Season 4
32 episodes · May 20, 2012
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- S4E1
Southwest Qualifying Round (1)
May 20, 201260mPeople from the Southwest compete for a chance at the world's most difficult obstacle course.
- S4E2
Southwest Qualifying Round (2)
May 20, 201260mPeople from the Southwest compete for a chance at the world's most difficult obstacle course.
- S4E3
Southwest Regional Finals
May 22, 201260mThe top 30 finishers from the Southwest qualifying round take on an even more challenging obstacle course to advance to the national finals.
- S4E4
Midwest Regional Qualifying Round (1)
May 27, 201260mMidwest competitors try to qualify for the national contest.
- S4E5
Midwest Regional Qualifying Round (2)
May 27, 201260mMidwest competitors try to qualify for the national contest.
- S4E6
Midwest Regional Finals
May 21, 201260mThe 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.
- S4E7
Northeast Regional Qualifying Round (1)
May 28, 201260mAthletes from the Northeast compete.
- S4E8
Northeast Regional Qualifying Round (2)
May 29, 201260mAthletes from the Northeast compete.
- S4E9
Northeast Region Finals
Jun 3, 201260mThe top 30 Northeast finishers take on a more challenging course.
- S4E10
Northwest Regional Qualifying Round (1)
Jun 3, 201260mContestants from the Northwest compete.
- S4E11
Northwest Regional Qualifying Round (2)
Jun 4, 201260mContestants from the Northwest compete.
- S4E13
Midsouth Regional Qualifying Round (1)
Jun 10, 201260mCompetitors from the Midsouth region.
- S4E14
Midsouth Regional Qualifying Round (2)
Jun 10, 201260mCompetitors from the Midsouth region.
- S4E16
Southeast Regional Qualifying Round (1)
Jun 12, 201260mAthletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
- S4E17
Southeast Regional Qualifying Round (2)
Jun 17, 201260mAthletes and everyday people compete for a chance to take on the World's Most Difficult Obstacle Course.
- S4E18
Southeast Regional Finals
Jun 17, 201260mThe top 30 Southeast finishers compete on a more challenging course..
- S4E19
Las Vegas Finals (1)
Jun 18, 201260mOne hundred competitors attempt the most-difficult obstacle course.
- S4E20
Las Vegas Finals (2)
Jun 19, 201260mStage 1 of the most-difficult obstacle course continues.
- S4E21
Las Vegas Finals (3)
Jun 24, 201260mStage 1 of the most difficult obstacle course continues.
- S4E22
Las Vegas Finals (4)
Jun 24, 201260mStage 1 of the 8 obstacle course will challenge even the most skilled competitors.
- S4E24
Las Vegas Finals (6)
Jun 26, 201260mUltimate challenges including the Spider Flip and the Double Salmon Ladder.
- S4E25
Best of Southwest
Jul 8, 201260mPreviously unseen footage includes top finishers from preliminary rounds tackling a challenging obstacle course.
- S4E26
Best of the Midwest
Jul 8, 201260mCompetitors face a challenging obstacle course in hope of landing a spot in the finals.
- S4E27
Best of Northeast
Jul 8, 201260mTop contenders tackle a challenging obstacle course in hope of moving to the final round.
- S4E28
Best of Northwest
Jul 9, 201260mCompetitors face a challenging obstacle course in hope of landing a spot in the finals.
- S4E29
Best of Midsouth
Jul 10, 201260mAthletes face the eight obstacles of Stage 1 in Las Vegas.
- S4E30
Best of Southeast
Jul 16, 201260mFinalists take on a four-stage course. Challenges include a "jumping spider" and a "spinning bridge."
- S4E32
Best of the Finals (2)
Jul 24, 201260mTop finishers from the regionals advance to the final round.