Michihiro Omigawa upset Hatsu Hioki on Saturday at Sengoku 11 in Tokyo, Japan, receiving a controversial split decision win in the evening’s main event. Also on the card, Mamed Khalidov extended his unbeaten streak to 18-straight by making quick work of Jorge Santiago, while notables Jorge Masvidal, Akihiro Gono, and Dave Herman also picked up wins.

All 22 fighters set to participate at Saturday’s Sengoku 11th Battle event in Tokyo, Japan successfully made weight earlier today for their bouts. The official weigh-in results for the HDNet-televised event, which is headlined by Hatsu Hioki vs. Michihiro Omigawa, are after the jump.

DREAM recently announced additions and changes to the fight card its October 25 DREAM 12 event, including Kazushi Sakuraba replacing Melvin Manhoef against Zelg Galesic and welterweight champ Marius Zaromskis’ return to action in a non-title bout against Myeon Ho Bae.

Read about the latest Japan fight bookings and news in MMAFrenzy.com’s Rising Sun Roundup…

In this weeks addition of MMAFrenzy.com’s Rising Sun Roundup, our weekly look at the MMA happenings in Japan, we take a look at Takanori Gomi’s “last fight in Japan” as well as the rest of the Vale Tudo Japan card. Also included is a look at the upcoming Sengoku 11 and Dream 12 fight card additions, and more.

Kickboxer Antz Nansen spoiled the MMA debut of fellow-newcomer Hiroshi Izumi on Wednesday in the main event of Sengoku 10, stopping the 2004 Olympic judo silver medalist from Japan with strikes in the opening round of the headliner at the Saitama Super Arena in Saitama, Japan.

Hatsu Hioki, Michihiro Omigawa, Masenori Kanehara, and Marlon Sandro advanced to the semifinals of the Sengoku's featherweight grand prix on Friday with victories at Sengoku Eighth Battle in Tokyo, Japan.

Takanori Gomi def. Bang Seung Hwan via unanimous decision
Frank Trigg def. Makoto Takimoto via unanimous decision
Satoru Kitaoka def. Clay French via submission (achilles lock) — Round 1, 0:31
Lightweight GP Series 2008 1st Round
Eiji Mitsuoka def. Rodrigo Damm via submission (rear naked choke) — Round 1, 3:13
Lightweight GP Series 2008 1st Round
Kazunori Yokota def. Bojan [...]

Takanori Gomi (69.9 kg; 154.1 lb)vs. Bang Seung Hwan (70.0 kg; 154.3 lb)
Makoto Takimoto (82.0 kg; 180.8 lb) vs. Frank Trigg (82.9 kg; 182.8 lb)
Satoru Kitaoka (70.0 kg; 154.3 lbs) vs. Clay French (69.9 kg; 154.1 lb)
Lightweight GP Series 2008 1st Round
Eiji Mitsuoka (69.9 kg; 154.1 lb) vs. Rodrigo Damm (69.9 kg; 154.1 lb)
Lightweight [...]

World Victory Road has announced that it’s middleweight grand prix will start at Sengoku 5 on September 28th at the Yoyogi National Gymnasium in Tokyo, Japan.
Kazuhiro Nakamura, Evangelista Cyborg, Siyar Bahadurzada, and Jorge Santiago are all set to participate in the opening round of the middleweight tournament.
The promotion also announced that Kazuo Takahashi will face [...]

World Victory Road today announced that 1996 Judo Olympic gold medalist Pawel Nastula will fight Korean wrestler Yang Dong Yi at Sengoku 4 on August 24th in Saitama, Japan.
Here is an updated fight card for Sengoku 4:

Pawel Nastula vs Yang Dong Yi
Takanori Gomi vs Bang Seung Hwan
Makoto Takimoto vs Frank Trigg
Peter Graham vs Moise Rimbon
[...]