This is not a complete solution, but rather a helpful pointer for those not wanting to bother with getting all the blue ribbon challenges.
As of 11/9/16 there is currently a beneficial glitch where this unlocks with your second to last trophy as long as all that remains is this one ( and as far as I can tell from my own experience and that reported of others), and another Clash In The Clouds one.
For me, I did all the main game trophies first, then fully completed Burial at Sea 1 & 2. I then did all of the misc. trophies in this pack, and then proceeded to finish the 4 different arenas. Upon completing Emporia Arcade, I popped this trophy along with the one for completing Emporia Arcade.
I have seen others report that when they left this one and either The Ol' One-Two or Sergeant-At-Arms, this also popped along with those; again assuming that they only had one of those and the blue ribbon champ trophy left.
Edit: thanks to Reevys-91 they have confirmed this still works as of 5-28-2018. Please see his comment for further context.