Although the matches were predetermined, the UWF-i was very convincing for its time, promoting a combat-based style featuring a mix of wrestling, submission grappling and kickboxing.

The UWF-i featured most of UWF's roster, and was led by Nobuhiko Takada, who was the top star and the face of the promotion.

Other natives for the promotion included Kazuo Yamazaki, Yoji Anjo, Kiyoshi Tamura, Tatsuo Nakano, Yuko Miyato, Masahito Kakihara and kickboxer Makoto Oe.

Former pro wrestler Shinji Sasazaki would lend a hand by helping some of the foreign talent, mostly from the Tennessee area, get booked on their cards.

In 1995, Anjo and other UWFi bookers proposed co-promoting with New Japan Pro-Wrestling, as a potential solution to their financial problems.

For Choshu, it was an opportunity to get payback for Thesz and Takada's earlier derision of their wrestling style, and he was determined to show fans that the real stars were in New Japan.

All of UWFi's stars mainly lost the interpromotional matches, with the exception of Takada, who won the IWGP Heavyweight Championship on January 4, 1996.

The damage to the promotion's credibility had already been done, however, and UWFi had its farewell card ("UWF FINAL") on December 27, 1996, at Tokyo's Korakuen Hall arena.

In 2017 an American independent promotion, Paradigm Pro Wrestling, based in Jeffersonville, Indiana, revived the rules for its matches.