Rider entry list for round one of the 2017 EMX250 Championship at Trentino.
| No. | Surname | First Name | Brand | Nat. |
|---|---|---|---|---|
| 3 | Cislaghi | Davide | KTM | ITA |
| 7 | Bussot | Nil | Husqvarna | ESP |
| 8 | Kratzer | Michael | Kawasaki | AUT |
| 11 | Reynisson | Eythor | Kawasaki | ISL |
| 12 | Casas Cervera | Oriol | Yamaha | ESP |
| 13 | Villanueva | Mahy | Yamaha | ESP |
| 16 | Sabulis | Karlis | Yamaha | LAT |
| 25 | Bertuzzi | Nicola | KTM | ITA |
| 26 | Koch | Tom | KTM | GER |
| 28 | Ebben | Kay | Yamaha | NED |
| 29 | Agard-Michelsen | Sander | TM | NOR |
| 30 | De Jong | Rene | KTM | NED |
| 32 | Conijn | Marcel | Kawasaki | NED |
| 33 | Natzke | Josiah | KTM | NZL |
| 36 | van Kraaij | Noud | Yamaha | NED |
| 37 | Quarti | Yuri | KTM | ITA |
| 40 | Zecchina | Simone | Yamaha | ITA |
| 41 | Grothues | Caleb | Husqvarna | AUS |
| 44 | Lesiardo | Morgan | KTM | ITA |
| 51 | Malaval | Adrien | Kawasaki | FRA |
| 52 | Walsh | Dylan | Honda | GBR |
| 60 | Charboneau | Tristan | Kawasaki | USA |
| 64 | Guarise | Ismaele | Yamaha | ITA |
| 70 | Fernandez | Ruben | Kawasaki | ESP |
| 71 | Karka | Dovydas | KTM | LTU |
| 73 | Weltin | Marshal | Kawasaki | USA |
| 76 | Kruszynski | Karol | KTM | POL |
| 80 | Bengtson | Ken | Yamaha | SWE |
| 93 | Geerts | Jago | KTM | BEL |
| 95 | Chase | Wyatt | TM | NZL |
| 98 | Kellett | Todd | Husqvarna | GBR |
| 101 | Pichon | Zachary | Suzuki | FRA |
| 102 | Sikyna | Richard | KTM | SVK |
| 112 | Beaton | Jed | Honda | AUS |
| 118 | Rubini | Stephen | Kawasaki | FRA |
| 119 | Pocock | Mel | Husqvarna | GBR |
| 124 | Ubach | Simeo | KTM | ESP |
| 142 | Haavisto | Jere | KTM | FIN |
| 143 | Martensson | Sebastian | Husqvarna | SWE |
| 147 | Sihvonen | Miro | KTM | FIN |
| 148 | Eccles | Michael | Kawasaki | GBR |
| 151 | Castro | Sergio | Kawasaki | ESP |
| 159 | Linke | Tobias | Kawasaki | GER |
| 188 | van der Linden | Joshua | Yamaha | NED |
| 195 | Nilsson | Felix | KTM | SWE |
| 200 | Zonta | Filippo | Honda | ITA |
| 212 | Gregory | Lewis | KTM | GBR |
| 224 | Teresak | Jakub | KTM | CZE |
| 242 | Brugnoni | Alessandro | KTM | ITA |
| 251 | Getteman | Jens | Kawasaki | BEL |
| 253 | Pancar | Jan | Yamaha | SLO |
| 261 | Chanavat | Dylan | Yamaha | FRA |
| 262 | Stender | Mike | Suzuki | GER |
| 267 | Bersanelli | Edoardo | Yamaha | ITA |
| 275 | Furbetta | Joakin | KTM | ITA |
| 278 | Vermijl | Thomas | Kawasaki | BEL |
| 280 | Vondrasek | Jan | KTM | CZE |
| 282 | Kahrle | Hampus | KTM | SWE |
| 303 | Forato | Alberto | Honda | ITA |
| 329 | Nijenhuis | Luca | Kawasaki | NED |
| 370 | Savioli | Ramon | KTM | ITA |
| 371 | Anton Costas | Joel | Honda | ESP |
| 377 | Bjerregaard | Nichlas | Yamaha | DEN |
| 393 | Martelli | Thomas | KTM | ITA |
| 410 | Mägi | Indrek | Kawasaki | EST |
| 454 | Chase | Cohen | TM | NZL |
| 464 | Roose | Mike | Yamaha | BEL |
| 472 | Meier | Glen | KTM | DEN |
| 485 | Savaste | Kim | Kawasaki | FIN |
| 499 | Olsson | Stefan | KTM | SWE |
| 519 | Dho | William | KTM | FRA |
| 520 | Clochet | Jimmy | Suzuki | FRA |
| 555 | Guryev | Artem | KTM | RUS |
| 644 | Kouwenberg | Nick | Yamaha | NED |
| 714 | Todd | Brad | Husqvarna | GBR |
| 720 | Goupillon | Pierre | KTM | FRA |
| 733 | Riondet | Jean | Arctic Cat | FRA |
| 751 | Jamet | Germain | Yamaha | FRA |
| 766 | Sandner | Michael | KTM | AUT |
| 838 | Ermini | Paolo | Husqvarna | ITA |
| 841 | Moroni | Luca | KTM | ITA |
| 911 | Kytonen | Roni | Husqvarna | FIN |
| 945 | Bourdon | Anthony | Husqvarna | FRA |
| 957 | Furlotti | Simone | Yamaha | ITA |
| 974 | Tamai | Mario | KTM | ITA |
| 991 | Staszkiewicz | Szymon | KTM | POL |
