American Ninja Warrior 4

American Ninja Warrior 4 was the fourth season of American Ninja Warrior, which premiered on May 20th, 2012. For this season, Matt Iseman returned as the host for his third season, while Jonny Moseley and Angela Sun replaced Jimmy Smith and Alison Haislip as the co-host and sideline reporter respectively.

This season brought some major changes for the competition, compared to the past three American Ninja Warrior seasons:
 * Instead of just 1 region for qualifying round (held in Los Angeles/Venice Beach), there were 6 regions for qualifying round, held in 3 different cities (making the first time that qualifying round was held outside Los Angeles/Venice Beach). Those regions were:
 * Southwest region (held in Venice Beach),
 * Midwest region (held in Dallas),
 * Northeast region (held in Miami),
 * Northwest region (held in Venice Beach),
 * Midsouth region (held in Dallas), and
 * Southeast region (held in Miami).
 * During region qualifiers, the 30 competitors who completed the course (or made the furthest, in case of less than 30 competitors completed the course) in the fastest time would advance to region finals.
 * During region finals, the 15 competitors who completed the course (or made the furthest, in case of less than 15 competitors completed the course) in the fastest time would advance to Las Vegas national finals.
 * Las Vegas national finals featured a replica of SASUKE's Mount Midoriyama course, with 4 stages in all.
 * Staring on this season, American Ninja Warrior is aired on NBC (along with G4 until the next season, before G4's defunction in 2014). NBC didn’t have enough money at the time and needed to air another summer show (besides America’s Got Talent). In response, G4 was able to give NBC the rights to air American Ninja Warrior, with a promise that G4 aired the episode first, since that was where the show originated.

Southwest Region Qualifiers
Original Airdate: May 20th, 2012.

Obstacles
① Quad Steps

② *Log Grip

③ ^Spinning Log

④ Jump Hang

⑤ ^Devil Steps

⑥ Warped Wall

^ - New Obstacle in American Ninja Warrior Course

* - Modified Obstacle (Compared to Previous American Ninja Warrior Seasons)

Midwest Region Qualifiers
Original Airdate: May 27th, 2012.

Obstacles
① Quad Steps

② *Log Grip

③ Bridge of Blades

④ Jump Hang

⑤ ^Curtain Slider

⑥ Warped Wall

^ - New Obstacle in American Ninja Warrior Course

* - Modified Obstacle (Compared to Previous American Ninja Warrior Seasons)

Northeast Region Qualifiers
Original Airdate: June 3rd, 2012.

Obstacles
① Quad Steps

② *Log Grip

③ ^Bungee Bridge

④ Jump Hang

⑤ *Jumping Bars

⑥ ^Wall Lift

⑦ Warped Wall

^ - New Obstacle in American Ninja Warrior Course

* - Modified Obstacle (Compared to Previous American Ninja Warrior Seasons)

Northwest Region Qualifiers
Original Airdate: June 10th, 2012.

Obstacles
① Quad Steps

② *Log Grip

③ ^Spinning Log

④ Jump Hang

⑤ *Pipe Slider

⑥ Warped Wall

^ - New Obstacle in American Ninja Warrior Course

* - Modified Obstacle (Compared to Previous American Ninja Warrior Seasons)

Midsouth Region Qualifiers
Original Airdate: June 17th, 2012.

Obstacles
① Quad Steps

② *Log Grip

③ Bridge of Blades

④ Jump Hang

⑤ ^Rope Junction

⑥ Warped Wall

^ - New Obstacle in American Ninja Warrior Course

* - Modified Obstacle (Compared to Previous American Ninja Warrior Seasons)

Southeast Region Qualifiers
Original Airdate: June 24th, 2012.

Obstacles
① Quad Steps

② *Log Grip

③ ^Bungee Bridge

④ Jump Hang

⑤ ^Swing Circle

⑥ ^Wall Lift

⑦ Warped Wall

^ - New Obstacle in American Ninja Warrior Course

* - Modified Obstacle (Compared to Previous American Ninja Warrior Seasons)

Southwest Region Finals
Original Airdate: May 21st, 2012.

