How to counter Lee Sin
Let us take a look on how to beat Lee Sin. We will look at champions who are strong against Lee Sin and who are weak against Lee Sin. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Jungle champion who counters Lee Sin. You can already win in champion select with the right counters for Lee Sin. If you want to know how to counter Lee Sin then you need to take into account the best picks vs Lee Sin and the worst picks vs Lee Sin. This Lee Sin counter data is based on matches played by Pros on patch 15.12 and previous ones. It is important to see whether Pros counter picked Lee Sin or whether they played as Lee Sin.
Champions used by Pros to counter pick Lee Sin
Looking at the matches from Pros (see table Pros counter picked Lee Sin) we can see that they picked 
Viego most often to counter pick Lee Sin. The matchup Viego vs Lee Sin occured 102 times. Lee Sin has 50 wins and 52 losses in this matchup. Learn how to counter pick Viego to get another perspective on the data.
Lane outcome for Lee Sin
When looking at Lee Sin 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 Lee Sin. The lane outcome of Lee Sin consists of three outcomes: Win, Loss or Draw. Let's take a look of Lee Sin 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 Lee Sin.
Conclusion
Analyze the available data and learn how to beat Lee Sin. To master Lee Sin take also a look on Lee Sin builds and runes for Lee Sin. Good luck, Summoner!