| Пръстен | 12017/18 |
|---|---|
| Държава |  Bulgaria |
| Име | Boris Birindjiev & Svilen Penkov |
| Training 19.06.2018 (10km) | 447 place |
|---|---|
| Training 21.06.2018 (20km) | 517 place |
| Training 22.06.2018 (30km) | 240 place |
| Training 25.06.2018 (40km) | 834 place |
| Training 26.06.2018 (60km) | 711 place |
| Training 29.06.2018 (80km) | 299 place |