The block in which the above post is included has a merkle root of c78a939785d364700e0b4c862535854cd0c99159.
To find the winner we:

1. Convert the merkle root into base 10:
   c78a939785d364700e0b4c862535854cd0c99159 = 1139179523297895600329298273672602867462948098393.
2. Compute the residual after dividing by the number of tickets: 1139179523297895600329298273672602867462948098393 mod 990 = 43.
3. This is the winning ticket, held by @gruntprime.

Congratulations!