Updated 3/11/2024

ADVANCEMENT PERCENTILE
Bike Long CourseNumber/LetterAP % Start RangeAP % End RangeDescription
XC-P11-99A0.00%100.00%Pro level payback class.  Pros from other series.
Open A100-199A90.00%100.00%Skill based. Open age and displacement. Fastest non-paid riders.
Open Intermediate500-599A80.00%90.00%Skill based. Intermediate speed riders.
Amateur100-199B70.00%80.00%Skill based. Open age and displacement.
Novice200-299B65.00%70.00%Skill based. Open age and displacement.
Sportsman700-799B60.00%65.00%Skill based. Open age and displacement.
Beginner900-999B0.00%60.00%Open age and displacement. Entry level skill class. Riders in this class are closely monitored for fit and will be promoted as necessary.
30+ Expert200-299A90.00%100.00%30 or older as of round 1 of current race season.
30+ Intermediate600-699A80.00%90.00%30 or older as of round 1 of current race season.
30+ Amateur300-399B0.00%80.00%30 or older as of round 1 of current race season. B speed riders.
40+ Expert300-399A90.00%100.00%40 or older as of round 1 of current race season.
40+ Intermediate700-799A80.00%90.00%40 or older as of round 1 of current race season.
40+ Amateur400-499B0.00%80.00%40 or older as of round 1 of current race season. B speed riders.
50+ Expert400-499A85.00%100.00%50 or older as of round 1 of current race season.
50+ Intermediate800-899A70.00%85.00%50 or older as of round 1 of current race season.
50+ Amateur500-599B0.00%70.00%50 or older as of round 1 of current race season. B speed riders.
60+ A900-999A0.00%100.00%60 or older as of round 1 of current race season.
A Trail1000-1099A80.00%100.00%No series points, series awards or race awards. Trail rider is not included in the overall. Class for casual, but timed riding. A trail is restricted to A speed riders.
Bike Trail B1000-1099B0.00%80.00%No series points, series awards or race awards. Trail Rider is not included in the overall. Class for casual, but timed riding. B trail is restricted to B speed riders.
School Boy/Girl A11-99B80.00%90.00%Skill based. Intermediate speed, 12-16 age as of round 1 of current race season. Max 200cc 2-stroke or 250cc 4-stroke.
School Boy/Girl B600-699B0.00%80.00%Skill based. 12-16 age as of round 1 of current race season. Max 200cc 2-stroke or 250cc 4-stroke.
Women’s800-899B0.00%100.00%Women only. Open age and 85cc+.
Short Course Bike
Open A0-99V85.00%100.00%A speed.  Open age and displacement.
Open B200-299V75.00%85.00%B speed.  Open age and displacement.
Open C300-399U0.00%75.00%Open age and displacement. Amateur speeds.  Under 45 as of round 1 of current race season.
Decades/Pre-Modern100-199V0.00%100.00%Pre-1999 motorcycles.  Open age and displacement.
45+ C0-99U0.00%75.00%Amateur speeds.  45+ as of round 1 of current race season. Over 75% advance to Open B SC
Post-Vintage100-199U0.00%100.00%Open age and displacement.  1986 or older bike.
Women’s SC200-299U0.00%100.00%Women only. Open age and displacement. *Note that a size restricted women’s short course class is also available in the Mini 85 race.
Bike 85cc
Mini 85A0-99K85.00%100.00%Skill based. A speeds. 14 and under as of round 1 of current race season. Max 112cc 2 stroke or 150cc 4 stroke. Max wheel size 19″/16″.  Ex. KX100, KX85, KLX 140, KLX 140L, CRF 150R, CRF 150F, KTM 105XC, KTM 105SX
Mini 85B100-199K75.00%85.00%Skill based. B speeds. 14 and under as of round 1 of current race season. Max 112cc 2 stroke or 150cc 4 stroke. Max wheel size 19″/16″.  Ex. KX100, KX85, KLX 140, KLX 140L, CRF 150R, CRF 150F, KTM 105XC, KTM 105SX
Mini 85C200-299K65.00%75.00%Skill based. C speeds. 14 and under as of round 1 of current race season. Max 112cc 2 stroke or 150cc 4 stroke. Max wheel size 19″/16″.  Ex. KX100, KX85, KLX 140, KLX 140L, CRF 150R, CRF 150F, KTM 105XC, KTM 105SX
Mini 85D300-399K0.00%65.00%Skill based. D speeds. 14 and under as of round 1 of current race season. Max 112cc 2 stroke or 150cc 4 stroke. Max wheel size 19″/16″.  Ex. KX100, KX85, KLX 140, KLX 140L, CRF 150R, CRF 150F, KTM 105XC, KTM 105SX
Women’s 85400-499K0.00%100.00%Women only. Open age. Max 112cc 2 stroke or 230cc 4 stroke.
