| Challenger Rovereto | 02/19 10:30 | 14 | [290] Louis Wessels v Karl Friberg [445] | 2-6,2-6 | |
| Challenger Koblenz | 02/03 15:05 | 27 | [113] Vasek Pospisil v Louis Wessels [306] | 6-4,6-2 | |
| Challenger Koblenz | 02/01 15:35 | 26 | [306] Louis Wessels v Hugo Grenier [148] | 6-4,6-3 | |
| Challenger Koblenz | 01/31 14:10 | 25 | [358] Antonie Hoang v Louis Wessels [306] | 6-7,6-3,2-6 | |
| Challenger Ottignies | 01/23 18:45 | 14 | [312] Louis Wessels v Ergi Kirkin [381] | Retired | |
| ITF M25 Sheffield | 01/17 17:30 | 25 | [485] Federico Arnaboldi v Louis Wessels [312] | 6-4,6-4 | |
| Challenger Oeiras | 01/09 17:55 | 25 | [252] Arthur Fils v Louis Wessels [308] | 6-3,0-6,6-2 | |
| Challenger Oeiras | 01/03 14:20 | 25 | [276] Goncalo Oliveira v Louis Wessels [309] | 6-3,7-6 | |
| Challenger Maia | 11/28 16:15 | 25 | [140] Aleksandar Vukic v Louis Wessels [291] | 6-2,6-7,6-1 | |
| ITF M15 Antalya | 11/26 06:55 | 27 | [293] Louis Wessels v Alex M Pujolras [453] | 4-6,3-6 | |
| ITF M15 Antalya | 11/25 06:30 | 26 | Louis Wessels v Savva Polukhin | 0-6,6-1,6-3 | |
| ITF M15 Antalya | 11/23 06:20 | 25 | Louis Wessels v Mihai Razvan Marinescu | 7-5,6-4 | |
| ITF M25 Gerusalemme | 11/05 08:00 | 28 | [294] Louis Wessels v Vladyslav Orlov [444] | 2-6,3-6 | |
| ITF M25 Gerusalemme | 11/04 08:00 | 27 | [294] Louis Wessels v Joshua Paris [439] | 6-4,6-3 | |
| ITF M25 Gerusalemme | 11/03 09:30 | 26 | Louis Wessels v Gur Trakhtenberg | 6-3,6-2 | |
| ITF M25 Gerusalemme | 11/02 13:00 | 25 | Louis Wessels v Mattias Southcombe | 6-7,6-3,7-5 | |
| ITF M25 Afula | 10/28 07:00 | 28 | [286] Louis Wessels v Daniel Cukierman [460] | 2-6,2-6 | |
| ITF M25 Afula | 10/27 07:00 | 27 | [286] Louis Wessels v Vladyslav Orlov [445] | 6-1,6-2 | |
| ITF M25 Afula | 10/26 11:20 | 26 | Louis Wessels v Yair Sarouk | 6-2,6-1 | |
| ITF M25 Afula | 10/25 06:30 | 25 | Louis Wessels v Amit Shahar | 6-2,6-0 | |
| ATP Anversa | 10/16 12:45 | 14 | [283] Louis Wessels v Nicolas Alvarez Varona [231] | 4-6,4-6 | |
| Challenger St. Tropez | 10/12 10:00 | 25 | [283] Louis Wessels v Mattia Bellucci [275] | 4-6,6-7 | |
| ITF M25 Saragozza | 10/08 11:15 | 28 | [312] Javier Barranco Cosano v Louis Wessels [276] | 6-4,6-4 | |
| ITF M25 Saragozza | 10/07 16:00 | 27 | Sergi Perez Contri v Louis Wessels | 1-6,5-7 | |
| ITF M25 Saragozza | 10/06 12:10 | 26 | [445] Mario Mansilla Diez v Louis Wessels [276] | 6-7,0-6 | |
| ITF M25 Saragozza | 10/05 16:00 | 25 | Buvaysar Gadamauri v Louis Wessels | 5-7,3-6 | |
| Challenger Lisbona | 09/25 11:45 | 14 | Louis Wessels v Duarte Vale | 6-7,6-7 | |
| Challenger Sibiu | 09/21 08:00 | 26 | [267] Louis Wessels v Nerman Fatic [258] | 3-6,6-7 | |
| Challenger Sibiu | 09/19 10:10 | 25 | [267] Louis Wessels v Mattia Bellucci [269] | 4-6,6-3,6-4 | |
| Challenger Szczecin | 09/13 15:40 | 25 | [88] Chun Hsin Tseng v Louis Wessels [269] | 7-6,6-2 |
Louis Wessels (Bielefeld, 27 agosto 1998) è un tennista tedesco.