How to counter Yorick
Let us take a look on how to beat Yorick. We will look at champions who are strong against Yorick and who are weak against Yorick. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Top champion who counters Yorick. You can already win in champion select with the right counters for Yorick. If you want to know how to counter Yorick then you need to take into account the best picks vs Yorick and the worst picks vs Yorick. This Yorick counter data is based on matches played by Pros on patch 14.9 and previous ones. It is important to see whether Pros counter picked Yorick or whether they played as Yorick.
Champions used by Pros to counter pick Yorick
Looking at the matches from Pros (see table Pros counter picked Yorick) we can see that they picked 
Twisted Fate most often to counter pick Yorick. The matchup Twisted Fate vs Yorick occured 4 times. Yorick has 3 wins and 1 losses in this matchup. Learn how to counter pick Twisted Fate to get another perspective on the data.
Lane outcome for Yorick
When looking at Yorick 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 Yorick. The lane outcome of Yorick consists of three outcomes: Win, Loss or Draw. Let's take a look of Yorick 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 Yorick.
Conclusion
Analyze the available data and learn how to beat Yorick. To master Yorick take also a look on Yorick builds and runes for Yorick. Good luck, Summoner!