The Walking Bar first appeared in the Houston City Finals of American Ninja Warrior 7 as the eighth obstacle. The Walking Bar is a variant of the Flying Bar, which is normally encountered as the last obstacle of stage 3 in the national finals.
American Ninja Warrior 7
The Walking Bar made its debut in American Ninja Warrior 7, in the Houston city finals. It consists of six staggered rests, a bar, and a rope. After competitors climb the Salmon Ladder they must transition to the bar which is positioned on the first two rests. Since the rests are staggered, competitors must alternate moving each side forward to the next rest until the bar is on the last two rests. Once there, they must swing forward to a rope which they can climb down to reach the landing mat. The first half of this obstacle is similar to the Flying Bar. However, on the bar, competitors must move both sides of the bar forward at the same time, since the rests are not staggered.
American Ninja Warrior 8
On American Ninja Warrior 8, it made its return as the penultimate obstacle of Stage Three in the Las Vegas finals. In this version, the rope is not present but instead when competitors reach the bar into the last two rests, they must go to the resting bar that will lead to the next obstacle, the Flying Bar. Also, the last few rungs are arranged in a curve to help competitors to go to the resting bar easier but in contrast, makes the obstacle more harder. Due to Drew Drechsel and Daniel Gil being the only two to attempt stage three, with both of them failing the Hang Climb and the Ultimate Cliffhanger respectively, no one has attempted this obstacle in the regular season. However, it was attempted in USA vs. the World 2017 when Josh Levin, Drew Drechsel, Alexander Mars and Diego Gonzalez attempted it, with only Gonzalez and Mars failing it respectively. It was short-lived and was replaced by the Time Bomb in the next season.