Season 4
Episodes
S4 · E1 · 20 May 2012 · 60 min
Southwest Qualifying Round (1)
People from the Southwest compete for a chance at the world's most difficult obstacle course.
S4 · E2 · 20 May 2012 · 60 min
Southwest Qualifying Round (2)
People from the Southwest compete for a chance at the world's most difficult obstacle course.
S4 · E3 · 22 May 2012 · 60 min
Southwest Regional Finals
The top 30 finishers from the Southwest qualifying round take on an even more challenging obstacle course to advance to the national finals.
S4 · E4 · 27 May 2012 · 60 min
Midwest Regional Qualifying Round (1)
Midwest competitors try to qualify for the national contest.
S4 · E5 · 27 May 2012 · 60 min
Midwest Regional Qualifying Round (2)
Midwest competitors try to qualify for the national contest.
S4 · E6 · 21 May 2012 · 60 min
Midwest Regional Finals
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.
S4 · E7 · 28 May 2012 · 60 min
Northeast Regional Qualifying Round (1)
Athletes from the Northeast compete.
S4 · E8 · 29 May 2012 · 60 min
Northeast Regional Qualifying Round (2)
Athletes from the Northeast compete.
S4 · E9 · 3 Jun 2012 · 60 min
Northeast Region Finals
The top 30 Northeast finishers take on a more challenging course.
S4 · E10 · 3 Jun 2012 · 60 min
Northwest Regional Qualifying Round (1)
Contestants from the Northwest compete.
S4 · E11 · 4 Jun 2012 · 60 min
Northwest Regional Qualifying Round (2)
Contestants from the Northwest compete.
S4 · E12 · 5 Jun 2012 · 60 min
Northwest Regional Finals
The top 30 Northwest finishers compete.
S4 · E13 · 10 Jun 2012 · 60 min
Midsouth Regional Qualifying Round (1)
Competitors from the Midsouth region.
S4 · E14 · 10 Jun 2012 · 60 min
Midsouth Regional Qualifying Round (2)
Competitors from the Midsouth region.
S4 · E15 · 11 Jun 2012 · 60 min
Midsouth Regional Finals
The top 30 Mid-south competitors compete.
S4 · E16 · 12 Jun 2012 · 60 min
Southeast Regional Qualifying Round (1)
Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
S4 · E17 · 17 Jun 2012 · 60 min
Southeast Regional Qualifying Round (2)
Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
S4 · E18 · 17 Jun 2012 · 60 min
Southeast Regional Finals
The top 30 Southeast finishers compete on a more challenging course..
S4 · E19 · 18 Jun 2012 · 60 min
Las Vegas Finals (1)
One hundred competitors attempt the most-difficult obstacle course.
S4 · E20 · 19 Jun 2012 · 60 min
Las Vegas Finals (2)
Stage 1 of the most-difficult obstacle course continues.
S4 · E21 · 24 Jun 2012 · 60 min
Las Vegas Finals (3)
Stage 1 of the most difficult obstacle course continues.
S4 · E22 · 24 Jun 2012 · 60 min
Las Vegas Finals (4)
Stage 1 of the 8 obstacle course will challenge even the most skilled competitors.
S4 · E23 · 25 Jun 2012 · 60 min
Las Vegas Finals (5)
Top finishers challenge Mount Midoriyama.
S4 · E24 · 26 Jun 2012 · 60 min
Las Vegas Finals (6)
Ultimate challenges including the Spider Flip and the Double Salmon Ladder.
S4 · E25 · 8 Jul 2012 · 60 min
Best of Southwest
Previously unseen footage includes top finishers from preliminary rounds tackling a challenging obstacle course.
S4 · E26 · 8 Jul 2012 · 60 min
Best of the Midwest
Competitors face a challenging obstacle course in hope of landing a spot in the finals.
S4 · E27 · 8 Jul 2012 · 60 min
Best of Northeast
Top contenders tackle a challenging obstacle course in hope of moving to the final round.
S4 · E28 · 9 Jul 2012 · 60 min
Best of Northwest
Competitors face a challenging obstacle course in hope of landing a spot in the finals.
S4 · E29 · 10 Jul 2012 · 60 min
Best of Midsouth
Athletes face the eight obstacles of Stage 1 in Las Vegas.
S4 · E30 · 16 Jul 2012 · 60 min
Best of Southeast
Finalists take on a four-stage course. Challenges include a "jumping spider" and a "spinning bridge."
S4 · E31 · 17 Jul 2012 · 60 min
Best of the Finals (1)
Athletes compete in the finals in Las Vegas.
S4 · E32 · 24 Jul 2012 · 60 min
Best of the Finals (2)
Top finishers from the regionals advance to the final round.
Data and images from TMDB.