2023 - Monster Mountain Entry Lists - SW85
| Name | Rider No | Sponsor | Team | Hometown | Manufacturer |
| Lucas Lee | 1 | MR DIG\KEN RODNEY CONSTRUCTION | Durham | HUS | |
| Jenson Severn | 7 | TSRACING | West Midlands | GAS | |
| Charlie Dalgleish | 36 | EVERLAST GROUP LTD | North Yorkshire | GAS | |
| Harry Hall | 46 | HEWITSON PLANT | Durham | KTM | |
| Arthur Moore | 67 | FLO MADISON CRESCENT YAMAHA\BLU | Cheshire | YAM | |
| Max Greenwell | 92 | Hampshire | HUS | ||
| Riley Butterworth | 97 | STIRLING FURNITURE\SPEEDWELL\JMR | Greater Manchester | GAS | |
| William Evans | 104 | BLUE SKY ENGINEERING UK LTD | Sir Ceredigion | GAS | |
| Daniel Devine | 132 | MACE NEWMILLS DEVINE AUTO REPAIRS | County Tyrone | GAS | |
| Connor Thompson | 141 | WULFSPORT\S ATKINSON EXCAVATIONS | Cumbria | YAM | |
| Finley Cookson | 194 | SADDMX\JDGROUP\RSS\SMPRO | Lancashire | HUS | |
| Chase Panter | 215 | BCS UK LTD | Lincolnshire | KTM | |
| Joel Winstanley-Dawson | 236 | CASTLE TRUCKS\TECH SOURCE\FXR | Lancashire | KTM | |
| Archie Butterfield | 311 | FOSSEHILL\JMR\ROCKOIL | East Riding Of Yorkshire | KTM | |
| Finley Larking | 637 | SIX SEVEN RACING | Kent | KTM | |
| Oscar Gilham | 834 | JUDD RACING UK\RE-GROUP UL | Scottish Borders | HUS |