The game simulator is really weird right now but they are working on it. You lost the game because your opponent grouped mid faster than you did. Therefore you lost two inhibs and superminions (if they exist) are really strong right now and your team was occupied with defending the base.
1
Hey thanks for your answer, but I am already grouping at 15 minutes, he can't be grouping earlier than me..
1
Okay, well, if you watch the replay you can see that your team groups top while the enemy groups mid at ~15 and obliterates your base. That's the moment you lost the game. Unfortunaly there's probably nothing you can do about it but wait for an game simulator update to come out.
1
Well thats really unfair and will probably the reason I lose tonight :( Although my adc and mid laner always go like 20/1
