Season 4
(2012)Episodes 32
1 Southwest Qualifying Round (1)
May 20, 2012
1h
People from the Southwest compete for a chance at the world's most difficult obstacle course.
2 Southwest Qualifying Round (2)
May 20, 2012
1h
People from the Southwest compete for a chance at the world's most difficult obstacle course.
3 Southwest Regional Finals
May 22, 2012
1h
The top 30 finishers from the Southwest qualifying round take on an even more challenging obstacle course to advance to the national finals.
4 Midwest Regional Qualifying Round (1)
May 27, 2012
1h
Midwest competitors try to qualify for the national contest.
5 Midwest Regional Qualifying Round (2)
May 27, 2012
1h
Midwest competitors try to qualify for the national contest.
6 Midwest Regional Finals
May 21, 2012
1h
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.
7 Northeast Regional Qualifying Round (1)
May 28, 2012
1h
Athletes from the Northeast compete.
8 Northeast Regional Qualifying Round (2)
May 29, 2012
1h
Athletes from the Northeast compete.
9 Northeast Region Finals
June 3, 2012
1h
The top 30 Northeast finishers take on a more challenging course.
10 Northwest Regional Qualifying Round (1)
June 3, 2012
1h
Contestants from the Northwest compete.
11 Northwest Regional Qualifying Round (2)
June 4, 2012
1h
Contestants from the Northwest compete.
12 Northwest Regional Finals
June 5, 2012
1h
The top 30 Northwest finishers compete.
13 Midsouth Regional Qualifying Round (1)
June 10, 2012
1h
Competitors from the Midsouth region.
14 Midsouth Regional Qualifying Round (2)
June 10, 2012
1h
Competitors from the Midsouth region.
15 Midsouth Regional Finals
June 11, 2012
1h
The top 30 Mid-south competitors compete.
16 Southeast Regional Qualifying Round (1)
June 12, 2012
1h
Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
17 Southeast Regional Qualifying Round (2)
June 17, 2012
1h
Athletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
18 Southeast Regional Finals
June 17, 2012
1h
The top 30 Southeast finishers compete on a more challenging course..
19 Las Vegas Finals (1)
June 18, 2012
1h
One hundred competitors attempt the most-difficult obstacle course.
20 Las Vegas Finals (2)
June 19, 2012
1h
Stage 1 of the most-difficult obstacle course continues.
21 Las Vegas Finals (3)
June 24, 2012
1h
Stage 1 of the most difficult obstacle course continues.
22 Las Vegas Finals (4)
June 24, 2012
1h
Stage 1 of the 8 obstacle course will challenge even the most skilled competitors.
23 Las Vegas Finals (5)
June 25, 2012
1h
Top finishers challenge Mount Midoriyama.
24 Las Vegas Finals (6)
June 26, 2012
1h
Ultimate challenges including the Spider Flip and the Double Salmon Ladder.
25 Best of Southwest
July 8, 2012
1h
Previously unseen footage includes top finishers from preliminary rounds tackling a challenging obstacle course.
26 Best of the Midwest
July 8, 2012
1h
Competitors face a challenging obstacle course in hope of landing a spot in the finals.
27 Best of Northeast
July 8, 2012
1h
Top contenders tackle a challenging obstacle course in hope of moving to the final round.
28 Best of Northwest
July 9, 2012
1h
Competitors face a challenging obstacle course in hope of landing a spot in the finals.
29 Best of Midsouth
July 10, 2012
1h
Athletes face the eight obstacles of Stage 1 in Las Vegas.
30 Best of Southeast
July 16, 2012
1h
Finalists take on a four-stage course. Challenges include a "jumping spider" and a "spinning bridge."
31 Best of the Finals (1)
July 17, 2012
1h
Athletes compete in the finals in Las Vegas.
32 Best of the Finals (2)
July 24, 2012
1h
Top finishers from the regionals advance to the final round.
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