The 2019 Rumble in the Jungle is Sunday August 11th at 9AM. (Kids race starts at 8AM.)

The Rumble in the Jungle is a 50 mile or 25 mile Solo and 50 mile Team relay mountain bike race. Teams may consist of up to 4 riders.

Registration is online ONLY. Click here to register.


Class designation is the last class you raced in during the past 5 years. Sport team no more than one Expert member. Intermediate team no more than one Sport member. Novice team no more than one Intermediate member. CO-ED team must have one female and no more than one male Expert.

50 mile Solo Categories:

Male Solo Expert (King of the Jungle)

Male Solo Sport

Male Solo Base

Male Solo Novice

Male Solo Single Speed

Male Solo Grandmasters (age 50+)

Clydesdale Solo (220+ lbs)

Female Solo Open (Queen of the Jungle)

Female Solo Base

25 mile Solo Categories:

Male Solo Expert

Male Solo Sport

Male Solo Base

Male Solo Novice

Female Solo Open

Female Solo Base

Junior Boys (12-17)

Junior Girls (12-17)

*Solo categories may be combined if there are not at least 3 registered racers in a category.

50 mile Team Categories:

Team Expert 2-4 riders

Team Sport 2-4 riders

Team Base 2-4 riders

Team Novice 2-4 riders

Team Female 2-4 riders

Team Co-Ed 2-4 riders

Kids Categories:

Boys (6-8)

Boys (9-11)

Girls (6-8)

Girls (9-11)

Kids (3-5)

Kids 6-9 will race one lap of a special kids course 3 to 4 miles at 8AM before the main race. Kids 3-5 will ride a fun ½ mile lap on the service road.

Please support the Markham Park Mountain Bike Trails by entering the race, whether you ride one lap or more your support of the trails is in your benefit. All proceeds go to the Markham Park Trail Building Fund, and will be used to build and maintain YOUR Markham Park Trail System.

Registration Closes at 4PM Saturday August 10, 2018.



Registration is $45 per adult racer until June 31st.

Registration is $50 per adult racer from July 1st to August 9th.

Late Registration is $55 per adult on Sat August 10th.

Junior Registration is $10.

Kids Registration is free.

Register online here.

Packet Pickup is at MEGACYCLE Friday August 9 from 4-7PM and Saturday August 10 from 10AM-4PM.

Racecourse will be available to pre-ride Friday and Saturday before the race. No pre-ride on the day of the race.

Kids Race starts at 8AM

Racer meeting at 8:45.

Race starts at 9AM.

All kids will receive medals.

Adult top 3 finishers receive medals and podium.

Overall men’s and women’s 50 mile Mega Rumble winners to receive custom trophy. (Sneak peek in Media)

Order your Rumble T-Shirt today!  And, the first 200 registered adult racers to pick up their race plates at packet pickup will get one custom silicone pint glass.  Racers must be present.  Cups will also be available for purchase at packet pick up and on race day while supplies last for $20 per cup which includes 5 raffle tickets for the race day raffle.  Additional cups are $10 each without raffle tickets. 

Please check out MTB SWAG for T-Shirts and Cups.

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Trails are maintained and improved by volunteers. Let's help make them better!