StadiumStadion Middlesbrough
| Current capacity of the stadium |
| Standing | 19 300 |
| Seats | 12 100 |
| Tribune | 7 200 |
| Seats for sponsors | 200 |
| Fans attended |
| 18. 6. 2026 | Middlesbrough-Fukui | 7 429 |
| 14. 6. 2026 | Middlesbrough-AEK Athens | 3 853 |
| 13. 6. 2026 | Middlesbrough-Byllis | 3 677 |
| 9. 6. 2026 | Middlesbrough-Panathinaikos FC | 3 800 |
| 8. 6. 2026 | Middlesbrough-Troezen | 3 748 |
| 4. 6. 2026 | Middlesbrough-Prousa | 3 707 |