The entry list for the third Round of the 2013 FIM MX3 World Championship, which will take place in Belgorod on the 25th and 26th May, has been made official. Please find here below the complete list.
| Num | Rider | Nat. | Fed. | Brand | Team |
| 1 | Walkner Matthias | AUT | OeAMTC | KTM | |
| 14 | Ogorodnik Stanislav | UKR | FMU | SUZUKI | |
| 19 | Smitka Petr | CZE | ACCR | KAWASAKI | Hulho Motocross Team |
| 35 | Mitchel Sean Rowen | ZIM | ZMSF | KTM | |
| 44 | Votroubek Michal | CZE | ACCR | KTM | Motoman Team |
| 50 | Simko Tomas | SVK | SMF | KTM | Slovakia MX Profi Team |
| 62 | Gercar Klemen | SLO | AMZS | HONDA | UFO Racing Team |
| 66 | Dotsenko Dmytri | UKR | FMU | KTM | |
| 67 | Michalec Petr | CZE | ACCR | HONDA | UFO Racing Team |
| 74 | Kaurit Ardo | EST | EMF | YAMAHA | |
| 75 | Voloshyn Volodymyr | UKR | FMU | KAWASAKI | |
| 84 | Brucart Sanchez Ramon | ESP | RFME | YAMAHA | |
| 89 | Tyletski Evgeni | BLR | BFMS | KTM | |
| 92 | Chen Mykola | UKR | FMU | YAMAHA | |
| 93 | Martynov Oleksiy | UKR | FMU | KAWASAKI | |
| 111 | Bartos Petr | CZE | ACCR | KTM | Orion-RS Petrol Team |
| 114 | Didenko Sergiy | UKR | FMU | YAMAHA | |
| 138 | Batista Levy | FRA | FFM | KTM | |
| 144 | Kuts Kyrylo | UKR | FMU | YAMAHA | |
| 171 | Kovalainen Marko | FIN | SML | YAMAHA | |
| 173 | Bertuzzo Pier Filippo | ITA | FMI | YAMAHA | |
| 189 | Molochanov Oleksiy | UKR | FMU | KAWASAKI | |
| 200 | Ovcharenko Oleksiy | UKR | FMU | YAMAHA | |
| 201 | Smola Frantisek | CZE | ACCR | KTM | Orion-RS Petrol Team |
| 222 | Naumchyk Yurii | UKR | FMU | YAMAHA | |
| 232 | Michek Martin | CZE | ACCR | KTM | RSC BUKSA/ADOS Team |
| 251 | Lytvin Denys | UKR | FMU | YAMAHA | |
| 262 | Lonka Lukasz | POL | PZM | HONDA | |
| 273 | Pavluk Ruslan | UKR | FMU | KAWASAKI | |
| 289 | Irt Matevz | SLO | AMZS | SUZUKI | |
| 300 | Asmanov Dmytro | UKR | FMU | KTM | |
| 388 | Soderberg Ludvig | FIN | SML | HONDA | |
| 416 | Obermair Manuel | AUT | OeAMTC | KTM | |
| 433 | Lubomyrski Igor | UKR | FMU | HONDA | |
| 471 | Trasov Volodymyr | UKR | FMU | KTM | |
| 710 | Burenko Andriy | UKR | FMU | SUZUKI | |
| 711 | Brockel Christian | GER | DMSB | KTM | |
| 717 | Muratov Timur | RUS | DMSB | KTM | |
| 721 | Kononov Sergiy | UKR | FMU | KTM | |
| 724 | Cambre Jilani | BEL | FMB | KTM | |
| 764 | Morozov Roman | UKR | FMU | YAMAHA | |
| 888 | Fontanesi Luca | ITA | FMI | YAMAHA | |
| 919 | Arana Txomin | ESP | RFME | YAMAHA |