| ROUND | C | P | Q1 | Q2 | Q3 | Q4 | R1 | R2 | QF | SF | F | |||||||||||||
| sf | f | l1 | l2 | l1 | l2 | l1 | l2 | l1 | l2 | r1 | r2 | r3 | r4 | r5 | r6 | l1 | l2 | l1 | l2 | l1 | l2 | |||
| Season archive |
| Tuesday, 24 July 2018 | ||||||
| q2l1 |  Legia Warszawa | 0-2 | Spartak Trnava | |||
| q2l1 |  Dinamo Zagreb | 5-0 | Hapoel Beer Sheva | |||
| q2l1 |  Crvena Zvezda | 3-0 | Sūduva | |||
| q2l1 |  PAOK | 2-1 | FC Basel | |||
| q2l1 |  CFR Cluj | 0-1 | Malmö FF | |||
| q2l1 |  Shkëndija | 1-0 | Sheriff | |||
| q2l1 |  Astana | 2-1 | FC Midtjylland | |||
| Wednesday, 25 July 2018 | ||||||
| q2l1 |  Celtic | 3-1 | Rosenborg | |||
| q2l1 |  Ajax | 2-0 | SK Sturm Graz | |||
| q2l1 |  BATE | 0-0 | HJK | |||
| q2l1 |  Ludogorets | 0-0 | MOL Fehérvár | |||
| q2l1 |  Kukësi | 0-0 | Qarabag | |||
| Tuesday, 31 July 2018 | ||||||
| q2l2 | Spartak Trnava | 0-1 | Legia Warszawa | 2-1 | ||
| q2l2 | Sheriff | 0-0 | Shkëndija | 0-1 | ||
| q2l2 | Hapoel Beer Sheva | 2-2 | Dinamo Zagreb | 2-7 | ||
| Wednesday, 1 August 2018 | ||||||
| q2l2 | Rosenborg | 0-0 | Celtic | 1-3 | ||
| q2l2 | HJK | 1-2 | BATE | 1-2 | ||
| q2l2 | Malmö FF | 1-1 | CFR Cluj | 2-1 | ||
| q2l2 | MOL Fehérvár | 1-0 | Ludogorets | 1-0 | ||
| q2l2 | SK Sturm Graz | 1-3 | Ajax | 1-5 | ||
| q2l2 | FC Basel | 0-3 | PAOK | 1-5 | ||
| q2l2 | Qarabag | 3-0 | Kukësi | 3-0 | ||
| q2l2 | FC Midtjylland | 0-0 | Astana | 1-2 | ||
| q2l2 | Sūduva | 0-2 | Crvena Zvezda | 0-5 | ||
