For years I did blitz ratings for the Montreal area - at times there were 4 or 5 a week. Until the later years, all were round-robins (biggest was 36 players!). I created my first program as an assignment for a COBOL course in 1971. Regular weekly blitzes stopped about 10 years ago, but the FQE uses my ratings for the few blitz tournaments that get rated by them (22 last year; 20 so far this year)..