Go Phish is an online song-guessing game in which users compete to correctly predict the most songs that will be played at a Phish show.

On any particular night, you can submit up to 10 guesses - 9 regular guesses and one 'encore' slot. Points are based on the frequency (average gap) of the songs, awarding more points for more uncommon songs. A guess in the 'encore' slot receives 3 additional bonus points if the song was played as an encore.