Debutants
Pavel Sivakov is the youngest debutant in World Championships in 2018. There are 62 debutants.
| # | Rider | Team | Age |
|---|---|---|---|
| 1 | SIVAKOV Pavel | Russia | 21y + 81d |
| 2 | NARVÁEZ Jhonatan | Ecuador | 21y + 210d |
| 3 | VAHTRA Norman | Estonia | 21y + 311d |
| 4 | MARTÍNEZ Daniel Felipe | Colombia | 22y + 158d |
| 5 | WIRTGEN Tom | Luxembourg | 22y + 210d |
| 6 | CHIU Ho San | Hong Kong China | 22y + 289d |
| 7 | KNOX James | Great Britain | 22y + 330d |
| 8 | SWIFT Connor | Great Britain | 22y + 335d |
| 9 | RIABUSHENKO Alexandr | Belarus | 22y + 353d |
| 10 | DE PLUS Laurens | Belgium | 23y + 26d |
| 11 | OOMEN Sam | Netherlands | 23y + 46d |
| 12 | DLAMINI Nic | South Africa | 23y + 49d |
| 13 | NOVAK Domen | Slovenia | 23y + 80d |
| 14 | FARANTAKIS Stylianos | Greece | 23y + 128d |
| 15 | HAMILTON Chris | Australia | 23y + 135d |
| 16 | STRAKHOV Dmitry | Russia | 23y + 136d |
| 17 | POWER Robert | Australia | 23y + 142d |
| 18 | ASGREEN Kasper | Denmark | 23y + 234d |
| 19 | MAS Enric | Spain | 23y + 266d |
| 20 | EG Niklas | Denmark | 23y + 267d |
| 21 | KUKRLE Michael | Czech Republic | 23y + 317d |
| 22 | CHAICHI RAGHIMI Mohamad Esmail | Iran | 23y + 338d |
| 23 | RUMAC Josip | Croatia | 23y + 339d |
| 24 | HOELGAARD Markus | Norway | 23y + 361d |
| 25 | KUSS Sepp | United States | 24y + 17d |
| 26 | SCHULTZ Nick | Australia | 24y + 17d |
| 27 | CARTHY Hugh | Great Britain | 24y + 83d |
| 28 | CONTRERAS Rodrigo | Colombia | 24y + 120d |
| 29 | SESSLER Nícolas | Brazil | 24y + 154d |
| 30 | TOLHOEK Antwan | Netherlands | 24y + 154d |
| 31 | ARSLANOV Ildar | Russia | 24y + 177d |
| 32 | MÜHLBERGER Gregor | Austria | 24y + 179d |
| 33 | WÜRTZ SCHMIDT Mads | Denmark | 24y + 183d |
| 34 | VINJEBO Emil Mielke | Denmark | 24y + 190d |
| 35 | DENZ Nico | Germany | 24y + 227d |
| 36 | FRANKINY Kilian | Switzerland | 24y + 247d |
| 37 | KUDUS Merhawi | Eritrea | 24y + 250d |
| 38 | SCHACHMANN Maximilian | Germany | 24y + 264d |
| 39 | GROßSCHARTNER Felix | Austria | 24y + 281d |
| 40 | GOGL Michael | Austria | 24y + 330d |
| 41 | CARAPAZ Richard | Ecuador | 25y + 124d |
| 42 | BUCHMANN Emanuel | Germany | 25y + 316d |
| 43 | HOWSON Damien | Australia | 26y + 48d |
| 44 | MEURISSE Xandro | Belgium | 26y + 242d |
| 45 | HAGEN Carl Fredrik | Norway | 27y + 4d |
| 46 | STALNOV Nikita | Kazakhstan | 27y + 16d |
| 47 | GRMAY Tsgabu | Ethiopia | 27y + 36d |
| 48 | KOSHEVOY Ilia | Belarus | 27y + 194d |
| 49 | HIRT Jan | Czech Republic | 27y + 252d |
| 50 | HANSEN Jesper | Denmark | 27y + 342d |
| 51 | VILLALOBOS Román | Costa Rica | 28y + 98d |
| 52 | NAKANE Hideto | Japan | 28y + 151d |
| 53 | SCHELLING Patrick | Switzerland | 28y + 152d |
| 54 | MOLARD Rudy | France | 29y + 13d |
| 55 | MAHĎAR Martin | Slovakia | 29y + 61d |
| 56 | GENIEZ Alexandre | France | 30y + 167d |
| 57 | BRAMBILLA Gianluca | Italy | 31y + 39d |
| 58 | HARING Martin | Slovakia | 31y + 280d |
| 59 | KOCHETKOV Pavel | Russia | 32y + 207d |
| 60 | BRITTON Rob | Canada | 34y + 8d |
| 61 | NIEVE Mikel | Spain | 34y + 127d |
| 62 | POZZOVIVO Domenico | Italy | 35y + 304d |