Zhang Sanfeng only met Guo Jing once. Why is it that he 100 is not as good as Guo Jing?

First of all, we need to find the source where Zhang Sanfeng said that he was inferior to Guo Jing. In fact, this statement was not made by Zhang Sanfeng himself, at least it was not explained in the original work. This is a kind of rhetoric that Zhang Wuji relayed to Zhou Zhiruo in order to please Zhou Zhiruo.

The specific incident was that at that time, on a deserted island in the middle of nowhere, Zhou Zhiruo framed Zhao Min for stealing the Dragon Slayer Road with Eternal Sword, and at the same time took out Jiuyin Zhen Jing to practice. Even Zhang Wuji likes Zhao Min better, and now he likes Zhou Zhiruo better.

But Zhou Zhiruo's personality is very sensitive. He felt that Zhang Wuji didn't love her wholeheartedly, so he lost his temper and forced Zhang Wuji to coax her. Zhang Wuji was really considerate of Zhao Min, so he used various rhetoric to please Zhou Zhiruo to offset his guilt.

At that time, I thought there was internal force in Zhou Zhiruo's body, but I didn't expect it to be Jiuyin Zhenjing. Later, when explaining martial arts to Zhou Zhiruo, he said this: "It is said that Guo Jing, the father of Guo, the founder of your school, has a very dull qualification, but his martial arts is a master of a generation, and he has not yet achieved his skill."

In other words, Zhang Wuji has never seen Guo Jing's real martial arts. He heard from his great master, Zhang Sanfeng, that Zhang Sanfeng was a great master, and his old man's respect for Guo Jing was also a kind of admiration from his predecessors, so it was probably just out of modesty.

If we carefully stroke the timeline of Jin Yong's novels, we will know that Zhang Sanfeng first met Guo Jing shortly after the death of Mongolian Khan. Zhang Sanfeng has been practicing martial arts all this time, so it is inevitable that he doesn't know much about Guo Jing's martial arts. By the time he achieves something, Guo Jing will have been martyred. Perhaps it was Guo Jing's chivalrous spirit that made Zhang Sanfeng very modest when he mentioned him.