| LORETTA'S CLASSES | | PAMX CLASSES | |
| 1 | 250 B | 122-250cc | 250 B | Sunday |
| 2 | 250 B Limited | 122-250cc | | Saturday |
| 3 | 250 C | 122-250cc | 250 C | Sunday |
| 4 | 250 C Limited | 122-250cc | | Saturday |
| 5* | 250 C Jr. (12-17) Limited | 122-250cc | | Saturday |
| | | Must be 14 to race 250cc | | |
| 6 | 450 B | 122-Open cc | Open B | Sunday |
| 7 | 450 B Limited | 122-Open cc | | Saturday |
| 8 | 450 C | 122-Open cc | Open C | Sunday |
| 9 | 125 C | 122-125cc | | Saturday |
| 10* | 125cc (12-17) B/C | 122-125cc 2-Stroke | 125cc B/C | Sunday |
| 11* | Schoolboy 1 (12-17) B/C | 86-125cc 2-Stroke/75-150cc 4-Stroke | Schoolboy 1 (12-17) 99 to 125cc min/max rear 16/19” wheels | Saturday |
| | | Min. Wheels: Front 19"; Rear 16" | | |
| 12* | Schoolboy 2 (12-17) B/C | 122-250cc | Schoolboy 2 (14-17) 250cc Max | Sunday |
| | | Must be 14 to race 250cc | | |
| VET CLASSES: | | | | |
| 13 | Open Pro Sport | 122-Open cc | Open All Star | Sunday |
| 14 | 250 Pro Sport | 122-250cc | | Saturday |
| 15** | College (18-24) (Sportsman) | 122-Open cc | Collegeboy 14-24 | Sunday |
| 16 | Junior (25+) | 122-Open cc | 25+ | Sunday |
| 17** | Vet (30+) (Sportsman) | 122-Open cc | 30+ | Sunday |
| 18** | Senior (40+) (Sportsman) | 122-Open cc | 40+ | Sunday |
| 19 | Senior (45+) | 122-Open cc | 45+ | Sunday |
| 20 | Masters (50+) | 122-Open cc | 50+ | Sunday |
| 21 | Women | 122-250cc | Women +12 | Saturday |
| | | Must be 14 to race 250cc | | |
| | | Min. Wheels: Front 21"; Rear 18" | | |
| YOUTH CLASSES: | | | | |
| 22*** | Mini-E (4-6) Jr. | 1kWh Battery Energy | Mini E (4-8) | Saturday |
| 23*** | 51cc (4-6) Shaft Drive Limited | 0-51cc 2-Stroke | 50cc 3 (4-8) | Saturday |
| 24*** | 51cc (4-6) Jr. Limited | 0-51cc | 50cc 1 (4-6) | Saturday |
| 25 | 51cc (7-8) Sr. Limited | 0-51cc | 50cc 2 (7-8) | Saturday |
| 26 | 65cc (7-9) Limited | 59-65cc | | Saturday |
| 27 | 65cc (7-9) | 59-65cc | | Sunday |
| 28 | 65cc (10-11) Limited | 59-65cc | | Saturday |
| 29 | 65cc (10-11) | 59-65cc | 65cc (7-11) | Sunday |
| 30 | 85cc (10-12) Limited | 79-85cc | | Saturday |
| 31 | 85cc (10-12) | 79-85cc | 85cc (7-11) | Sunday |
| 32 | Mini Sr 1 (12-14) | 79-85cc 2-Stroke/75-150cc 4-Stroke | | Saturday |
| | | Max. Wheels: Front 17"; Rear 16" | | |
| | | Max. Wheelbase: 51" | | |
| 33 | Mini Sr 2 (13-15) | 79-85cc 2-Stroke/75-150cc 4-Stroke | Sr Mini (12-15) 79-85cc 2-stk or 150cc 4-stroke | Sunday |
| | | Max. Wheels: Front 17"; Rear 16" | Max Wheels 19”F 16”R | |
| | | Max. Wheelbase: 51" | | |
| 34 | Supermini 1 (12-15) | 79-112cc 2-Stroke/75-150cc 4-Stroke | | Saturday |
| | | Max. Wheels: Front 19"; Rear 16" | | |
| 35 | Supermini 2 (13-16) | 79-112cc 2-Stroke/75-150cc 4-Stroke | Supermini (12-16) | Sunday |
| | | Max. Wheels: Front 19"; Rear 16" | | |
| 36 | Girls (11-16) | 79-112cc 2-Stroke/75-150cc 4-Stroke | | Saturday |
| | | Max. Wheels: Front 19"; Rear 16" | | |
| | | Must be 12 to ride Supermini | | |
| * Youth age rules apply. | | | ADDITIONAL PAMX CLASSES | |
| ** Sportsman: Pro license restrictions apply. See Supplemental Rules for details. | | |
| *** Riders may attempt to qualify in more than one class, but may only enter one class at the National. | 50cc Open (Class 3 and Open, rider can not race both Classes) | Saturday |
| | | | 65 C (7-11) | Sunday |
| | | | 85 C (7-15) | Sunday |
| | | | Jr Mini (7-13) 65cc/85cc max wheels 17F-14R | Sunday |
| | | | 250cc All Star A/B classification | Sunday |
| | | | Open D | Sunday |
| | | | 4-Stroke | Sunday |
| | | | 2-Stroke | Sunday |
| | | | 30+ C | Sunday |
| | | | 35+ | Sunday |
| | | | 40+ B/C | Sunday |
| | | | 60+ | Sunday |
| | | | Bomber +10 years | Sunday |
| | | | Clydesdale +250 Pounds (Rider) | Sunday |
