Surprisingly enough no one noticed brackets for challenger league were posted on the wcs website.
Round 1 matches:
Goswser vs NesTea
Heart vs XY
Drunkenboi vs Neeb
HyuN vs puCK
Capoch vs Top
Suppy vs Hack
ViBE vs Sen
HuK vs Arthur
MajOr vs ByuL
mOOnGLaDe vs Tilea
Apocalypse vs Center
Snute vs KiLLeR
HwangSin vs Sound
Hellokitty vs theognis
HerO vs SeleCT <-my most anticipated match
TheStC vs State
2013 WCS Season 2 America/Challenger