New Japan Pro Wrestling held their Summer Struggle 2021 event from the Korakuen Hall in Tokyo, Japan.

The full results are as follows.

- Togi Makabe & Tomoaki Honma def. Ryusuke Taguchi & Master Wato

- Hirooki Goto, YOSHI-HASHI, Hiroyoshi Tenzan & Satoshi Kojima def. Taichi, Zack Sabre Jr., Minoru Suzuki & DOUKI

- Kazuchika Okada & Toru Yano def. Chase Owens & Jado

- Super Junior Tag League 2021: Taiji Ishimori & El Phantasmo def. Robbie Eagles & Tiger Mask

- Super Junior Tag League 2021: El Desperado & Yoshinobu Kanemaru def. SHO & YOH