BTW, it's bad winners of previous rounds aren't displayed on Freebitco.in. It would be interesting to compare how many tickets they had. From what I remember, they had much more.
The winner of round 1 had 185 tickets. [
Ref.]
The winner of round 2 had 201,566 tickets. [
Ref.]
The winner of round 3 had 1,626 tickets. [
Ref.]
The winner of round 4 had 882,251 tickets. [
Ref.]
The winner of round 5 had 473 tickets. [
Ref.]
The winner of round 6 had 4,305 tickets. [
Ref.]