How to counter Kayle
Let us take a look on how to beat Kayle. We will look at champions who are strong against Kayle and who are weak against Kayle. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Top champion who counters Kayle. You can already win in champion select with the right counters for Kayle. If you want to know how to counter Kayle then you need to take into account the best picks vs Kayle and the worst picks vs Kayle. This Kayle counter data is based on matches played by Pros on patch 14.21 and previous ones. It is important to see whether Pros counter picked Kayle or whether they played as Kayle.
Champions used by Pros to counter pick Kayle
Looking at the matches from Pros (see table Pros counter picked Kayle) we can see that they picked 
Jax most often to counter pick Kayle. The matchup Jax vs Kayle occured 4 times. Kayle has 3 wins and 1 losses in this matchup. Learn how to counter pick Jax to get another perspective on the data.
Lane outcome for Kayle
When looking at Kayle 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 Kayle. The lane outcome of Kayle consists of three outcomes: Win, Loss or Draw. Let's take a look of Kayle 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 Kayle.
Conclusion
Analyze the available data and learn how to beat Kayle. To master Kayle take also a look on Kayle builds and runes for Kayle. Good luck, Summoner!