Less than 104 titles have been won by one of the Old Firm teams out of the less than 122 championships played , with Celtic having under 50 titles .
Of the 122 championships played , 104 ( 85 % ) have been won by one of the Old Firm with Rangers ahead on 54 titles to Celtic 's 50 , and 19 between ten other clubs ( including a shared title between Rangers and Dumbarton ) .Although there have been brief periods when silverware went elsewhere , there have also been long spells of domination by each Old Firm club , the longest run of 9-in-a-row being first set by Celtic between 1966 and 1974 , matched by Rangers between 1989 and 1997 .
Old Firm