Oran, Algeria | World Tennis Tour | Clay | Benjamin Lock | Robin Bertrand Mirko Martinez | 6–1, 4–6, [6–10] |
| Win | 16–10 | May 2022 | M15 Oran, Algeria | World Tennis Tour | Clay | Benjamin Lock | Robin Bertrand Mirko Martinez | 6–1, 6–7$^{(4–7)}$, [10–3] |
| Loss | 16–11 | Jul 2022 | Segovia, Spain | Challenger | Hard | Benjamin Lock | Nicolás Álvarez Varona Iñaki Montes de la Torre | 6–7$^{(3–7)}$, 3–6 |
| Loss | 16–12 | Oct 2022 | Ambato, Ecuador | Challenger | Clay | Benjamin Lock | Santiago Rodríguez Taverna Thiago Agustín Tirante | 6–7$^{(11–13)}$, 3–6 |
| Win | 17–12 | Apr 2024 | M25 Mosquera, Colombia | World Tennis Tour | Clay | Benjamin Lock | Peter Bertran Thijmen Loof | 7–6$^{(7–3)}$, 7–5 |
| Loss | 17–13 | May 2024 | M25 Anapoima, Colombia | World Tennis Tour | Clay | Benjamin Lock | Ivan Denisov Daniel Antonio Nunez | 4–6, 2–6 |
| Win | 18–13 | May 2024 | M15 Addis Ababa, Ethiopia | World Tennis Tour | Clay | Benjamin Lock | Chirag Duhan Maik Steiner | 6–3, 7–6$^{(7–4)}$ |
| Win | 19–13 | May 2024 | M25 Addis Ababa, Ethiopia | World Tennis Tour | Clay | Benjamin Lock | S D Prajwal Dev Adil Kalyanpur | 3–6, 6–3, [10–8] |
| Win | 20–13 | Jun 2024 | Blois, France | Challenger | Hard (i) | Benjamin Lock | Corentin Denolly Arthur Géa | 1–6, 6–3, [10–4] |

## Davis Cup
### Participations: (4–5)

* Group membership
* World Group (0–0)
* WG Play-off (0–0)
* Group I (0–0)
* Group II (3–4)
* Group III (1–1)
* Group IV (0–0)
* Matches by surface
* Hard (3–4)
* Clay (1–1)
* Grass (0–0)
* Carpet (0–0)
* Matches by type
* Singles (0–2)
* Doubles (4–3)
* indicates the outcome of the Davis Cup match followed by the score, date, place of event, the zonal classification and its phase, and the court surface.
| Rubber outcome | No. | Rubber | Match type (partner if any) | Opponent nation | Opponent player(s) | Score |
| 5–0; 17-19 July 2015; Harare Sports Club, Harare, Zimbabwe; Europe/Africa Zone Group II Relegation play off; Hard surface |||||||
| Victory | 1 | III | Doubles (with Mark Fynn) | Moldova | Dmitrii Baskov / Andrei Șoltoianu | 7–5, 5–7, 7–6$^{(8–6)}$, 6–3 |
| 1–4; 4-6 March 2016; Kittilän Urheiluhalli, Kittilä, Finland; Europe/Africa Zone Group II First round; Hard (indoor) surface |||||||
| Defeat | 2 | I | Singles | Finland | Jarkko Nieminen | 0–6, 0–6, 0–6 |
| Defeat | 3 | III | Doubles (with Mark Fynn) | Finland | Henri Kontinen / Jarkko Nieminen | 1–6, 0–6, 1–6 |
| Defeat | 4 | V | Singles (dead rubber) | Finland | Harri Heliövaara | 1–6, 0–6 |
| 2–3; 15-17 July 2016; Mziuri Tennis Club, Tbilisi, Georgia; Europe/Africa Zone Group II Relegation play off; Hard surface |||||||
| Victory | 5 | III | Doubles (with Benjamin Lock) | Georgia | Nikoloz Basilashvili / Nodar Itonishvili | 3–6, 3–6, 7–6$^{(8–6)}$, 6–4, 6–4 |
| 3–0; 17 July 2017; Solaimaneyah Club, Cairo, Egypt; Europe/Africa Zone Group III Round Robin; Clay surface |||||||
| Victory | 6 | III | Doubles (with Benjamin Lock) (dead rubber) | Rwanda | Olivier Havugimana / Fabrice Tuyishime | 6–2, 6–1 |
| 0–3; 21 July 2017; Solaimaneyah Club, Cairo, Egypt; Europe/Africa Zone Group III Round Robin; Clay surface |||||||
| Defeat | 7 | III | Doubles (with Benjamin Lock) (dead rubber) | Egypt | Youssef Hossam / Sherif Sabry | 4–6, 3–6 |
| 1–4; 5-6 April 2019; Polyvalent Hall, Piatra Neamţ, Romania; Europe/Africa Zone Group II First round; Hard (indoor) surface |||||||
| Defeat | 8 | III | Doubles (with Benjamin Lock) | Romania | Florin Mergea / Horia Tecău | 1–6, 4–6 |
| 3–1; 6-7 March 2020; Harare Sports Club, Harare, Zimbabwe; World Group II Play-off First round; Hard surface |||||||
| Victory | 9 | III | Doubles (with Benjamin Lock) | Syria | Yacoub Makzoume / Hazem Naw | 6–1, 4–6, 6–3 |