I'm getting about 1:10.. its occassionally off though.
Sometimes I'll open ~2k boxes, and get 250 tickets, sometimes i'll open 500 boxes and get 30 tickets.
I'd say I've opened about 11~12k boxes by now, and I have 1k tickets, so i'm really not doing too bad.
Toxyn - 1XX Wind/Water SM Sheep
Blyr - 1XX Bunny
Serrin - 1XX Hunter Lord