Sergey Gryaztsov
| full name | Sergey Gryaztsov | |
| nationality | Russia (RUS) | |
| local spelling | Сергей Грязцов | |
| born | July 1986 | in unknown |
| Navigation | Championships | World Cup |
Championships - Medal table and top 10 positions
| kampioenschap | gold | silver | bronze | 4th-6th | 7th-10th | starts |
| WCh Single Distances | 0 | 0 | 0 | 2 | 0 | 5 |
| WCh Allround | 0 | 0 | 0 | 0 | 0 | 4 |
 ECh Allround | 0 | 0 | 0 | 0 | 0 | 3 |
| ECh Single Distances | 0 | 1 | 0 | 1 | 0 | 2 |
Championships - Results
| year | position | championship | place | |
| 2012 | NC19 | ECh Allround | Budapest | HUN |
| 2014 | 12 | WCh Allround | Heerenveen | NED |
| NC11 | ECh Allround | Hamar | NOR | |
| 2015 | 12 | WCh Single Distances 1500 meters | Heerenveen | NED |
| 4 | WCh Single Distances Team pursuit | Heerenveen | NED | |
| 12 | WCh Allround | Calgary | CAN | |
| 2016 | 6 | WCh Single Distances Team pursuit | Kolomna | RUS |
| 14 | WCh Allround | Berlin | GER | |
| 11 | ECh Allround | Minsk | BLR | |
| 2017 | 12 | WCh Single Distances 1500 meters | Gangneung | KOR |
| 2018 | 5 | ECh Single Distances 1500 meters | Kolomna | RUS |
2  | ECh Single Distances Team pursuit | Kolomna | RUS | |
| 12 | WCh Allround | Amsterdam | NED | |
| 2019 | 17 | WCh Single Distances 1500 meters | Inzell | GER |
