| 1. Runde | 12.07.2018 | FK Budućnost Podgorica | - | AS Trenčín | 0:2 |  |
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| 1. Runde | 19.07.2018 | AS Trenčín | - | FK Budućnost Podgorica | 1:1 | |
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| 2. Runde | 26.07.2018 | Górnik Zabrze | - | AS Trenčín | 0:1 | ||||
| 2. Runde | 02.08.2018 | AS Trenčín | - | Górnik Zabrze | 4:1 | ||||
| 3. Runde | 09.08.2018 | AS Trenčín | - | Feyenoord | 4:0 | |
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| 3. Runde | 16.08.2018 | Feyenoord | - | AS Trenčín | 1:1 | |
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| Playoffs | 23.08.2018 | AS Trenčín | - | AEK Larnaca | 1:1 | |
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| Playoffs | 30.08.2018 | AEK Larnaca | - | AS Trenčín | 3:0 | |
Kroatien