Beijing Guoan is a well-known football club in the Chinese mainland, known for their strong performance on the pitch and their commitment to their fans. However, there has been some controversy surrounding the success rate of this club in recent years.

According to a report by Forbes, Beijing Guoan's success rate in the Chinese league was only 21% in the past five seasons. This means that they were not able to achieve their potential as a top-tier team in the country. The report also highlights that while Beijing Guoan has a good squad with talented players, their training methods and management have not always been effective.

In addition, the success rate of Beijing Guoan may be influenced by various factors such as the quality of their players, their home field advantage, and the level of competition. While these factors can affect a club's performance, they cannot explain why they failed to achieve the desired results.

However, it is important to note that the success rate of any club depends on many other factors beyond just its own performance. Therefore, it is difficult to blame one factor entirely for the club's failure. In fact, the success rate of Beijing Guoan is likely due to the combination of various factors that have affected their performance.

Overall, while the success rate of Beijing Guoan may not be high, it is still worth paying attention to. It shows that even though their performance might be lower than expected, they still have a lot of potential and could potentially become a successful club in the future.