Thor Mini O’s

Presented by Pro Circuit

November 18th – 25th 2023

Electric/Water Hook Up Reservations Start August 15th at 12:00pm EST

Only 1 electric/water hook up reservation per person/family.

Electric/water hook ups are not transferable.

Refunds available until the time the gates open

Pre-Registration Starts September 1st at 12:00pm EST


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Click the VP logo to pre order fuel for 2023 Mini Os

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Pre-Registration check in times by Last Name:

A-E      10:00am – 11:30 am

F-L      11:30am – 1:00 pm

M-S     1:00pm – 2:30 pm

T-Z      2:30pm – 4:00 pm


2023 Mini O’s Practice order will be posted September 1, 2023




2023 Mini O’s Race order will be posted September 1, 2023


2023 Mini O's Class List



Class Bike Size
51cc (4-6) Shaft Drive Limited SX Only – 3 Moto Format 0-51cc
Mini-E (4-8) Limited 1 kWh Battery Energy
51cc (4-6) Limited 0-51cc
51cc (7-8) Limited 0-51cc
51cc (4-8) Limited 0-51cc
65 (7-11) 59-65cc 2-Stroke
65cc (7-9) Limited 59-65cc 2-Stroke
65cc (7-9) 59-65cc 2-Stroke
65cc (10-11) Limited 59-65cc 2-Stroke
65cc (10-11) 59-65cc 2-Stroke
85cc (9-11) Limited 79-85cc 2-Stroke:Front 17″; Rear 14″
85cc (9-11) 79-85cc 2-Stroke
85cc (12-13) Limited 79-85cc 2-Stroke:Front 17″; Rear 14″
85cc (12-13) 79-85cc 2-Stroke
Mini Sr 1 (12-14) 79-85cc 2-Stroke/ 75-150cc 4-Stroke
Max. Wheels: Front 17″; Rear 16″
Max. Wheelbase: 51″
Mini Sr 2 (13-15) 79-85cc 2-Stroke/ 75-150cc 4-Stroke
Max. Wheels: Front 17″; Rear 16″
Max. Wheelbase: 51″
Super Mini 1 (12-15) 79-112cc 2-Stroke/ 75-150cc 4-Stroke
Max. Wheels: Front 19″; Rear 16″
Super Mini 2 (13-16) 79-112cc 2-Stroke/ 75-150cc 4-Stroke
Max. Wheels: Front 19″; Rear 16″
Schoolboy 1 (12-17) B/ C 86-125cc 2-Stroke/ 75-150cc 4-Stroke
Min. Wheels: Front 19″; Rear 16″
125 (12-17) B/C 100-125cc; No
Minicycle or Supermini
Schoolboy 2 (12-17) B/ C 100-150cc 2-Stroke/ 126-250cc 4-Stroke
No Supermini or Minicycles
Must be 14 to ride 250cc
Youth Rules apply to this class
250 B Limited 122-250cc
250 B 122-250cc
250 C Limited 122-250cc
250 C 122-250cc
450 B Limited 122-Open cc
450 B 122-Open cc
450 C Limited 122-Open cc
450 C 122-Open cc
250 A 122-250cc
250 Pro Sport 122-250cc
450 Pro Sport 122-Open cc
Girls Sr (11-16) 79-112cc 2-Stroke/ 75-150cc 4-Stroke
Max. Wheels: Front 19″; Rear 16″
Women (12+) 99-250cc*Must be 12 to ride Supermini*
Min. Wheels: Front 19″; Rear 16″
250 C Jr (12-17) 122-250cc; Must be 14 to ride 250cc
College Boy (16-24) 122-Open cc
Junior 25+ 122-Open cc
Vet 30+ 122-Open cc
Vet 35+ 122-Open cc
Senior 40+ 122-Open cc
Senior 45+ 122-Open cc
Masters 50+ 122-Open cc
Masters 55+ 122-Open cc
Masters 60+ MX Only

* Must be 14 to ride 250cc.

* Must be 16 to ride 450cc.

Race Fees and Points

Pre Race Entry Fee per Class:
Amateur :
Pro :
Early Arrival
November 15th and 16th during daylight hours only.
Early parking fee is $50 if you do not have an electric hook up. Everyone must purchase a wristband upon arrival. When you purchase a wristband, it is good for the remainder of the event.
Gate Times  
(Once you purchase a wristband, whatever day you arrive, it is good for the remainder of the event)
If you arrive on:
Fri Nov 18 6:00am-11:00pm – $65
Sat Nov 19 6:00am-11:00pm – $65
Sun Nov 20 6:00am-11:00p – $65
Mon Nov 21 6:00am-11:00pm – $65
Tue Nov 22 6:00am-11:00pm – $65
Wed Nov 23 6:00am-11:00pm – $55
Thurs Nov 24  6:00am-11:00pm – $50
Fri Nov 25 6:00am – $50
Sat Nov 26 6:00am – $30
One Day only – $30 (You will pay the full price for the remainder of the week and when you leave we will refund for a one day)
If we happen to have the gates open past 11:00pm on any night, the cost of the wristband will be the same up until 6:00am the next day
Pit Vehicle: $60
$10,000 PRO/A PURSE // AMA Pro Am Points EventMINIOPOINTS

