AMA Sports Winter National Short Track Series

1. 50cc PW Shaft
2. 50cc Stock (4-8)
3. 50cc Stock Jr (4-6)
4. 50cc Stock Sr (7-8) PREMIER
5. 52-65cc 2-stroke DTX (7-11)
6. 65cc (7-11) 52-65cc 2-stroke & 52-90cc 4-stroke PREMIER
7. 66-85cc 2-stroke DTX (9-13)
8. 85cc (7-11) 66-85cc 2-stroke & 75-125cc 4-stroke PREMIER
9. 85cc (12-15) 66-85cc 2-stroke & 75-125cc 4-stroke
10. 86cc - 125cc
11. 201-250cc 4-stroke PREMIER
12. 126-250cc DTX
13. 201-250cc 2-Stroke
14. 251-500cc DTX
15. 251-450cc 4-stroke PREMIER
16. 451-505cc
17. 18+ Open Twins and Singles
18. Veteran 30+ Singles PREMIER
19. Senior 40+
20. Super Senior 50+
21. Speedway 500cc single cylinder
22. 75cc-160cc 4-stroke, 16” min. rear wheel, 19” max. front wheel, age 12+
23. Vintage Light – Up to 400cc
24. Vintage Heavy – 401 – 750cc
25. Open Pro (ONLY RUNNING AT OCALA, ROUND 3)
26. Pro Sport, (No Expert or GNC) (ONLY AT VOLUSIA, ROUND 5)

ATV’s (ONLY at Rounds 2, 3, 4 & 5)
27 - ATV 25+
28 - ATV Open
29 - ATV 265/450
91cc-265cc 2-stroke/91cc-450cc 4-stroke
30 - ATV Production