TV American Ninja Warrior - Season 13 Episode 9 : Semifinals 4 American Ninja Warrior - Season 13 Episode 9 : Semifinals 4 6.849/10 by 73 users The Semifinals conclude as ninjas face up to 10 obstacles. For Split Decision, ninjas must choose between an upper-body and balance obstacle. The top 2 competitors face off on the Power Tower where the winner earns a Safety Pass for the National Finals. Details Casts Posters Images Title American Ninja Warrior - Season 13 Episode 9 : Semifinals 4 Alternative Titles 美国极限体能王 First Air Date 2009-12-12 Last Air Date 2025-09-01 Number of Episodes 257 Number of Seasons 18 Genres Reality, Networks NBC, G4, Casts Matt Iseman, Akbar Gbaja-Biamila Plot Keywords , Self - Host Matt Iseman Self - Host Akbar Gbaja-Biamila Episodes List American Ninja Warrior Season 13 :Episode 1 Qualifiers 1 Qualifiers 1 2021-05-31 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 2 Qualifiers 2 Qualifiers 2 2021-06-07 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 3 Qualifiers 3 Qualifiers 3 2021-06-21 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 4 Qualifiers 4 Qualifiers 4 2021-06-28 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 5 Qualifiers 5 Qualifiers 5 2021-07-12 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 6 Semifinals 1 Semifinals 1 2021-07-19 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 7 Semifinals 2 Semifinals 2 2021-08-09 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 8 Semifinals 3 Semifinals 3 2021-08-16 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 9 Semifinals 4 Semifinals 4 2021-08-23 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 10 National Finals 1 National Finals 1 2021-08-30 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 11 National Finals 2 National Finals 2 2021-09-06 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 12 National Finals 3 National Finals 3 2021-09-13 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 13 ANW Women's Championship ANW Women's Championship 2022-05-08 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those... American Ninja Warrior Season 13 :Episode 14 American Ninja Warrior All Star Spectacular Special American Ninja Warrior All Star Spectacular Special 2022-05-30 Follow competitors as they tackle a series of challenging obstacle courses in both city qualifying and city finals rounds across the country. Those...