Grigoriy Lomakin (born 18 March 1998) is a Kazakhstani tennis player.

Lomakin has a career high ATP singles ranking of No. 768 achieved on 15 November 2021. He also has a career high ATP doubles ranking of No. 189 achieved on 20 March 2023. Lomakin made his ATP main draw debut at the 2022 Astana Open in the doubles draw partnering Denis Yevseyev.^[1]

Result	W–L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1–0	Jul 2018	Georgia F3, Telavi	Futures	Clay	George Tsivadze	Vladyslav Orlov Oleg Prihodko	6–7(8–10), 7–6(7–5), [10–8]
Win	2–0	Aug 2018	Belarus F3, Minsk	Futures	Hard	George Tsivadze	Marek Gengel David Poljak	7–5, 7–6(7–4)
Win	3–0	Sep 2018	Kazakhstan F6, Almaty	Futures	Clay	Sagadat Ayap	Andrea Bessire Francesco Bessire	6–3, 6–4
Win	4–0	Sep 2018	Kazakhstan F8, Shymkent	Futures	Clay	George Tsivadze	Aliaksandr Bury Maksim Zubkou	7–6(7–3), 6–3
Loss	4–1	Mar 2019	M15 Antalya, Turkey	World Tennis Tour	Clay	Vladyslav Orlov	Felipe Meligeni Alves Cristian Rodríguez	3–6, 4–6
Win	5–1	Apr 2019	M15 Antalya, Turkey	World Tennis Tour	Clay	Vladyslav Orlov	Louroi Martinez Damien Wenger	6–4, 6–7(4–7), [10–6]
Loss	5–2	Apr 2019	M15 Andijan, Uzbekistan	World Tennis Tour	Hard	Markos Kalovelonis	Timur Khabibulin Vladyslav Manafov	5–7, 1–6
Loss	5–3	May 2019	M15 Tbilisi, Georgia	World Tennis Tour	Hard	George Tsivadze	Michal Konečný Ondřej Krstev	3–6, 3–6
Loss	5–4	May 2019	M15 Antalya, Turkey	World Tennis Tour	Clay	Sarp Ağabigün	Mikhail Korovin Oleg Prihodko	3–6, 7–5, [5–10]
Loss	5–5	Aug 2019	M15 Oskemen, Kazakhstan	World Tennis Tour	Hard	Sagadat Ayap	Konstantin Kravchuk Alexander Pavlioutchenkov	5–7, 3–6
Loss	5–6	Sep 2019	M25 Almaty, Kazakhstan	World Tennis Tour	Hard	George Tsivadze	Ivan Liutarevich Vladyslav Manafov	5–7, 2–6
Win	6–6	Oct 2019	M25 Tây Ninh, Vietnam	World Tennis Tour	Hard	Jumpei Yamasaki	Sidharth Rawat Manish Sureshkumar	6–0, 6–1
Win	7–6	Nov 2019	M15 Antalya, Turkey	World Tennis Tour	Clay	Oleg Prihodko	Mats Hermans Bart Stevens	6–4, 6–3
Loss	7–7	Nov 2019	M15 Antalya, Turkey	World Tennis Tour	Clay	Maxim Ratniuk	Nicolás Alberto Arreche Matias Zukas	6–7(3–7), 3–6
Win	8–7	Apr 2021	M15 Cairo, Egypt	World Tennis Tour	Clay	Kai Wehnelt	Juan Ignacio Galarza Juan Pablo Paz	6–4, 6–2
Win	9–7	May 2021	M15 Shymkent, Kazakhstan	World Tennis Tour	Clay	Yan Bondarevskiy	Sanjar Fayziev Markos Kalovelonis	6–3, 6–4
Win	10–7	Jun 2021	M15 Shymkent, Kazakhstan	World Tennis Tour	Clay	Yan Bondarevskiy	Marat Sharipov Beibit Zhukayev	7–5, 6–2
Loss	10–8	Jul 2021	Nur-Sultan, Kazakhstan	Challenger	Hard	Oleksii Krutykh	Hsu Yu-hsiou Benjamin Lock	3–6, 4–6
Win	11–8	Aug 2021	M15 Telavi, Georgia	World Tennis Tour	Clay	Yan Bondarevskiy	Denis Klok Oleg Prihodko	6–4, 3–6, [10–6]
Win	12–8	Sep 2021	M15 Chornomorsk, Ukraine	World Tennis Tour	Clay	Vladyslav Manafov	Yan Bondarevskiy Oleg Prihodko	7–6(7–5), 4–6, [10–8]
Win	13–8	Oct 2021	M15 Monastir, Tunisia	World Tennis Tour	Hard	Niki Kaliyanda Poonacha	Anis Ghorbel Mirko Martinez	6–1, 7–5
Loss	13–9	Nov 2021	M15 Sharm El Sheikh, Egypt	World Tennis Tour	Hard	Ray Ho	Ben Jones Daniel Little	4–6, 5–7
Win	14–9	Dec 2021	M15 Antalya, Turkey	World Tennis Tour	Clay	Oleg Prihodko	Toshihide Matsui Kaito Uesugi	7–5, 3–6, [10–5]
