Complex sentence: On January 1,2010 he unsuccessfully challenged Toshiaki Kawada for the Zero1 World Heavyweight Championshipbut latter beat Bambikiller for the title on September 9,2010.
Split into simpler sentences: On January 1,2010 he unsuccessfully challenged Toshiaki Kawada for the Zero1 World Heavyweight Championship. He beat Bambikiller for the title on September 9,2010.