Rumor has it that the new number is 1000rr to get from tour legend to champion.Original number of games was 250 then 750 now 1000.My opinion this is just a money grab.Rabbit and carrot sort of thing.
750 RR from TL to Champion. I reached it in January.
I still have 600 RR to go for Tour Champion to make my 1,000. You have to get your average down to 59 also for Champion.