Closest I scored it was 8-4 GGG.
GGG clearly won, can't see a case for Canelo at all. You can't win a fight fighting and spurts and for the most part lying on the ropes defending. Look how the media scored it.
Bryan Graham (Guardian UK) ------------> 116-112 GGG
Dan Rafael (ESPN) ------------------------> 116-112 GGG
Bob Velin (USA Today) --------------------> 116-112 GGG
Kevin McRae (Bleacher Report) -----------> 116-112 GGG
Shaun Al-Shatti (MMA Fighting) ----------> 116-112 GGG
Ryan Frederick (Wrestling Observer) ----> 116-112 GGG
Patrick Stumberg (MMA Mania) ----------> 116-112 GGG
Kevin Mitchell (Guardian UK) ------------> 116-113 GGG
Jordan Breen (Sherdog) ------------------> 115-112 GGG
Kevin Iole (Yahoo) ------------------------> 115-113 GGG
Will Esco (Bad Left Hook) -----------------> 115-113 GGG
Phil Murphy (ESPN) -----------------------> 115-113 GGG
Mike Harris (SI) ---------------------------> 115-113 GGG
Paul Fontaine (Wrestling Observer) ------> 115-113 GGG
MMA Brazil ---------------------------------> 115-113 GGG
Sean Sheehan (Severe MMA) -------------> 115-113 GGG
Rob Tatum (Combat Press) ----------------> 115-113 GGG
Patrick Wyman (Bleacher Report) ---------> 115-113 GGG
Lennox Lewis ------------------------------> Golovkin
Teddy Atlas --------------------------------> Golovkin
Enzo Macarenelli ---------------------------> Golovkin
James Brady (SB Nation) ------------------> Golovkin
Steven Muehlhausen (Sporting News) ----> 114-114 Draw
Gilbert Manzano (Denver Post) -----------> 114-114 Draw
Boxing Clever (Seen) ---------------------> 114-114 Draw
Associated Press --------------------------> 114-114 Draw
Lance Pugmire (LA Times) ----------------> 114-114 Draw
Chris Mannix (Yahoo) ---------------------> 114-114 Draw
Gareth Davies (UK Telegraph) -----------> 116-112 Canelo
Seems like the vast amount of people agree with the GGG win.