| Referee | Country |  |
W | D | L |  |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|
| Yu Fujita |
|
1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 |
| Junichiro Hama |
|
1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| Yusuke Murata |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
| Shohei Ofuji |
|
1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
