This was the first DEEP event with fights in a cage instead of a ring. They broke it down into 2 parts:
Yu beat Koji Kashikura by TKO (strikes) at 1:08 of round 1.
Yasuhiro Motomura beat Yong Bok Gil by DQ (accidental knees to groin) in round 2.
Sadao Kondo beat Atsuhiro Tsuboi by unanimous decision. (2 rounds)
Kenta Takagi beat Teruhiko Kubo by TKO (doctor stoppage) at 3:57 of round 1.
Koichiro Matsumoto beat Isamu Sugiuchi by unanimous decision. (2 rounds)
Eiji Ishikawa beat Yoshitomo Watanabe by majority decision. (2 rounds)
Atsushi Yamamoto beat Tomoya Miyashita by unaniomus decision. (3 rounds)
DEEP Megaton Champion Yusuke Kawaguchi beat Roque Martinez by unanimous decision in a NON-TITLE match. (3 rounds)
DEEP Bantamweight Champion Masakazu Imanari beat Justin Cruz by submission (omoplata) at 2:39 of round 1 in a NON-TITLE match.
Yasuhiro Kawasaki beat Mitsuru Yamaguchi by TKO (strikes) at 3:03 of round 1.
Hiryu Okamoto beat Kaiji Hirano by unanimous decision. (2 rounds)
Hirohide Fujinuma beat Makoto Makoto by TKO (strikes) at 2:50 of round 1.
Yuki Ito beat Naoki Matsushita by TKO (strikes) at 3:05 of round 1.
Bernard Ackah beat Shunji Kosaka by TKO (strikes) in 34 seconds.
Ryuta Sakurai beat Hiroki Sato by KO in round 1.
Takeshi Yamazaki vs. Toshiaki Kitada went to a Draw. (3 rounds)
Nobuhiro Obiya beat Toshikazu Iseno by TKO (strikes) at 1:49 of round 2.
why were they nontitle matches?
My guess is because they were in a cage and not the usual ring. Non-title matches like this are not uncommon among the smaller Japanese promotions (DEEP, Pancrase and Shooto).