Loss	14–10	Jan 2022	M15 Cairo, Egypt	World Tennis Tour	Clay	Ray Ho	Anthony Genov Tomislav Jotovski	1–6, 6–3, [7–10]
Win	15–10	Jan 2022	M15 Cairo, Egypt	World Tennis Tour	Clay	Ray Ho	Benjamin Lock Daniel Michalski	7–6(7–2), 7–6(7–2)
Loss	15–11	Apr 2022	Pereira, Colombia	Challenger	Clay	Oleg Prihodko	Luis David Martínez Cristian Rodríguez	6–7(2–7), 6–7(3–7)
Win	16–11	Aug 2022	M25 Tbilisi, Georgia	World Tennis Tour	Hard	Ivan Liutarevich	Erik Arutiunian Daniil Ostapenkov	3–6, 7–6(7–4), [10–5]
Loss	16–12	Dec 2022	M25 Vacaria, Brazil	World Tennis Tour	Clay	Igor Gimenez	João Victor Couto Loureiro Gustavo Heide	6–3, 6–7(5–7), [5–10]
Win	17–12	Dec 2022	M15 Sharm El Sheikh, Egypt	World Tennis Tour	Hard	Marat Sharipov	Gabriele Pennaforti Kelsey Stevenson	Walkover
Loss	17–13	May 2023	M15 Tbilisi, Georgia	World Tennis Tour	Hard	Sarp Ağabigün	Aliaksandr Liaonenka Alexander Zgirovsky	2–6, 2–6
Win	18–13	Jun 2023	M15 Tehran, Iran	World Tennis Tour	Clay	Egor Agafonov	Erik Arutiunian Daniel Ibragimov	6–3, 7–6(7–4)
Win	19–13	Jun 2023	M15 Tehran, Iran	World Tennis Tour	Clay	Egor Agafonov	Yash Chaurasia Ishaque Eqbal	7–5, 6–2
Loss	19–14	Sep 2023	M15 Nakhon Si Thammarat, Thailand	World Tennis Tour	Hard	Maximus Jones	Qian Sun Wishaya Trongcharoenchaikul	4–6, 4–6
Loss	19–15	Oct 2023	M15 Doha, Qatar	World Tennis Tour	Hard	Bogdan Bobrov	Egor Agafonov Marat Sharipov	6–7(7–9), 2–6
Loss	19–16	Oct 2023	M15 Telavi, Georgia	World Tennis Tour	Clay	Zura Tkemaladze	Teymuraz Gabashvili Aleksandre Metreveli	4–6, 4–6
Win	20–16	Nov 2023	M15 Sharm El Sheikh, Egypt	World Tennis Tour	Hard	Evgeny Philippov	Tommaso Compagnucci Viktor Jovic	6–2, 7–5
Loss	20–17	Nov 2023	M15 Sharm El Sheikh, Egypt	World Tennis Tour	Hard	Evgeny Philippov	Ben Jones David Stevenson	6–7(5–7), 6–7(2–7)
Win	21–17	Dec 2023	M15 Sharm El Sheikh, Egypt	World Tennis Tour	Hard	Vadym Ursu	Filiberto Fumagalli Samuel Vincent Ruggeri	6–2, 4–6, [10–5]
Loss	21–18	Apr 2024	M25 Sharm El Sheikh, Egypt	World Tennis Tour	Hard	Ilia Simakin	Ben Jones Jakub Paul	2–6, 2–6
Win	22–18	Apr 2024	M15 Shymkent, Kazakhstan	World Tennis Tour	Clay	Pavel Verbin	Aleksandre Bakshi Niklas Schell	7–6(7–1), 6–3
Win	23–18	Apr 2024	M15 Shymkent, Kazakhstan	World Tennis Tour	Clay	Pavel Verbin	S D Prajwal Dev Sai Karteek Reddy Ganta	7–6(11–9), 6–3
Win	24–18	May 2024	M15 Tbilisi, Georgia	World Tennis Tour	Hard	Marek Gengel	Aleksandre Bakshi Zura Tkemaladze	2–6, 7–6(7–3), [10–8]
Win	25–18	May 2024	M15 Monastir, Tunisia	World Tennis Tour	Hard	Ilia Simakin	Pedro Araujo Diogo Marques	6–1, 7–5
Win	26–18	Jun 2024	M15 Monastir, Tunisia	World Tennis Tour	Hard	Paulo André Saraiva dos Santos	Niklas Schell Marcus Walters	4–6, 6–2, [10–8]
Win	27–18	Jun 2024	M15 Monastir, Tunisia	World Tennis Tour	Hard	Egor Agafonov	Paulo Andre Saraiva dos Santos Kris van Wyk	6–3, 6–3
Loss	27–19	Jun 2024	M15 Monastir, Tunisia	World Tennis Tour	Hard	Egor Agafonov	Paulo Andre Saraiva dos Santos Mateo Matulovich	5-7, 6–4, [8–10]
Loss	27–20	Jul 2024	M25 Astana, Kazakhstan	World Tennis Tour	Hard	Zura Tkemaladze	Ilia Simakin Egor Agafonov	2-6, 4-6

• Grigoriy Lomakin at the Association of Tennis Professionals
• Grigoriy Lomakin at the International Tennis Federation