Ulsan Hyundai 3-2 Kawasaki Frontale 2021-09-14 11:00
Stadium: Ulsan Munsu Football Stadium Round: 4
Referee: Mohammed Abdulla Hassan Mohamed Home Manager: Hong Myung-bo Away Manager: Toru Oniki
Head to Head
| AFC Champions League | 2019/04/23 10:00 | Kawasaki Frontale v Ulsan Hyundai | D | 2-2 |
| AFC Champions League | 2019/04/10 11:00 | Ulsan Hyundai v Kawasaki Frontale | W | 1-0 |
| AFC Champions League | 2018/04/18 10:00 | Kawasaki Frontale v Ulsan Hyundai | D | 2-2 |
| AFC Champions League | 2018/02/20 10:00 | Ulsan Hyundai v Kawasaki Frontale | W | 2-1 |