| Australian Open | 01/15 05:10 | 44 | [176] Steve Darcis v Elliot Benchetrit [229] | 5-7,5-7 | |
| ATP Cup | 01/10 06:30 | 27 | Steve Darcis v Roberto Bautista-Agut | Cancelled | |
| ATP Cup | 01/07 06:30 | 1 | [200] Steve Darcis v Dimitar Kuzmanov [417] | 0-6,3-6 | |
| ATP Cup | 01/05 06:30 | 1 | [157] Steve Darcis v Cameron Norrie [53] | 6-2,6-4 | |
| ATP Cup | 01/02 23:00 | 1 | [157] Steve Darcis v Alexander Cozbinov [388] | 6-4,6-7,7-5 | |
| Davis Cup | 11/20 18:50 | 1 | [158] Steve Darcis v Nick Kyrgios [30] | 2-6,6-7 | |
| Davis Cup | 11/18 15:00 | 1 | [158] Steve Darcis v Santiago Giraldo [277] | 6-3,6-2 | |
| Challenger Eckental | 11/03 13:00 | 29 | [181] Steve Darcis v Jiri Vesely [119] | 4-6,6-4,3-6 | |
| Challenger Eckental | 11/02 13:00 | 28 | [181] Steve Darcis v Lloyd Harris [103] | 6-2,6-4 | |
| Challenger Eckental | 11/01 11:35 | 27 | [181] Steve Darcis v Illya Marchenko [256] | 6-7,7-6,6-3 | |
| Challenger Eckental | 10/31 11:00 | 26 | [90] Kamil Majchrzak v Steve Darcis [181] | 6-3,2-6,5-7 | |
| Challenger Eckental | 10/29 15:45 | 25 | [181] Steve Darcis v Federico Gaio [154] | 6-2,6-3 | |
| Challenger Eckental | 10/28 15:45 | 24 | [289] James Ward v Steve Darcis [181] | 5-7,6-7 | |
| Challenger Hamburg | 10/22 18:05 | 25 | [181] Steve Darcis v Viktor Troicki [159] | 6-4,6-7,3-6 | |
| Challenger Hamburg | 10/21 18:10 | 24 | [298] Mirza Basic v Steve Darcis [181] | 3-6,6-4,5-7 | |
| ATP Antwerp | 10/15 16:00 | 25 | [47] Gilles Simon v Steve Darcis [179] | 6-1,6-2 | |
| Challenger Orleans | 09/25 14:55 | 25 | [39] Jo-Wilfried Tsonga v Steve Darcis [184] | 6-3,6-4 | |
| Challenger Orleans | 09/23 16:00 | 24 | [148] Lukas Rosol v Steve Darcis [184] | 2-6,6-7 | |
| ATP Metz | 09/16 16:00 | 25 | [35] Fernando Verdasco v Steve Darcis [182] | 6-2,6-2 | |
| US Open | 08/26 15:00 | 23 | [186] Steve Darcis v Dusan Lajovic [29] | 5-7,3-6,3-6 | |
| ATP Gstaad | 07/23 10:00 | 25 | [198] Steve Darcis v Joao Sousa [49] | 4-6,4-6 | |
| ATP Bastad | 07/16 09:00 | 25 | [121] Dennis Novak v Steve Darcis [195] | 6-2,7-5 | |
| Wimbledon | 07/03 13:15 | 24 | [221] Steve Darcis v Roberto Bautista-Agut [22] | Retired | |
| Wimbledon | 07/01 11:25 | 23 | [221] Steve Darcis v Mischa Zverev [213] | 6-2,6-4,6-4 | |
| ATP Antalya | 06/24 10:30 | 25 | [89] Bradley Klahn v Steve Darcis [230] | 6-3,6-2 | |
| ATP Antalya | 06/23 10:30 | 164 | [235] Steve Darcis v Carlos Gomez-Herrera [404] | 6-3,6-3 | |
| ATP Antalya | 06/22 10:00 | 64 | Steve Darcis v Sarp Agabigun | 6-2,6-2 | |
| Challenger Lyon | 06/12 13:20 | 25 | [140] Elias Ymer v Steve Darcis [239] | 6-1,6-3 | |
| Challenger Lyon | 06/11 11:50 | 24 | [239] Steve Darcis v Norbert Gombos [200] | 6-4,6-1 | |
| Challenger Prostejov | 06/03 09:30 | 25 | Steve Darcis v Vit Kopriva | 7-6,3-6,4-6 |