How to counter Ziggs
Let us take a look on how to beat Ziggs. We will look at champions who are strong against Ziggs and who are weak against Ziggs. Use win rate, gold difference and creep score difference at minute 10 to find the best 
Adc champion who counters Ziggs. You can already win in champion select with the right counters for Ziggs. If you want to know how to counter Ziggs then you need to take into account the best picks vs Ziggs and the worst picks vs Ziggs. This Ziggs counter data is based on matches played by Pros on patch 14.22 and previous ones. It is important to see whether Pros counter picked Ziggs or whether they played as Ziggs.
Champions used by Pros to counter pick Ziggs
Looking at the matches from Pros (see table Pros counter picked Ziggs) we can see that they picked 
Kai'Sa most often to counter pick Ziggs. The matchup Kai'Sa vs Ziggs occured 34 times. Ziggs has 19 wins and 15 losses in this matchup. Learn how to counter pick Kai'Sa to get another perspective on the data.
Lane outcome for Ziggs
When looking at Ziggs 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 Ziggs. The lane outcome of Ziggs consists of three outcomes: Win, Loss or Draw. Let's take a look of Ziggs 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 Ziggs.
Conclusion
Analyze the available data and learn how to beat Ziggs. To master Ziggs take also a look on Ziggs builds and runes for Ziggs. Good luck, Summoner!