Other mistake: In the aerial view of the stadium that follows the intermission with the sushi chef and Genzo at his mansion, there are 23 players on the field. One is the referee, you might say. In that case, the view is missing the linesmen. (00:07:20)
No Victory in Semi Final - S1-E21
Other mistake: When Sawada scores, in the reaction shot on the various team members Kisugi is smiling/laughing instead of being angry/worried, and the player who just lost the ball is in the background. (00:10:15)
The Brothers Tachibana - S1-E22
Other mistake: Nankatsu scores to a goalkeeper that is wearing number 7 (obviously a poorly drawn 1). (00:08:25)
The Brothers Tachibana - S1-E22
Other mistake: When the Nankatsu player is injured, Genzo reacts to the event watching it happen through the TV - but he shouldn't be there watching the match, he said he was going to train instead. The next episode in fact shows that he missed the goal and therefore the injury. (00:21:40)
Ryo Shoots an Own Goal - S1-E23
Other mistake: Ishizaki's entrance is completely different from the ending of the previous episode; he just walked in while Tsubasa was talking with the Tachibanas, while in this episode he stumbles and everyone including Tsubasa is looking at him. (00:03:30)
Ryo Shoots an Own Goal - S1-E23
Other mistake: After the own goal, Misugi and Yayoi are talking. Behind Misugi, someone is holding a small book open without using their hands. (00:15:30)
The Fight for the Final - S1-E24
Other mistake: When he dismounts from the back of the truck, the Nankatsu supporter in a yellow shirt has much more intense shade of yellow, and he is also taller. (00:20:50)
The Fight for the Final - S1-E24
Other mistake: The Tachibana twins caught the ball at the end of the previous episode, but ball possession is for Nankatsu at the beginning of this one.
The Fight for the Final - S1-E24
Other mistake: At the end of the previous episode, Taki crossed for the corner, and the keeper punched the ball before Kisugi could head it. This episode shows that Taki crossed for Izawa instead.
The Best Keeper of the Tournament - S1-E25
Other mistake: When Nakanishi drops the football after his bold words to Tsubasa, the ball doubled in size. (00:08:40)
The Best Keeper of the Tournament - S1-E25
Other mistake: Nakanishi is giving orders from behind, where, according to the commentator, he has a clear view of all the players. We then have a quasi-POV shot, and due to the peculiar perspective choices of this anime, we can see that from Nakanishi's spot he sees basically nobody, since the players disappear past the horizon. (00:17:00)
The Best Keeper of the Tournament - S1-E25
Other mistake: In the first minutes, some events of the previous episode are repeated and certain lines (Misaki's first, about Furano) are different - Teppei Kisugi's group arrives earlier, too.