ROH World Championship
... that no professional wrestler has held the ROH World Championship twice during its seven-year existence?
... that no <a href="./Professional_wrestling" id="mwB1w" rel="mw:WikiLink" title="Professional wrestling">professional wrestler</a> has held the <b id="mwB10"><a href="./List_of_ROH_World_Champions" id="mwB14" rel="mw:WikiLink" title="List of ROH World Champions">ROH World Championship</a></b> twice during its seven-year existence?