User blog comment:N00bpl0x/Do others have this problem too?/@comment-6906412-20130602170358

Sometimes it is just team comp, and that they have stronger lategame than you. You also have to be aware that late game, one lost teamfight can mean the game, one bad setup or engage, etc. Sometimes it comes down to the strength of each team's wave clear, range, or poke against the enemy at towers on both sides. Sometimes you don't realize that even though the enemy ADC is 0/4, they have 100 more CS than your ADC. Are the enemies able to catch up in gold by having more tower kills or dragon kills than your team? How well do the enemy champions synergize with each other vs yours? It's a variety of factors that turn a seemingly even game towards one side or the other.