| Challenger - Quimper | 01/31 14:55 | 25 | Antoine Hoang v Jozef Kovalik | 6-3,6-4 | |
| Australian Open Qual | 01/11 07:35 | 45 | Jozef Kovalik v Mackenzie McDonald | 2-6,2-6 | |
| Australian Open Qual | 01/10 03:20 | 44 | Gastao Elias v Jozef Kovalik | 2-6,2-6 | |
| ATP Brisbane Qual | 12/31 03:25 | - | Ernesto Escobedo v Jozef Kovalik | 6-2,7-6 | |
| ATP Brisbane Qual | 12/30 04:30 | 26 | Denis Kudla v Jozef Kovalik | 6-7,4-6 | |
| Tsjechië - Extraliga | 12/20 09:00 | 1 | [437] Michal Konecny v Jozef Kovalik [165] | 4-6,4-6 | |
| Tsjechië - Extraliga | 12/18 09:00 | 1 | [165] Jozef Kovalik v Marek Gengel [416] | 7-6,6-7,6-3 | |
| Tsjechië - Extraliga | 12/16 09:00 | 1 | [165] Jozef Kovalik v Tim Puetz [333] | 6-7,6-7 | |
| Challenger - Bratislava | 11/07 15:30 | 25 | [126] Lukas Lacko v Jozef Kovalik [162] | 6-4,6-4 | |
| Challenger - Guayaquil | 10/31 23:00 | 25 | [127] Gastao Elias v Jozef Kovalik [161] | 6-4,7-6 | |
| Challenger - Lima | 10/29 18:00 | 29 | [185] Jozef Kovalik v Gerald Melzer [138] | 5-7,6-7 | |
| Challenger - Lima | 10/28 18:40 | 28 | [185] Jozef Kovalik v Marco Cecchinato [108] | 6-2,6-1 | |
| Challenger - Lima | 10/27 18:00 | 27 | [166] Andrej Martin v Jozef Kovalik [185] | Retired | |
| Challenger - Lima | 10/26 18:00 | 26 | Jozef Kovalik v Ricardo Ojeda Lara | 6-3,6-0 | |
| Challenger - Lima | 10/24 15:30 | 25 | [260] Inigo Cervantes v Jozef Kovalik [185] | 4-6,7-6,4-6 | |
| Challenger Cali 2 | 10/17 17:15 | 25 | [436] Alejandro Gonzalez v Jozef Kovalik [167] | 3-6,6-2,6-3 | |
| Challenger - Buenos Aires | 10/09 18:50 | 25 | [167] Jozef Kovalik v Federico Coria [239] | 6-2,3-6,4-6 | |
| Challenger Rome 2 | 09/26 12:20 | 25 | [169] Jozef Kovalik v Filip Krajinovic [105] | 2-6,2-6 | |
| Davis Cup | 09/17 15:00 | 28 | Jozef Kovalik v Hubert Hurkacz | 6-4,7-5 | |
| Challenger - Genua | 09/07 14:40 | 26 | [156] Jozef Kovalik v Andrea Basso [458] | 6-3,3-6,4-6 | |
| Challenger - Genua | 09/06 12:05 | 25 | [147] Kenny de Schepper v Jozef Kovalik [156] | 2-6,2-6 | |
| US Open Qual | 08/22 19:05 | 44 | [102] Mikhail Kukushkin v Jozef Kovalik [157] | 6-1,6-3 | |
| Challenger Portoroz | 08/08 12:20 | 25 | [313] Pedro Martinez v Jozef Kovalik [151] | 1-6,6-3,7-5 | |
| ATP Kitzbuhel Qual | 07/30 09:30 | 46 | [99] Santiago Giraldo v Jozef Kovalik [150] | 7-5,6-4 | |
| ATP Kitzbuhel Qual | 07/29 09:00 | 45 | [167] Gastao Elias v Jozef Kovalik [150] | 1-6,7-5,4-6 | |
| Challenger - Praag | 07/25 10:35 | 25 | [226] Zdenek Kolar v Jozef Kovalik [150] | 2-6,6-3,6-4 | |
| Challenger Scheveningen | 07/19 13:35 | 26 | [167] Stefanos Tsitsipas v Jozef Kovalik [154] | 7-5,6-1 | |
| Challenger Scheveningen | 07/18 09:00 | 25 | [220] Daniel Brands v Jozef Kovalik [154] | 3-6,6-7 | |
| Challenger Braunschweig | 07/13 12:20 | 27 | Nicola Kuhn v Jozef Kovalik | 7-6,5-7,7-6 | |
| Challenger Braunschweig | 07/12 09:00 | 26 | [159] Jozef Kovalik v Marco Cecchinato [102] | 6-2,6-4 |
Wikipedia - Jozef Kovalík
Jozef Kovalík (Bratislava, 4 november 1992) is een Slowaakse tennisspeler. Hij heeft vijf challengers in het enkelspel en één challenger in het dubbelspel op zijn naam staan.