| 1 | Fri 4 Aug | 171-0 v Standard LiègeStandard Liège 0-1 Union Saint-Gilloise | Belgian First Division A |
| 2 | Sat 19 Aug | 170-4 v MechelenMechelen 4-0 Union Saint-Gilloise | Belgian First Division A |
| 3 | Thu 24 Aug | 172-0 v LuganoUnion Saint-Gilloise 2-0 Lugano | UEFA Europa League Play-off Qualifying Play-off Round |
| 4 | Thu 31 Aug | 171-0 v LuganoLugano 0-1 Union Saint-Gilloise | UEFA Europa League Play-off Qualifying Play-off Round |
| 5 | Sun 3 Sep | 172-2 v Royal AntwerpUnion Saint-Gilloise 2-2 Royal Antwerp | Belgian First Division A |
| 6 | Thu 21 Sep | 171-1 v ToulouseUnion Saint-Gilloise 1-1 Toulouse | UEFA Europa League Group E |
| 7 | Sun 24 Sep | 172-0 v Cercle BruggeCercle Brugge 0-2 Union Saint-Gilloise | Belgian First Division A |
| 8 | Thu 28 Sep | 173-2 v RWD MolenbeekRWD Molenbeek 2-3 Union Saint-Gilloise | Belgian First Division A |
| 9 | Sun 1 Oct | 173-1 v Sporting de CharleroiUnion Saint-Gilloise 3-1 Sporting de Charleroi | Belgian First Division A |
| 10 | Thu 5 Oct | 170-2 v LiverpoolLiverpool 2-0 Union Saint-Gilloise | UEFA Europa League Group E |
| 11 | Sun 8 Oct | 174-0 v Sint-Truidense VVSint-Truidense VV 0-4 Union Saint-Gilloise | Belgian First Division A |
| 12 | Fri 20 Oct | 174-1 v KAS EupenUnion Saint-Gilloise 4-1 KAS Eupen | Belgian First Division A |
| 13 | Thu 26 Oct | 172-1 v LASK LinzUnion Saint-Gilloise 2-1 LASK Linz | UEFA Europa League Group E |
| 14 | Sun 29 Oct | 173-1 v KVC WesterloKVC Westerlo 1-3 Union Saint-Gilloise | Belgian First Division A |
| 15 | Thu 9 Nov | 170-3 v LASK LinzLASK Linz 3-0 Union Saint-Gilloise | UEFA Europa League Group E |
| 16 | Sun 12 Nov | 173-0 v KV KortrijkUnion Saint-Gilloise 3-0 KV Kortrijk | Belgian First Division A |
| 17 | Thu 30 Nov | 170-0 v ToulouseToulouse 0-0 Union Saint-Gilloise | UEFA Europa League Group E |
| 18 | Sun 3 Dec | 172-1 v Cercle BruggeUnion Saint-Gilloise 2-1 Cercle Brugge | Belgian First Division A |
| 19 | Sun 10 Dec | 173-1 v Sporting de CharleroiSporting de Charleroi 1-3 Union Saint-Gilloise | Belgian First Division A |
| 20 | Sun 17 Dec | 171-0 v MechelenUnion Saint-Gilloise 1-0 Mechelen | Belgian First Division A |
| 21 | Sat 23 Dec | 172-1 v KAS EupenKAS Eupen 1-2 Union Saint-Gilloise | Belgian First Division A |
| 22 | Sun 21 Jan | 172-1 v Sint-Truidense VVUnion Saint-Gilloise 2-1 Sint-Truidense VV | Belgian First Division A |
| 23 | Wed 31 Jan | 173-2 v RWD MolenbeekUnion Saint-Gilloise 3-2 RWD Molenbeek | Belgian First Division A |
| 24 | Sat 10 Feb | 17 2-2 v KVC WesterloUnion Saint-Gilloise 2-2 KVC Westerlo | Belgian First Division A |
| 25 | Sun 18 Feb | 173-1 v KV KortrijkKV Kortrijk 1-3 Union Saint-Gilloise | Belgian First Division A |
| 26 | Sat 2 Mar | 172-0 v Oud-Heverlee LeuvenOud-Heverlee Leuven 0-2 Union Saint-Gilloise | Belgian First Division A |
| 27 | Thu 14 Mar | 171-0 v FenerbahçeFenerbahçe 0-1 Union Saint-Gilloise | UEFA Europa Conference League Round of 16 |
| 28 | Sun 14 Apr | 17 1-2 v RSC AnderlechtRSC Anderlecht 2-1 Union Saint-Gilloise | Belgian First Division A |
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