If you liked the Battle Athletes Victory anime, the Anime-Planet community thinks you'd like:
Sora is a sixteen year old girl who has travelled to the US to join the Kaleido Stage, one of the greatest circuses in existence. However, as luck would have it, she arrives to the audition late, which almost costs her the chance of a lifetime. Fortunately, she manages to join the Kaleido Stage anyways due to the compassion of Kalos, the owner of the troupe. With the help of her friends and Fool, the perverted spirit of the stage who has the ability to predict the future, Sora will overcome trials and tribulations and she struggles to become the Kaleido Star.
Both Battle Athletes and Kaleido Star focus on a young girl with extraordinary but untapped ability, while the antagonists of both series are uncannily similar in how their relationship with the main character serves to spur her on towards greatness. "Try your best" and "give it your all" are the key themes in both series as well.
Misaki Suzuhara is a young girl who traveled to Tokyo to live with a relative, but ended up becoming involved in the greatest game of all time: Angelic Layer! In this fast-paced competition, players customize dolls and fight them in arenas of all sizes, hoping to gain experience and perhaps win the greatest tournament of them all! With new friends to meet and new enemies to defeat, the best time of Misaki's life seems to be just beginning. Join Misaki as she struggles to be the best, even in the face of overwhelming odds...
Naruto Uzumaki is a young ninja who bears a great power hidden inside him, a power that has isolated him from the rest of his village. As such, his only dream is to become the Hokage - the most powerful ninja, and leader of the village; but first he needs to graduate! With his inability to perform even the most basic ninja techniques, it seems that all Naruto has going for him is his determination to succeed no matter what. Teamed up with the genius Sasuke, book-smart Sakura, and their team leader Kakashi, Naruto embarks on his quest to become the Hokage. But with outside forces posing a threat to the entire Hidden Leaf village, Naruto discovers that he must become much stronger if he ever wants to realize his dream and protect the friendships he's forged.
Battle Athletes and Naruto are in different genres when it comes to "sports". However, there are some similarities between the two.
The main one that comes to mind is that the main characters (Naruto and Akari) are similar when it comes to being "dead last" in their chosen field. Naruto started off being last in pretty much everything, but retains the same upbeat attitude. Whilst with Akari, she may be dead last but she has this attitude about her to be kind to everyone.
The two main characters are hardworking and a genius in their profession. And they also appear to gain their burst of power to be the best through the support of their friends.
Meet Ryoma Echizen, the cocky prince of tennis. He comes to Japan from America where he is known as the Prince of Tennis – but that is no surprise considering he is the son of the former tennis pro, Nanjiroh Echizen, otherwise known as the Samurai! Upon transferring to the school Seishun Gakuen, he meets the regulars of the tennis club, and becomes the first freshman to become a regular; but he has a lot to learn yet about being a tennis star. Ryoma, along with the rest of his teammates, aspire to win the Nationals; but first, they must defeat the other teams which stand in their way!
Battle Athletes is similar in the way that Battle Athletes is a running anime revolving around conditioning your body to become the best it can be - while competing with others to become #1.
While in POT, the characters are already the best (but still trains to become even better), in Battle Athletes the main character is pretty much dead last.
It is the year 2356 AD, 189 years after a shockwave from a distant supernova decimated the Earth. Since that fateful day, humanity has begun training for a final mission to protect the planet from the inevitable oncoming 2nd shockwave - a mission whose failure means the annihilation of mankind. For Katase and her friends, their training at the foundation Stellvia is just the beginning of an adventure that could lead to saving the world, or seeing its end...