American Ninja Warrior Junior

American Ninja Warrior Junior was the first installment of the children's edition ofAmerican Ninja Warrior and the Ninja vs. Ninja version. The show premiered October 13, 2018, on Universal Kids, with Matt Iseman and Akbar Gbaja-Biamila reprising their roles as the host and co-host and Laurie Hernandez as the sideline reporter.

After the tenth episode was aired December 8, 2018, the show was set to a two-and-a-half-month break, before returning to air February 23, 2019.

Abbreviations
The following abbreviations are used to differentiate the episodes in between the qualifying round and semifinals along with its respective brackets for simplicity sake and to avoid confusion:
 * QR - Qualifying Round
 * SF - Semifinals
 * BK - Bracket
 * EP - Episode

Competition Format
192 kids across the U.S., ranging from 9 to 14 years old, would compete in three different age brackets. Each bracket consisted of 64 kids mentored by two top American Ninja Warrior competitors. Those age brackets were:
 * Bracket 1: Ages 9 and 10 years old (mentored by Barclay Stockett and Drew Drechsel),
 * Bracket 2: Ages 11 and 12 years old (mentored by Natalie Duran and Najee Richardson), and
 * Bracket 3: Ages 13 and 14 years old (mentored by Meagan Martin and Kevin Bull).

Just like American Ninja Warrior: Ninja vs. Ninja, American Ninja Warrior Junior also featured a side-by-side obstacle course. However, unlike those competitions, where female competitors were required to face each other, female competitors could face male competitors on this competition.

In general, just like on Team Ninja Warrior, the competition for each age bracket of American Ninja Warrior Junior consisted of three rounds:
 * Round One (Seeding Round)
 * There were two matchups, with two competitors in each matchup.
 * Each matchup consisted of just one heat, where two competitors would race side-by-side on a series of obstacles.
 * In each matchup, the competitor who completed the course or made the furthest, in case of no competitor could complete the course, in the fastest time would win the matchup and face the losing competitor from another matchup in Round Two (Knockout Round).
 * Round Two (Knockout Round)
 * The competition worked the same as in Round One, with the competitor who won the first matchup in Round One would face the competitor who lost the second matchup in Round One, and vice versa.
 * This time, the two competitors who won in each matchup would advance to Final Showdown, while the two losing competitors would be eliminated from the competition.
 * Final Showdown
 * In Final Showdown, the two winning competitors from Round Two would face each other.
 * The competitor who won the Final Showdown would advance to the next round, while the losing competitor would be eliminated from the competition.

The competition ran for a total of 20 episodes, with the first 16 episodes being served as the qualifying round, the next 3 episodes being served as the semifinals, and 1 episode being served as the finals. In each age bracket:
 * The 16 winning competitors from the qualifying round would compete in the semifinals, with the 4 winning competitors advancing to the finals.
 * Then, in the finals, the winning competitors would be crowned as the first ever American Ninja Warrior Junior champions.
 * The top 4 competitors in the finals would receive the cash prizes as the following:
 * $15,000 for the champion (first place),
 * $7,500 for the second place,
 * $5,000 for the third place, and
 * $2,500 for the fourth place.

Obstacles
① Sonic Swing (Bracket 1 and Bracket 2), Archer Steps (Bracket 3)

② Tic Toc

③ I-Beam (Bracket 1), Ring Toss (Bracket 2), Devil Steps (Bracket 3)

④ Floating Tiles

⑤ Spin Cycle (Bracket 1), Fly Wheels (Bracket 2), Flying Shelf Grab (Bracket 3)

⑥ Warped Wall (13 feet tall)
 * For competitors in Bracket 1, there were 2 handholds placed at the 10 and 11.5-foot marks.
 * For competitors in Bracket 2, the 10-foot mark handhold was covered, leaving with just a handhold at the 11.5-foot mark.
 * For competitors in Bracket 3, there are no handholds since they are the oldest age group