Takafumi Otsuka

DREAM.7 took place on March 8, 2009, at Saitama Super Arena in Saitama, Japan, promoted by Fighting and Entertainment Group’s DREAM. The main event features Shinya Aoki facing David Gardner in a lightweight bout, with Aoki coming off a unanimous decision win over Joachim Hansen at DREAM.5 and Gardner entering after a TKO victory in M-1 Challenge. Key featherweight Grand Prix opening round bouts include Norifumi "Kid" Yamamoto vs. Joe Warren, Masakazu Imanari vs. Wicky Akiyo Nishiura, and Hiroyuki Takaya vs. Jong Won Kim. Other notable fights include Mitsuhiro Ishida vs. Daiki Hata and Tatsuya Kawajiri vs. Ross Ebanez.

DREAM.14 event took place on May 29, 2010, at Saitama Super Arena in Saitama, Japan, featuring Nick Diaz against Hayato "Mach" Sakurai in a welterweight non-title main event. Diaz enters on a seven-fight win streak, fresh off a TKO victory over Marius Žaromskis to claim the Strikeforce Welterweight Championship in January 2010. Sakurai, the DREAM Welterweight Champion, aims to rebound from a submission loss to Akihiro Gono in December 2009, following his 2009 Welterweight Grand Prix win. The card also includes Ralek Gracie vs. Kazushi Sakuraba and Hiroyuki Takaya vs. Joachim Hansen.

DREAM.17 took place on September 24, 2011, at Saitama Super Arena in Saitama, Japan. This mixed martial arts showcase, promoted by Fighting and Entertainment Group's DREAM, features the opening round of the World Bantamweight Grand Prix. The main event pits Shinya Aoki against Rob McCullough in a lightweight bout. Other key matchups include Tatsuya Kawajiri vs. Joachim Hansen, Masakazu Imanari vs. Abel Cullum, and Takeshi Inoue vs. Caol Uno. The event introduces a new rule set with threeobligatory three five-minute rounds, judged in their entirety by three judges. Additional fighters include Hiroyuki Takaya, Kazuyuki Miyata, and Satoru Kitaoka across the card. It’s a pivotal night for DREAM in 2011, broadcast live on HDNet.

Rizin World Grand Prix 2017 Opening Round Part 1 was a mixed martial arts event held by the Rizin Fighting Federation on July 30, 2017 at the Saitama Super Arena in Saitama, Japan.

Rizin World Grand Prix 2017: Final Round was a mixed martial arts event held by the Rizin Fighting Federation on December 31, 2017 at the Saitama Super Arena in Saitama, Japan.

Rizin World Grand Prix 2017: 2nd Round was a mixed martial arts event held by the Rizin Fighting Federation on December 29, 2017 at the Saitama Super Arena in Saitama, Japan.