In the manga, Gohan never managed to defeat Goku. Their battles often ended with Goku coming out on top or the fight being interrupted for some reason.
Sasuke could be one. Given their complex relationship, there could be a situation where Sasuke's newfound power or different ideology leads him to fight and beat Naruto in a fan - made story.
Well, in a lot of these fanfictions, Stiles can get beat up due to his own recklessness. He might be so determined to solve a mystery or help his friends that he doesn't think about the consequences and ends up in a dangerous situation where he is outnumbered and beaten up. Also, there could be miscommunication. Maybe someone thinks he has done something wrong when he actually hasn't, and they take matters into their own hands and beat him up.
Maybe some new kids in the neighborhood who are trying to establish their dominance and pick on Lincoln as an easy target. They might not know much about him or his family, but just see him as someone they can bully.
It could be an antagonist character in the Septiplier fanfiction world. Maybe someone who has a grudge against Jack for some reason, like a rival in a game or a love interest situation gone sour.
Wu Zhu had displayed great combat power in Celebrating Years, and could even defeat the other four Grandmasters. Wu Zhu was a robot with the settings of a military robot. His body was made up of parts and had a continuous supply of kinetic energy. His fighting style was very simple and unadorned. He fought through precise calculations and a one-hit kill. Although the details of the beating were not mentioned, according to the description in the article, Wu Zhu's strength had indeed surpassed that of the Great Grandmasters. Thus, it could be said that Wu Zhu had the ability to beat up a martial grandmaster.
There were several reasons why the Qing Emperor beat Wu Zhu. First, the Qing Emperor had broken through the restraints of a grandmaster. His strength had greatly increased and surpassed Wu Zhu. Secondly, Ye Qingmei ordered Wu Zhu not to use his strongest weapon, the laser eye, causing Wu Zhu to be at a disadvantage in his battle with the Qing Emperor. In addition, the Qing Emperor grasped the secret manual of the King's zhenqi, making his strength even stronger. Thus, the Qing Emperor could easily defeat Wu Zhu.
There were several reasons why the Qing Emperor beat Wu Zhu. First, the Qing Emperor had broken through the restraints of a Grandmaster in the later stages. His strength had greatly increased and surpassed Wu Zhu. Secondly, Ye Qingmei ordered Wu Zhu not to use his strongest weapon, the laser eye, causing Wu Zhu to be at a disadvantage in his battle with the Qing Emperor. In addition, the Qing Emperor had mastered the secret manual of the King's zhenqi. This was also the key to the Qing Emperor beating Wu Zhu. Thus, the Qing Emperor could defeat Wu Zhu.
Wu Zhu indeed had the ability to beat up a martial grandmaster. In " Celebrating Years," Wu Zhu had displayed great combat power, and he could even defeat the other four Grandmasters. He was a robot with the settings of a military robot. His body was made of parts and had a continuous flow of kinetic energy. Even though Wu Zhu did not know martial arts, his combat power was comparable to a Great Grandmaster's and could easily beat other opponents. The specific details of the battle were not mentioned, but according to the relevant information, Wu Zhu had fought with the great grandmasters and could even beat them up. Thus, Wu Zhu indeed had the ability to beat up a martial grandmaster.