| Challenger Mauthausen | 05/07 08:00 | 25 | [160] Jozef Kovalik v Vilius Gaubas [285] | 6-0,7-6 | |
| Challenger Rom | 04/28 12:30 | 29 | [218] Alejandro Moro Canas v Vilius Gaubas [345] | 7-5,6-3 | |
| Challenger Rom | 04/27 14:00 | 28 | [173] Hugo Dellien v Vilius Gaubas [345] | 4-6,5-7 | |
| Challenger Rom | 04/26 14:35 | 27 | [345] Vilius Gaubas v Nicolas Moreno De Alboran [138] | 6-3,6-4 | |
| Challenger Rom | 04/25 10:05 | 26 | [345] Vilius Gaubas v Matteo Martineau [186] | 7-5,4-6,6-4 | |
| Challenger Rom | 04/23 13:05 | 25 | [166] Andrea Pellegrino v Vilius Gaubas [345] | 4-6,1-6 | |
| Challenger Rom | 04/22 08:00 | 19 | [345] Vilius Gaubas v Daniel Merida [403] | 7-5,6-4 | |
| Challenger Rom | 04/21 10:10 | 14 | [345] Vilius Gaubas v Tommaso Compagnucci [456] | 6-1,6-2 | |
| Challenger Oeiras | 04/19 15:00 | 27 | [345] Vilius Gaubas v Jaime Faria [255] | 4-6,6-7 | |
| Challenger Oeiras | 04/17 11:05 | 26 | [134] Terence Atmane v Vilius Gaubas [345] | 1-6,0-6 | |
| Challenger Oeiras | 04/15 15:00 | 25 | [345] Vilius Gaubas v Frederico Ferreira Silva [377] | 7-5,2-6,6-3 | |
| Challenger Madrid | 04/08 15:05 | 25 | [314] Vilius Gaubas v Stefano Napolitano [158] | 3-6,2-6 | |
| Challenger Girona | 03/26 15:50 | 25 | [316] Vilius Gaubas v Pedro Martinez [88] | 6-7,4-6 | |
| Challenger Girona | 03/25 14:40 | 19 | [278] Joao Sousa v Vilius Gaubas [316] | 4-6,3-6 | |
| Challenger Girona | 03/24 11:30 | 14 | Nil Regas Luis v Vilius Gaubas | 4-6,3-6 | |
| Challenger Murcia | 03/18 10:00 | 19 | [290] Samuel Vincent Ruggeri v Vilius Gaubas [316] | 6-3,7-5 | |
| Challenger Murcia | 03/17 10:00 | 14 | [139] Niki Kaliyanda Poonacha v Vilius Gaubas [332] | 6-7,3-6 | |
| ITF M25 - Quinta Do Lago | 03/06 10:00 | 25 | [332] Vilius Gaubas v Eliakim Coulibaly [447] | 2-6,3-6 | |
| ITF M25 - Faro | 03/03 11:00 | 29 | [391] Jaime Faria v Vilius Gaubas [358] | 6-1,6-3 | |
| ITF M25 - Faro | 03/02 12:00 | 28 | [358] Vilius Gaubas v Matthew Dellavedova [436] | 7-5,6-3 | |
| ITF M25 - Faro | 03/01 12:40 | 27 | [365] Altug Celikbilek v Vilius Gaubas [358] | 6-3,5-7,3-6 | |
| ITF M25 - Faro | 02/29 10:00 | 26 | Gabriele Piraino v Vilius Gaubas | 6-7,6-4,3-6 | |
| ITF M25 - Faro | 02/28 10:00 | 25 | [251] Johannes Ingildsen v Vilius Gaubas [358] | 6-3,6-7,3-6 | |
| ITF M25 - Antalya | 02/25 06:30 | 29 | Carlos Gimeno Valero v Vilius Gaubas | 1-6,7-6,7-5 | |
| ITF M25 - Antalya | 02/24 08:40 | 28 | [370] Vilius Gaubas v Tim Handel [375] | 6-2,6-3 | |
| ITF M25 - Antalya | 02/23 10:15 | 27 | [370] Vilius Gaubas v Lucas Gerch [422] | 4-6,7-5,6-3 | |
| ITF M25 - Antalya | 02/22 07:00 | 26 | Vilius Gaubas v Ioan Alexandru Chirita | 6-3,6-2 | |
| ITF M25 - Antalya | 02/20 10:25 | 25 | [370] Vilius Gaubas v Bogdan Pavel [377] | 4-6,7-5,6-3 | |
| ITF M25 - Antalya | 02/17 09:05 | 28 | [370] Vilius Gaubas v Daniel Merida [488] | 0-6,6-2,4-6 | |
| ITF M25 - Antalya | 02/16 09:15 | 27 | [370] Vilius Gaubas v Hady Habib [307] | 6-4,6-4 |