Registration is still open for the Marathon Relay, Marathon, 50k and 50M races!! This is an awesome trail run for any distance!

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The North Face® Endurance Challenge returns to Algonkian Regional Park, Great Falls Park and the Potomac Heritage Trail again in 2010. The course keeps runners on their toes with ever-changing terrain. Overall, it consists of 50% singletrack, 30% dirt or gravel doubletrack, 10% gravel carriage road and 10% paved road.

The Great Falls sections are highlighted by some intense elevation changes, with steep-but-run-able climbs up to 300 feet. The River Trail covers what is widely held as the marquee section the event: up to three miles of tip-toeing and hopping along bluffs high above the Potomac River. The tedious-but-scenic time it takes to cover this section is more than offset by cruising sections of undulating trail in the river basin.

Gore-Tex® 50 Mile
– $90 - January 20, 2010 through May 6, 2010 (closes 11:59 p.m. PDT)
– $105 - May 7, 2010 through May 31, 2010 (closes 11:59 p.m. PDT )
– $125 - Packet Pickup Registration
– NO Race Day Registration

50K
– $75 - January 20, 2010 through May 6, 2010 (closes 11:59 p.m. PDT)
– $90 - May 7, 2010 through May 31, 2010 (closes 11:59 p.m. PDT )
– $110 - Packet Pickup Registration
– NO Race Day Registration

Marathon
– $75 - January 20, 2010 through May 6, 2010 (closes 11:59 p.m. PDT)
– $90 - May 7, 2010 through May 31, 2010 (closes 11:59 p.m. PDT )
– $110 - Packet Pickup Registration
– NO Race Day Registration

Marathon Relay
– $100 - January 20, 2010 through May 6, 2010 (closes 11:59 p.m. PDT)
– $115 - May 7, 2010 through May 31, 2010 (closes 11:59 p.m. PDT )
– $135 - Packet Pickup Registration
– NO Race Day Registration

Half Marathon
– *SOLD OUT

10K
– *SOLD OUT

5K
– *SOLD OUT