4x01 Southwest Qualifying Round (1)
May 20, 2012 9:00 pm
People from the Southwest compete for a chance at the world's most difficult obstacle course.
4x02 Southwest Qualifying Round (2)
May 20, 2012 9:00 pm
People from the Southwest compete for a chance at the world's most difficult obstacle course.
4x03 Southwest Regional Finals
May 21, 2012 9:00 pm
The top 30 finishers from the Southwest qualifying round take on an even more challenging obstacle course to advance to the national finals.
4x04 Midwest Regional Qualifying Round (1)
May 27, 2012 9:00 pm
Midwest competitors try to qualify for the national contest.
4x05 Midwest Regional Qualifying Round (2)
May 27, 2012 9:00 pm
Midwest competitors try to qualify for the national contest.
4x06 Midwest Regional Finals
May 28, 2012 9:00 pm
The top 30 qualifiers compete for a chance to move on to the national finals and tackle a harder course in hope of getting the $50,000 prize.
4x07 Northeast Regional Qualifying Round (1)
June 3, 2012 9:00 pm
Athletes from the Northeast compete.
4x08 Northeast Regional Qualifying Round (2)
June 3, 2012 9:00 pm
Athletes from the Northeast compete.
4x09 Northeast Region Finals
June 5, 2012 9:00 pm
The top 30 Northeast finishers take on a more challenging course.
4x10 Northwest Regional Qualifying Round (1)
June 10, 2012 9:00 pm
Contestants from the Northwest compete.
4x11 Northwest Regional Qualifying Round (2)
June 10, 2012 9:00 pm
Contestants from the Northwest compete.
4x13 Midsouth Regional Qualifying Round (1)
June 17, 2012 9:00 pm
Competitors from the Midsouth region.
4x14 Midsouth Regional Qualifying Round (2)
June 17, 2012 9:00 pm
Competitors from the Midsouth region.
4x16 Southeast Regional Qualifying Round (1)
June 24, 2012 9:00 pm
Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
4x17 Southeast Regional Qualifying Round (2)
June 24, 2012 9:00 pm
Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
4x18 Southeast Regional Finals
June 25, 2012 9:00 pm
The top 30 Southeast finishers compete on a more challenging course..
4x19 Las Vegas Finals (1)
July 8, 2012 9:00 pm
One hundred competitors attempt the most-difficult obstacle course.
4x20 Las Vegas Finals (2)
July 8, 2012 9:00 pm
Stage 1 of the most-difficult obstacle course continues.
4x21 Las Vegas Finals (3)
July 8, 2012 9:00 pm
Stage 1 of the most difficult obstacle course continues.
4x22 Las Vegas Finals (4)
July 9, 2012 9:00 pm
Stage 1 of the 8 obstacle course will challenge even the most skilled competitors.
4x24 Las Vegas Finals (6)
July 23, 2012 9:00 pm
Ultimate challenges including the Spider Flip and the Double Salmon Ladder.
4x25 Best of Southwest
February 2, 2013 9:00 pm
Previously unseen footage includes top finishers from preliminary rounds tackling a challenging obstacle course.
4x26 Best of the Midwest
February 9, 2013 9:00 pm
Competitors face a challenging obstacle course in hope of landing a spot in the finals.
4x27 Best of Northeast
February 16, 2013 9:00 pm
Top contenders tackle a challenging obstacle course in hope of moving to the final round.
4x28 Best of Northwest
February 23, 2013 9:00 pm
Competitors face a challenging obstacle course in hope of landing a spot in the finals.
4x29 Best of Midsouth
March 2, 2013 9:00 pm
4x30 Best of Southeast
March 9, 2013 9:00 pm
4x31 Best of the Finals (1)
March 16, 2013 9:00 pm
4x32 Best of the Finals (2)
March 23, 2013 9:00 pm
Top finishers from the regionals advance to the final round.
