Yes, considering the amount of tickets the user had, it isn't really surprising. Hopefully he didn't buy all the tickets since the lottery amount won is less than the total value of the tickets.
I wanted to check if he has a lot of referrals, but on the stats page everything is linked to a part of the BTC adress and not to the user ID. The guy just has a lot of luck for finishing 2 weeks in a row at the third place, even though he has quite a lot of tickets.