Round 7 – Dynamite Grand Prix – Preston, ID

4363 S State St Preston

From Friday, August 28 2026 until Sunday, August 30 2026

 

Round 7 - 7th Annual

Hosting Club: Grassroots Off-Road

Dates: August 28-30, 2026

Location: Cache Valley MX Park

Address: 4363 S State St, Preston, ID 83263

*Pays National, WORCS, SIDRA, UMORA, & Grassroots Off-Road Points

FRIDAY MX PRACTICE & FULL COURSE UNCLASSIFIED

Friday MX Practice will be split between the Main and Vet tracks and will be divided by skill level. The practice order will be released the Monday of the event. Cost is $45 per rider ($45 includes your Friday Full Course Unclassified later in the day) and motorcycle MX practice runs from 12pm - 2pm.

Friday Practice Schedule

Full Course Unclassified starts at 2pm and is $35 per rider at sign ups.

GP Class Map/Race Order

Click To Download: 26NGPC07Flyer_v3

Track Preview:

https://youtu.be/DFtaiME3-g8?si=9vBtAi7uC0UUBCJQ

Gate Times:

Thursday: 4pm - 10pm

Friday: 6:30am - 10pm

Saturday: 5:30am - 10pm

Sunday: 5:30am - 10pm

Gate Fees (per person):

Thurs-Sun: $30

Fri-Sun: $30

Sat-Sun: $20

Sat Only: $10

Sun Only: $10

Camping: $20/weekend

Parking: $10/weekend (N/A if camping)

Gate Fees Accept: Cash & Card (+3% fee)

Sign Ups:

Discounted Pre-Registration Closes Monday, Aug. 24 at 5pm MST. Sign Up HERE.

On-Site Registration Accepts: Cash & Card (+3% fee)

Thursday: 4pm - 8pm

Friday: 12pm - 7pm

Saturday: 5:30am - 3pm

Sunday: 5:30am - 3pm

Entry Fees (Pre/Post):

Race or Class: $55/$65

Youth: $45/$55

Unclassified: $35

Pro Classes: $125 ($95 Post/$85 Pre for A classes)

Transponder: $200 deposit per MyLaps transponder. Fully refunded when returned after racing.

Event Details

Race Referee:

TBA

Youth

Super Mini: 12–16 (79–112cc 2 Stroke or 75–150cc 4 Stroke)

Girls Sr. 12-16: (79–112cc 2 Stroke or 75–150cc 4 Stroke)

Girls Jr. 9-12: (59-85cc 2 Stroke or 75–125cc 4 Stroke)

85cc Sr.12-15: (66–85cc 2 Stroke or 75–125cc 4 Stroke, Max Front Wheel 17”)

85cc Jr. 7–11: (66–85cc 2 Stroke or 75–125cc 4 Stroke, Max Front Wheel 17”)

65cc 10–11: (59–65cc 2 Stroke or 59-112cc 4 Stroke)

65cc 7–9: (59–65cc 2 Stroke or 59–112cc 4 Stroke)

Peewee Jr. 4-6: (10” Front Wheel, 0-51cc 2 & 4 Stroke)

Peewee Sr. 7-8: (12” Front Wheel, 0-51cc 2 & 4 Stroke)

eMicro 4-8: (12” Front Wheel)

Skill Levels

Adult

Pro/AA, Expert, Intermediate, Novice

Youth

Advanced, Novice, Beginner

Misc. Info

*Riders Under 18 Must Be Present At Sign Up And Have BOTH Parents At Sign Ups OR An AMA Annual Release And One Parent (Or A Guardian With A Notarized Statement}. *

*Course Mileage Is Approximately 7 Miles. Minimum 45 Minute Class Races.

*All Pre-Entries Must Show AMA Cards At Sign Ups*

*Everyone Must Sign Gate Release. We Reserve The Right To Refuse Service.*

*Riders Must Run Official Approved Numbers, Fonts, and Backgrounds*

– Medical Insurance Not Provided.

– Pee-Wee Ride: Up To 10 Years Old (50cc Bikes, NO Quads) On A Modified Course.

– No Riders Under 12 Years Old In Any Class Except “Youth Races”

– Quad Riders Must Be 16 Years Of Age Or Older. NO 3 Wheelers

– Classes Determined By Engine Size

– NO PIT RIDING/BIKES!

– NO FIREWORKS.

PIT VEHICLE RULES

5mph Speed Limit

10pm Curfew

NO Passengers On Motorcycles

– Helmets REQUIRED On Motorcycles

LIMITED Four Wheel Passengers

- Bicycles/eBicycles Permitted - MUST HAVE PEDALS (Surrons/Segways/eBikes with throttles prohibited)