This award comes down to two games: the 22-inning marathon against the Padres or the Rockies' amazing come-from-behind victory on Indepence Day.
Look at Fangraph's Win Probability Charts for these two games:
The first was a very close game; the second looked like a bottomless pit until the very end.
I didn't stay up for the entirety of the first game, as it ended around 4:30 my time (ET). But I did watch the last inning in the morning.
As for the second game, Silverblood, who attended the game, texted me this shortly after the game's conclusion: "Holy. Hell."