| K League 1 | 16/10/22 | Gangwon FC | - | Ulsan Hyundai FC | 1:2 | ||||
| K League 1 | 05/03/23 | Gangwon FC | - | Ulsan Hyundai FC | 0:1 | ||||
| K League 1 | 09/05/23 | Ulsan Hyundai FC | - | Gangwon FC | 1:0 | ||||
| K League 1 | 26/07/24 | Jeju United | - | Ulsan HD FC | 1:0 |
| K League 1 | 16/10/22 | Gangwon FC | - | Ulsan Hyundai FC | 1:2 | ||||
| K League 1 | 05/03/23 | Gangwon FC | - | Ulsan Hyundai FC | 0:1 | ||||
| K League 1 | 09/05/23 | Ulsan Hyundai FC | - | Gangwon FC | 1:0 | ||||
| K League 1 | 26/07/24 | Jeju United | - | Ulsan HD FC | 1:0 |
| Jefferson Fernando Isidio | |
| Born: | 04.04.1997 |
| Place of birth: |
Ararás, 
Brazil |
| Nationality: |
Brazil
|
| Height: | 176 cm |
| Weight: | 71 kg |
| Position(s): | Left Winger Offensive Midfielder |
| Foot: | left |