NJPW G1 Climax 2019 - Night 18 was a professional wrestling event promoted by New Japan Pro-Wrestling (NJPW) that took place on August 11, 2019 in Tokyo at the Nippon Budokan. It was broadcast on NJPW World.
- Numbers in parentheses indicate the length of the match.
- (c) refers to the champion(s) heading into the match.
- Ren Narita & Shota Umino defeated Yota Tsuji & Yuya Uemura (7:34)
- BULLET CLUB (Bad Luck Fale, Chase Owens & Yujiro Takahashi) defeated Los Ingobernables de Japon (BUSHI, EVIL & SANADA) (7:54)
- Kota Ibushi, Toa Henare & Tomoaki Honma defeated Clark Connors, Karl Fredericks & KENTA (8:22)
- CHAOS (Kazuchika Okada, Will Ospreay & YOSHI-HASHI) & Hiroshi Tanahashi defeated Suzuki-gun (Lance Archer, Minoru Suzuki, Yoshinobu Kanemaru & Zack Sabre Jr.) (10:35)
- Jeff Cobb  defeated Toru Yano  (5:18) in a G1 Climax 2019 Block B Match
- Taichi  (w/Yoshinobu Kanemaru) defeated Tomohiro Ishii  (11:56) in a G1 Climax 2019 Block B Match
- Juice Robinson  defeated Jon Moxley  (16:26) in a G1 Climax 2019 Block B Match
- Shingo Takagi  defeated Hirooki Goto  (15:10) in a G1 Climax 2019 Block B Match
- Jay White  (w/ Gedo) defeated Tetsuya Naito  (18:51) in a G1 Climax 2019 Block B Match
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