Sky Hooks is a new obstacle which debuted on American Ninja Warrior 9 in the San Antonio Qualifiers. In this obstacle, competitors need to hold on to a free-moving ring which is rested on a cradle and must swing into the cradle parallel to it. Then they must repeat it for the next two rings and must dismount to the platform to advance. In qualifying, 25 competitors failed the obstacle, including Kacy Catanzaro, who was an inch away from landing the ring into the last hook. In the city finals, the distances where increased between the hooks. However, only Kaiti Haymaker and Brittany Hanks fell on them.
- The obstacle was originally conceived by Benjamin Tan, a seven-year old child who won the Obstacle Design Challenge (which occurred during American Ninja Warrior 8). This makes Benjamin the youngest obstacle-design winner for ANW 9.
- The function is similar to a part of the Giant Ring Swing in which competitors must swing the ring from one hook to the other.