| Challenger - Genua | 09/06 10:30 | 25 | [356] Jonathan Eysseric v Guillermo Garcia-Lopez [123] | 4-6,1-6 | |
| ATP - Winston Salem | 08/21 19:00 | 24 | [290] Jonathan Eysseric v Yen-Hsun Lu [61] | 2-6,1-6 | |
| ATP Winston-Salem Qual | 08/20 19:00 | - | [45] Kyle Edmund v Jonathan Eysseric [287] | 6-3,6-1 | |
| ATP Winston-Salem Qual | 08/19 16:00 | 26 | [386] Facundo Mena v Jonathan Eysseric [287] | 3-6,4-6 | |
| Challenger - Liberec | 08/01 08:30 | 25 | [287] Jonathan Eysseric v Daniel Brands [198] | 5-7,6-3,5-7 | |
| ATP Gstaad Qual | 07/23 10:10 | 46 | [165] Yannick Hanfmann v Jonathan Eysseric [284] | 6-2,6-1 | |
| ATP Gstaad Qual | 07/22 14:30 | 45 | Jonathan Eysseric v Attila Balazs | 6-2,6-3 | |
| Challenger - Poznań | 07/21 11:15 | 27 | [284] Jonathan Eysseric v Goncalo Oliveira [283] | 6-7,4-6 | |
| Challenger - Poznań | 07/20 09:00 | 26 | [188] Jan Satral v Jonathan Eysseric [284] | 5-7,1-6 | |
| Challenger - Poznań | 07/18 16:30 | 25 | [284] Jonathan Eysseric v Hubert Hurkacz [299] | 6-3,6-4 | |
| Challenger Perugia Qual | 07/10 09:00 | 54 | Jonathan Eysseric v Moez Echargui | 6-4,4-6,2-6 | |
| Challenger Perugia Qual | 07/09 13:25 | 46 | Jonathan Eysseric v Alessandro Petrone | 6-4,6-3 | |
| Challenger Recanati | 07/04 19:00 | 25 | [278] Jonathan Eysseric v Kenny de Schepper [151] | 3-6,6-3,1-6 | |
| Challenger - Milaan | 06/29 15:15 | 26 | [105] Marco Cecchinato v Jonathan Eysseric [275] | 6-7,7-6,6-1 | |
| Challenger - Milaan | 06/27 12:50 | 25 | [275] Jonathan Eysseric v Maxime Hamou [267] | 6-1,1-6,6-3 | |
| Challenger - Blois | 06/21 10:35 | 26 | [108] Casper Ruud v Jonathan Eysseric [277] | 3-6,6-1,6-4 | |
| Challenger - Blois | 06/20 08:00 | 25 | [194] Tristan Lamasine v Jonathan Eysseric [277] | 6-3,4-6,4-6 | |
| French Open Qual | 05/23 08:00 | 44 | [226] Matteo Donati v Jonathan Eysseric [273] | 6-4,6-3 | |
| Challenger Bordeaux Qual | 05/13 12:35 | 45 | [289] Maxime Janvier v Jonathan Eysseric [240] | 6-7,6-4,6-3 | |
| Challenger Aix en Provence Qual | 05/07 14:40 | 46 | Jonathan Eysseric v Elliot Benchetrit | 5-7,1-6 | |
| ATP Munich Qual | 04/29 09:00 | - | [226] Jonathan Eysseric v Guido Pella [158] | 5-7,2-6 | |
| Challenger - Francavilla | 04/26 09:00 | 25 | [346] Lorenzo Sonego v Jonathan Eysseric [226] | 7-5,6-4 | |
| ITF Italy F9 | 04/18 16:20 | 25 | [438] Lorenzo Frigerio v Jonathan Eysseric [226] | 3-6,6-4,6-2 | |
| ITF Spain F9 | 03/30 10:00 | 26 | [454] Alexander Ward v Jonathan Eysseric [228] | Retired | |
| ITF Spain F9 | 03/29 15:00 | 25 | David Jorda Sanchis v Jonathan Eysseric | 6-7,1-6 | |
| ITF Spain F8 | 03/22 13:30 | 26 | [228] Jonathan Eysseric v Gerard Granollers-Pujol [433] | 7-6,1-6,2-6 | |
| ITF Spain F8 | 03/21 12:45 | 25 | Jonathan Eysseric v Dante Gennaro | 6-3,6-4 | |
| ITF Tunisia F10 | 03/16 12:50 | 26 | Geoffrey Blancaneaux v Jonathan Eysseric | 3-6,7-5,7-5 | |
| ITF Tunisia F10 | 03/15 13:10 | 25 | Franco Capalbo v Jonathan Eysseric | 2-6,0-6 | |
| Challenger Wroclaw | 03/03 10:30 | 27 | Paul-Henri Mathieu v Jonathan Eysseric | 6-2,6-4 |