| març del 202615 de març |  Eliteserien | Aalesund 1–3 LillestromRegular Season - 1 | V |
| abril del 202606 d’abr. | Eliteserien | Molde 0–1LillestromRegular Season - 3 | V |
| 11 d’abr. | Eliteserien | Lillestrom3–1 StartRegular Season - 4 | V |
| 15 d’abr. | Eliteserien | Tromso 0–0LillestromRegular Season - 15 | E |
| 19 d’abr. | Eliteserien | Valerenga 0–2LillestromRegular Season - 5 | V |
| 26 d’abr. | Eliteserien | Lillestrom0–2 Bodo/GlimtRegular Season - 6 | D |
| maig del 202603 de maig | Eliteserien | Lillestrom4–0 Sarpsborg 08 FFRegular Season - 7 | V |
| 10 de maig | Eliteserien | Rosenborg 2–0LillestromRegular Season - 8 | D |
| 16 de maig | Eliteserien | Lillestrom3–1 SandefjordRegular Season - 9 | V |
| 20 de maig | Eliteserien | Lillestrom1–2 Kristiansund BKRegular Season - 2 | D |
| 25 de maig | Eliteserien | Ham-Kam 2–0LillestromRegular Season - 10 | D |
| juliol del 202611 de jul. | Eliteserien | Fredrikstad 0–2LillestromRegular Season - 13 | V |
| 18 de jul. | Eliteserien | Lillestrom2–1 KFUM OsloRegular Season - 14 | V |
| 22 de jul. | Eliteserien | Lillestrom1–2 VikingRegular Season - 11 | D |
| 31 de jul. | Eliteserien | Bodo/Glimt21:00LillestromRegular Season - 16 | — |
| agost del 202609 d’ag. | Eliteserien | Lillestrom14:30RosenborgRegular Season - 17 | — |
| 15 d’ag. | Eliteserien | KFUM Oslo16:00LillestromRegular Season - 18 | — |
| 30 d’ag. | Eliteserien | Lillestrom19:15FredrikstadRegular Season - 19 | — |
| setembre del 202605 de set. | Eliteserien | Brann 18:00LillestromRegular Season - 20 | — |
| 12 de set. | Eliteserien | Lillestrom16:00ValerengaRegular Season - 21 | — |
| 20 de set. | Eliteserien | Viking17:00LillestromRegular Season - 22 | — |
| octubre del 202611 d’oct. | Eliteserien | Lillestrom17:00MoldeRegular Season - 23 | — |
| 18 d’oct. | Eliteserien | Sandefjord17:00LillestromRegular Season - 24 | — |
| 25 d’oct. | Eliteserien | Lillestrom17:00BrannRegular Season - 12 | — |
| novembre del 202601 de nov. | Eliteserien | Start17:00LillestromRegular Season - 25 | — |
| 08 de nov. | Eliteserien | Lillestrom17:00AalesundRegular Season - 26 | — |
| 22 de nov. | Eliteserien | Sarpsborg 08 FF17:00LillestromRegular Season - 27 | — |
| 29 de nov. | Eliteserien | Lillestrom17:00Ham-KamRegular Season - 28 | — |
| desembre del 202606 de des. | Eliteserien | Kristiansund BK17:00LillestromRegular Season - 29 | — |
| 13 de des. | Eliteserien | Lillestrom17:00TromsoRegular Season - 30 | — |