AMA Supplemental Rules

1.Number plates must have either dark background with light numbers or light background with dark numbers
2. If a rider has a DNF or DNS in a supercross consi, he or she may advance to the LCQ or main event with last gate pick if there is no LCQ in that class.  If a rider has a DNF or DNS in the first moto of motocross, he or she may advance to the LCQ or second moto with last gate pick if there is no LCQ for that class.
3. The following are NOT permitted in the LIMITED CLASS
a. High compression pistons, port clean-up; metal hand guards; or aftermarket ECU units.
b. Changes or modifications to the internal engine components, frame, sub-frame, carburetor, EFI throttle body, air box, intake boot, swing arm, rim size, lower/bottom triple clamp, and wheel hubs. Engine blue printing and crank balancing are prohibited.
c. All parts of the exhaust system as designed by the manufacturer (OEM) for a particular model and year must remain stock. This includes, but is not limited to, the head pipe, mid pipe, and silencer. Updating to a more recent year exhaust is prohibited unless the OEM part number is the same. The silencer end cap may be changed for the sole purpose of inserting a spark arrestor, so long as there is no performance enhancement.
d. Gaskets, air filter screen, O-rings or other components may NOT be removed.
e. Only production tires readily available to the general public may be used.
f. The kill switch on all 51cc automatic machines must be stock and fully functioning.
g. 51cc Shaft Class: Oil injection systems must be present and fully functioning. Only oil may be put in the reservoir. Pre-mix gasoline is NOT permitted in the oil injection system.
4. The following ARE permitted in the LIMITED CLASS:
a. Replacement fuel filters, air filters, gas line, handlebars, crossbar pads, non-metal open-ended hand- guards, serrated foot pegs, lower fork leg protectors, spokes and nipples, decals, spark plugs, spark plug caps, sprockets, handlebar mounts, seat covers, and upper triple clamp.
b. Programming or mapping changes to the stock OEM ECU unit and carburetor jetting ARE permitted.
c. Cylinder re-plating is allowed but must retain the original manufacturer’s bore and port specifications.
d. Clutch plates, pistons and piston rings may be accessory items, so long as they maintain the stock shape, design and material of the OEM parts.
e. Material may be added to the existing frame for strength, including welding.
f. OEM front and rear suspension can be altered with internal modifications only.
g. Shock linkage and suspension spring rates may be changed to any commercially available part.
h. Rims can be replaced with OEM or aftermarket rims of the same size and width.
i. Front fork/rear linkage holeshot devices (aftermarket or OEM).
j. All other internal engine components must be stock OEM parts.
k. Changes that are cosmetic in nature are allowed, so long as there is no performance advantage.

Supercross Futures and Pro Am Points

Pro Am Points
250 A and 250 Pro Sport classes in Motocross and Supercross are eligible for Pro Am points
Supercross Futures Points
250 A and 250 Pro Sport classes in Supercross only are eligible for Supercross Futures points

Race Format

Supercross Format
Heats and LCQ for gate pick. Points are awarded on main event finish.
Motocross Format
Moto 1 Divisions combined with Moto 2 finish for Overall. Points are awarded on overall finish.
Tie Breaker
Determined by the rider with the most wins, 2nd and 3rd place finish.


International Riders

AMA Memberships


Facility Information

  • Pit Vehicle Pass fee – $60
  • Pit vehicles (pit bikes, golf carts, mules UTVs, ATVs, mopeds, scooters) may be used by PERMIT ONLY. MAXIMUM SPEED IS 5 MPH.  If you are caught speeding, your pit vehicle will be impounded for the remainder of the event.
  • No one under the age of 16 is allowed to drive any vehicle that has 4 wheels. Pit bikes are not allowed to be ridden after 5:30pm.  If you are caught riding a pit bike after 5:30pm, your pit bike will be impounded for the remainder of the event. Only responsible adults are allowed to drive a pit vehicle or golf cart after 5:30pm
  • Unauthorized use of pit vehicles will be confiscated and the racer subject to penalty, or even disqualification. Pit vehicles or golf carts are not permitted on the adjoining property, past the “No Trespassing or DO NOT ENTER” signs.
  • Early entry parking fee is $50. Early entry parking is Wednesday, November 16 – Thursday, November 17.  Friday at 6:00am early parking ends. Early parking is during daylight hours only.
  • Gates officially open for event parking Friday, November 18 @ 6am (no early entry fee after this time).
  • You will be parked in the order you arrive at the track. If you would like to pit with someone else, you will need to arrive with them so you can be parked together.
  • Riders and Mechanics must have armband and mechanic pass when you enter the staging area for practice and racing.
  • There is a pump out service that provides holding tank pump out daily for a fee. Do not dump gray or black water on the ground.
  • There is a fuel, oil, solvent dump station at the front gate. Do not dump oil, gas, or solvent on the ground.
  • Non-Potable water fill truck will be available to fill your tank for a fee.
  • Pit Bike Shutdown at dark – Absolutely No Pit Bike riding after dark
  • No loud noise after dark, No open fires, No fireworks
  • No vending of merchandise or services without prior written permission from Unlimited Sports. If you would like to vend, please contact us by email for your request.
  • Shipping Packages: Both UPS and Federal Express deliver to Gatorback. THE USPS DOES NOT DELIVER TO THE TRACK. Package pickup is located next to the registration office and you MUST have a picture ID to pick up packages. Please do not have packages delivered prior to Thursday, November 17th . Unlimited Sports MX is not responsible for the safekeeping of any packages.
  • Address packages clearly:(Only send packages UPS or FED-X)
    Gatorback Cycle Park
    Attention: (Rider’s Name or Business)
    20525 NW 46th Avenue, Alachua, Florida 32615
  • Lost & Found. If you find something or lose something please check with the track registration office.
  • Radio Station is 88.9 FM


* Main + SX Parking have paid electrical hook-up


Looking to be apart of the largest Amateur Motocross and Supercross events in the world? Contact us for more information! Multiple packages available from vendor spaces to track branding, livestream advertising, and more.  –> EMAIL US HERE <–


^^ Contact us for more information on becoming an event sponsor or vendor. ^^


More Information

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2022 Mini O's Riders Meeting

Racers Meeting