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april 11, 2021

Rattling MTB Marathon

Rattling MTB Marathon is held in Weiser State Forest about 40 minutes north of Harrisburg, Pennsylvania.

Rattling MTB Marathon is the first endurance race of the Mid Atlantic Super Series (MASS) that's held throughout states around the Mid Atlantic.

Scroll down to view more information about Rattling MTB Marathon.


Course Information

See below.

Race Location

Rowland Picnic Area

Weiser State Forest - Haldeman Tract

Click HERE for directions



-Click the registration box above to go to the registration page.

-$10 Late Fee will be applied after 11:59 PM, Sunday, April 4, 2021.

-Online registration CLOSES at 11:59 PM, Thursday, April 8, 2021.

-Must register by 11:59 PM Sunday, March 28, 2021 to guarantee an event t-shirt.

Race Day Registration

-We will offer day of registration starting at 8:00 AM

-Event shirt WILL NOT be offered with race day registration.

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32.3 Miles ~ 2,822 Feet of Elevation

Aid Stations ~ 8.0 & 18.5 Miles


17.3 Miles ~ 1,746 Feet of Elevation

Aid Station ~ 8.0 Miles



Long Course**

Pricing $60*

  • Endurance Men

  • Endurance Women

  • Endurance Master Men (45+)

  • Endurance Single Speed

Short Course

Pricing $50*

  • Open Men

  • Open Women

  • Master Men (45+)

  • E-Bike

*Early pricing ends Sunday, April 4, 2021.  $10 price increase after.​ 

**Long Course is part of the Mid Atlantic Super Series.





SUNDAY, APRIL 11, 2021

  8:15 AM -- Registration Opens

  9:30 AM -- Registration Closes

  9:45 AM -- Racer Meeting At Start

 10:00 AM -- RACE START

 11:30 AM -- First Short Course Finisher Expected

 12:15 PM -- Short Course Awards 

 12:30 PM -- First Long Course Finisher Expected

  1:30 PM -- Long Course Awards



What You Get With Registration 

  • Well marked course

  • Event t-shirt (if registered by 3/28/21) 

  • Fully stocked aid stations

  • Awards for top-3 in each category

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Race Location

Race is located at the Haldeman Tract of Weiser State Forest.  We will use the Roland Picnic and parking area for the start/finish.

Parking will be in the lot beside the picnic area.  Even though this area is big, it can fill up quickly.  We ask that you carpool if possible.  Please park close to other vehicles and follow the parking attendants instructions so we can fit everyone in around the start/finish area.  We don't have many other parking options to use at this location.