If you liked the Inazuma Eleven anime, the Anime-Planet community thinks you'd like:
Goro Honda is a little boy who is obsessed with baseball. As a child, he watches his father, a professional baseball player, be removed from the Blue Oceans’ main team due to a shoulder injury that left him unable to pitch again. However, since his son looks up to him more than anyone else in the world of baseball, Goro's father decides that he can't quit just yet (as pitching is not the only way to be able to play baseball!). With his father's shining example, Goro decides to never give up as well, working his way into the Japanese Little League as a force to be reckoned with!
Major has much of the same enthusiasm and love of the game as Inazuma Eleven. Both have a protagonist that loves the sport. Be it baseball in Major or Soccer in Inazuma eleven. Goro in major loves baseball and has the same spirit as Endou, the spirit that is contagious to the rest of the team and brings out true potential.
Asunaro is a new student at a school with three baseball teams; the first is renowned as being one of the best in the prefecture, but the third, Asunaro’s team, is filled with the rejects and unskilled of the baseball world. As the baseball instructor deems them to be nothing but trash, he informs the team that they will be disbanded in one month – that is, until one of the players begs him to let them play a single game. They’ll be up against the first team, and if they win, they’ll get to take over the title and even work their way towards playing at Koshien Stadium. With the help of Kaido, an ex-member of the first team, Asunaro and his friends will do whatever it takes to show they’re more than meets the eye!
Winning a game of Mahjong is hard; getting the same score every time is practically impossible. So imagine the surprise of the school Mahjong club when Saki Miyanaga walks in and does just that. Despite her dislike for the game, her talent is obvious and it's up to the club members - the top-heavy Nodoka, the energetic Yuuki, the cunning Mako and the permanently in control club president Hisa - to persuade her to join the club and help them reach the Nationals. But even then, will their combined skills be enough to overturn some of the toughest high school players the country has to offer?
Both series are feature a tournament, and crazy, unrealistic, but nevertheless enjoyable "finishing moves" that completely blow away the opponent teams and viewers. The main characters are also talented in their sport (Endou in soccer, and Saki in mahjong). There are slight plot differences, but the overall enjoyment, and the feeling of wanting the character to succeed remains.
The Iron League: a place where teams of robots, under individual "owners", play various sports and duke it out in tournaments. Mach Windy is a member of Dark Prince, a team that doesn't play fair and fights dirty to win. Unsatisfied with the actions of his teammates, he defects against the will of Dark Prince's nefarious owner and joins Silver Prince: the weakest team in the league. Alongside faithful companions such as Magnum Ace and Bull Armor, Mach Windy and Silver Prince will battle against Dark Prince in games of soccer and baseball, and aim for the top!
Shippu and Inazuma Eleven are both sports anime that are clearly aimed at the kiddies. While it's true that Shippu is inhabited by mostly robots and Inazuma's cast is of the human variety, each has a very childish feel and will be aimed at the same audience.