ONE Fighting Championship: War of the Lions was a mixed martial arts event held by ONE Fighting Championship. The event took place on March 31, 2012 at the Singapore Indoor Stadium in Kallang, Singapore. The event marked the debut of Nicole Chua, believed to be Singapore's first ever professional female mixed martial artist. Results Main card *Lightweight bout: Felipe Enomoto vs. Zorobabel Moreira :Moreira defeated Enomoto via submission (armbar) at 1:04 of round 3. *Featherweight bout: Tatsuya Kawajiri vs. Donald Sanchez :Kawajiri defeated Sanchez via submission (triangle choke) at 3:27 of round 1. *Lightweight bout: Eduard Folayang vs. Ole Laursen :Laursen defeated Folayang via split decision. *Welterweight bout: Yuya Shirai vs. Fabricio Monteiro :Monteiro defeated Shirai via unanimous decision. *Catchweight (195lb) bout: Melvin Manhoef vs. Yoshiyuki Nakanishi :The fight ended at round 1 as a No Contest due to accidental injuries when a gash on Manhoef's leg rendered him unable to compete. *Lightweight bout: Eddie Ng vs. Jian Kai Chee :Ng defeated Chee via TKO (punches) at 0:43 of round 1. Preliminary card *Bantamweight bout: Masakazu Imanari vs. Kevin Belingon :Imanari defeated Belingon via submission (reverse heel hook) at 1:18 of round 1. *Female bout: Jeet Toshi vs. Nicole Chua :Chua defeated Toshi via submission (rear naked choke) at 2:07 of round 1. *Lightweight bout: Kim Hock vs. Major Overall :Kim Hock defeated Overall via technical submission (rear naked choke) at 3:18 of round 2. *Bantamweight bout: Jiang Long Yun vs. Yodsanan Sityodtong :Yun defeated Sityodtong via technical submission (rear naked choke) at 4:28 of round 1. *Lightweight bout: Danny van Bergen vs. Richie Whitson :Van Bergen defeated Witson via submission (armbar) at 1:19 of round 1.