How to counter Aurelion Sol
Let us take a look on how to beat Aurelion Sol. We will look at champions who are strong against Aurelion Sol and who are weak against Aurelion Sol. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Mid champion who counters Aurelion Sol. You can already win in champion select with the right counters for Aurelion Sol. If you want to know how to counter Aurelion Sol then you need to take into account the best picks vs Aurelion Sol and the worst picks vs Aurelion Sol. This Aurelion Sol counter data is based on matches played by Pros on patch 14.12 and previous ones. It is important to see whether Pros counter picked Aurelion Sol or whether they played as Aurelion Sol.
Champions used by Pros to counter pick Aurelion Sol
Looking at the matches from Pros (see table Pros counter picked Aurelion Sol) we can see that they picked 
Hwei most often to counter pick Aurelion Sol. The matchup Hwei vs Aurelion Sol occured 39 times. Aurelion Sol has 27 wins and 12 losses in this matchup. Learn how to counter pick Hwei to get another perspective on the data.
Lane outcome for Aurelion Sol
When looking at Aurelion Sol counters you will notice that win rates alone are not conclusional. Therefore we provide an overview (see table Lane Outcome) where you can see the lane outcome of Pros who played Aurelion Sol. The lane outcome of Aurelion Sol consists of three outcomes: Win, Loss or Draw. Let's take a look of Aurelion Sol lane and match outcome for specific matchups. Considering the lane outcome and the match outcome of a specific matchup, might enable you to find the right counter for Aurelion Sol.
Conclusion
Analyze the available data and learn how to beat Aurelion Sol. To master Aurelion Sol take also a look on Aurelion Sol builds and runes for Aurelion Sol. Good luck, Summoner!