Obstacles
① Quad Steps

② Log Grip

③ Spinning Log

④ Jump Hang

⑤ Devil Steps

⑥ Warped Wall

⑦ Salmon Ladder

⑧ ^Arm Rings

⑨ Cargo Climb

^ - New Obstacle in American Ninja Warrior Course

Midwest Region Finals
Original Airdate: May 28th, 2012.

Obstacles
① Quad Steps

② Log Grip

③ Bridge of Blades

④ Jump Hang

⑤ Curtain Slider

⑥ Warped Wall

⑦ Salmon Ladder

⑧ ^Lamp Grasper

⑨ Cargo Climb

^ - New Obstacle in American Ninja Warrior Course

Northeast Region Finals
Original Airdate: June 4th, 2012.

Obstacles
① Quad Steps

② Log Grip

③ Bungee Bridge

④ Jump Hang

⑤ Jumping Bars

⑥ Wall Lift

⑦ Warped Wall

⑧ Salmon Ladder

⑨ ^Cycle Road

⑩ Cargo Climb

^ - New Obstacle in American Ninja Warrior Course

Northwest Region Finals
Original Airdate: June 11th, 2012.

Obstacles
① Quad Steps

② Log Grip

③ Spinning Log

④ Jump Hang

⑤ Devil Steps

⑥ Warped Wall

⑦ Salmon Ladder

⑧ ^Arm Rings

⑨ Cargo Climb

^ - New Obstacle in American Ninja Warrior Course

Midsouth Region Finals
Original Airdate: June 18th, 2012.

Obstacles
① Quad Steps

② Log Grip

③ Bridge of Blades

④ Jump Hang

⑤ Rope Junction

⑥ Warped Wall

⑦ Salmon Ladder

⑧ ^Lamp Grasper

⑨ Cargo Climb

^ - New Obstacle in American Ninja Warrior Course

Southeast Region Finals
Original Airdate: June 25th, 2012.

Obstacles
① Quad Steps

② Log Grip

③ Bungee Bridge

④ Jump Hang

⑤ Jumping Bars

⑥ Wall Lift

⑦ Warped Wall

⑧ Salmon Ladder

⑨ ^Cycle Road

⑩ Cargo Climb

^ - New Obstacle in American Ninja Warrior Course

Las Vegas National Finals
Each competitor who competed in Las Vegas national finals must wear clothes/attributes that represented his/her respective qualifying region.

Stage One
Original Airdate: July 8th, 2012; July 9th, 2012; July 16th, 2012.

Obstacles
① ^Step Slider

② ^Rolling Log

③ ^Giant Swing

④ ^Jumping Spider

⑤ ^Half Pipe Attack

⑥ +Warped Wall

⑦ ^Spinning Bridge

⑧ ^Final Climb (Tarzan Rope + Rope Ladder fusion)

Time limit: 130 seconds.

^ - New Obstacle in American Ninja Warrior Course

+ - Modified Obstacle (Compared to American Ninja Warrior 4's Region Qualifiers/Finals Course)

Stage Two
Original Airdate: July 23rd, 2012.

Obstacles
① ^Slider Drop

② ^Double Salmon Ladder

③ *Unstable Bridge

④ ^Balance Tank

⑤ ^Metal Spin

⑥ +Wall Lift

Time limit: 105 seconds.

^ - New Obstacle in American Ninja Warrior Course

* - Modified Obstacle (Compared to Previous American Ninja Warrior Seasons)

+ - Modified Obstacle (Compared to American Ninja Warrior 4's Region Qualifiers/Finals Course)

Stage Three
Original Airdate: July 23rd, 2012.

Obstacles
① ^Roulette Cylinder

② ^Doorknob Grasper

③ ^Floating Boards

④ ^Ultimate Cliffhanger

⑤ ^Bungee Rope Climb

⑥ ^Hang Climb

⑦ ^Spider Flip

⑧ ^Flying Bar

^ - New Obstacle in American Ninja Warrior Course

Obstacles
① Rope Climb (77 feet)

Time limit: 30 seconds.