Bike 65cc
Mini 65A0-99N80.00%100.00%Skill based. A speeds. 12 and under as of round 1 of current race season. Max 65cc 2 stroke or 110cc 4 stroke. Max wheel size 14″/12″.  Ex. KX 65, CRF 100F, CRF 80F, TTR 110E, KLX110
Mini 65B100-199N70.00%80.00%Skill based. B speeds. 12 and under as of round 1 of current race season. Max 65cc 2 stroke or 110cc 4 stroke. Max wheel size 14″/12″.  Ex. KX 65, CRF 100F, CRF 80F, TTR 110E, KLX110
Mini 65C200-299N0.00%70.00%Skill based. C speeds. 12 and under as of round 1 of current race season. Max 65cc 2 stroke or 110cc 4 stroke. Max wheel size 14″/12″.  Ex. KX 65, CRF 100F, CRF 80F, TTR 110E, KLX110
Bike 50cc
Mini 50A0-99M85.00%100.00%Skill based. A speeds. 9 and under as of round 1 of current race season. 12/10 max wheel size. Max 50cc 2 stroke or 70cc 4 stroke. Live engine start. Ex. KTM 50, DRZ 70, CRF 70 (with small wheels)
Mini 50B100-199M75.00%85.00%Skill based. B speeds. 9 and under as of round 1 of current race season. 12/10 max wheel size. Max 50cc 2 stroke or 70cc 4 stroke. Live engine start. Ex. KTM 50, DRZ 70, CRF 70 (with small wheels)
Mini 50C200-299M0.00%75.00%Skill based. C speeds. 9 and under as of round 1 of current race season. 12/10 max wheel size. Max 50cc 2 stroke or 70cc 4 stroke. Live engine start. Ex. KTM 50, DRZ 70, CRF 70 (with small wheels)
4-6 Air Cooled300-399M0.00%100.00%New class for 2024.  Air cooled, PW-style or SX-E2 motorcycles.  Ages 4-6 as of Jan 1 of race season.
Quad Long Course
Quad XC-P10-99X0.00%100.00%Pro level payback class.  Pros from other series.
Quad Expert100-199X90.00%100.00%Skill based. Open age and displacement.
Quad Intermediate200-299X80.00%90.00%Skill based. Open age and displacement.
Quad Amateur300-399X75.00%80.00%Skill based. Open age and displacement. Entry point for riders with more than 1 year of riding experience.
Quad Sportsman500-599X0.00%75.00%Skill based. Open age and displacement.
Quad Utility400-499X0.00%100.00%Open age and displacement.  ATV must be sold as a utility ATV with automatic transmission and reverse gear. Open age and displacement. Polaris ACE allowed. No side-by-sides.
Quad Women’s Long Course600-699X0.00%100.00%Ladies only. Open age and displacement.
Quad Short Course
Open Quad Short Course A1-99Z85.00%100.00%Age 14+ as of round 1 of current race season. No pro riders. Intermediate to expert riders. Open displacement.
Open Quad Short Course B100-199Z75.00%85.00%Age 14+ as of round 1 of current race season. No pro riders. Amateur to intermediate riders. Open displacement.
Open Quad Short Course C200-299Z0.00%75.00%Age 14+ as of round 1 of current race season. No pro riders. Beginner to sportsman riders. Open displacement.
Youth/Women's Quad Short Course
Youth Short Course Quad1-99W0.00%100.00%12-16 years of age as of round 1 of current race season. Max 350cc 4-stroke or 200cc 2-stroke ATV.
Womens Short Course Quad A100-199W80.00%100.00%Women only. No age or displacement limits. A class is intended for intermediate to advanced lady riders.
Womens Short Course Quad B200-299W70.00%80.00%Women only. No age or displacement limits. B class is intended for novice lady riders.
Womens Short Course Quad C300-399W0.00%70.00%Women only. No age or displacement limits. C class is intended for beginner lady riders.
Mini Quad
Mini Quad A1-99Y0.00%100.00%14 and under as of round 1 of current race season. Max 100cc 2 stroke or 125cc 4 stroke.
Mini Quad B100-199Y0.00%100.00%10 and under as of round 1 of current race season. Max 100cc 2 stroke or 125cc 4 stroke.
Pee Wee Quad
Pee Wee Quad1-99Q0.00%100.00%7 and under as of round 1 of current race season. Max 70cc 2 stroke or 100cc 4 stroke.