The block in which the above post is included has a merkle root of 9efdb8432eed0aa49d86f0bd329cbbbcdd5abf5d.
To find the winner we:

1. Convert the merkle root into base 10:
   9efdb8432eed0aa49d86f0bd329cbbbcdd5abf5d = 907678681847300198099751152876077633773116243805.
2. Compute the residual after dividing by the number of tickets: 907678681847300198099751152876077633773116243805 mod 916 = 505.
3. This is the winning ticket, held by @havok777.

Congratulations!