| 1 | Thu 26 Sep | 261-2 v FenerbahçeFenerbahçe 2-1 Union Saint-Gilloise | UEFA Europa League Matchday 1 |
| 2 | Thu 3 Oct | 260-0 v FK Bodø/GlimtUnion Saint-Gilloise 0-0 FK Bodø/Glimt | UEFA Europa League Matchday 2 |
| 3 | Thu 24 Oct | 260-1 v FC MidtjyllandFC Midtjylland 1-0 Union Saint-Gilloise | UEFA Europa League Matchday 3 |
| 4 | Sun 27 Oct | 26 1-3 v Cercle BruggeUnion Saint-Gilloise 1-3 Cercle Brugge | Belgian First Division A |
| 5 | Sat 2 Nov | 261-1 v MechelenMechelen 1-1 Union Saint-Gilloise | Belgian First Division A |
| 6 | Thu 7 Nov | 26 1-1 v RomaUnion Saint-Gilloise 1-1 Roma | UEFA Europa League Matchday 4 |
| 7 | Sun 10 Nov | 264-0 v KRC GenkUnion Saint-Gilloise 4-0 KRC Genk | Belgian First Division A |
| 8 | Sun 24 Nov | 26 1-1 v Oud-Heverlee LeuvenOud-Heverlee Leuven 1-1 Union Saint-Gilloise | Belgian First Division A |
| 9 | Thu 28 Nov | 26 1-0 v FC TwenteFC Twente 0-1 Union Saint-Gilloise | UEFA Europa League Matchday 5 |
| 10 | Sun 1 Dec | 262-1 v Royal AntwerpUnion Saint-Gilloise 2-1 Royal Antwerp | Belgian First Division A |
| 11 | Sun 8 Dec | 260-0 v Cercle BruggeCercle Brugge 0-0 Union Saint-Gilloise | Belgian First Division A |
| 12 | Thu 26 Dec | 263-1 v KAA GentKAA Gent 1-3 Union Saint-Gilloise | Belgian First Division A |
| 13 | Sat 11 Jan | 262-1 v Sporting de CharleroiSporting de Charleroi 1-2 Union Saint-Gilloise | Belgian First Division A |
| 14 | Sun 19 Jan | 261-0 v Oud-Heverlee LeuvenUnion Saint-Gilloise 1-0 Oud-Heverlee Leuven | Belgian First Division A |
| 15 | Thu 23 Jan | 262-1 v Sporting BragaUnion Saint-Gilloise 2-1 Sporting Braga | UEFA Europa League Matchday 7 |
| 16 | Sun 26 Jan | 264-0 v Germinal BeerschotGerminal Beerschot 0-4 Union Saint-Gilloise | Belgian First Division A |
| 17 | Thu 30 Jan | 26 1-2 v RangersRangers 2-1 Union Saint-Gilloise | UEFA Europa League Matchday 8 |
| 18 | Sun 2 Feb | 262-1 v Sint-Truidense VVUnion Saint-Gilloise 2-1 Sint-Truidense VV | Belgian First Division A |
| 19 | Sun 9 Feb | 26 2-1 v KV KortrijkKV Kortrijk 1-2 Union Saint-Gilloise | Belgian First Division A |
| 20 | Sun 16 Feb | 26 0-1 v MechelenUnion Saint-Gilloise 0-1 Mechelen | Belgian First Division A |
| 21 | Thu 20 Feb | 262-1 v AjaxAjax 1-2 Union Saint-Gilloise | UEFA Europa League Play-off Knockout Round |
| 22 | Sun 9 Mar | 263-0 v Standard LiègeUnion Saint-Gilloise 3-0 Standard Liège | Belgian First Division A |
| 23 | Sat 5 Apr | 263-0 v KAA GentKAA Gent 0-3 Union Saint-Gilloise | Belgian First Division A Play-off |
| 24 | Sat 12 Apr | 262-0 v RSC AnderlechtUnion Saint-Gilloise 2-0 RSC Anderlecht | Belgian First Division A Play-off |
| 25 | Sun 20 Apr | 262-1 v KRC GenkKRC Genk 1-2 Union Saint-Gilloise | Belgian First Division A Play-off |
| 26 | Thu 24 Apr | 261-0 v Club BruggeClub Brugge 0-1 Union Saint-Gilloise | Belgian First Division A Play-off |
| 27 | Sun 27 Apr | 260-0 v Club BruggeUnion Saint-Gilloise 0-0 Club Brugge | Belgian First Division A Play-off |
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