Kyojin no Hoshi

The story is about Hyuma Hoshi, a promising young baseball pitcher who dreams of becoming a top star like his father Ittetsu Hoshi in the professional Japanese league. His father was once a 3rd baseman until he was injured in World War II and was forced to retire. The boy would join the ever popular Giants team, and soon he realized the difficulty of managing the high expectations. From the grueling training to battling the rival Mitsuru Hanagata on the Hanshin Tigers, he would have to take out his best pitching magic to step up to the challenge. (Source: Wikipedia)

Cross Game

The main character is Kou Kitamura, son of the owner of Kitamura Sports. In the same neighborhood is a batting center run by the Tsukishima family. Due to their proximity and the relationship between their businesses, the Kitamura and Tsukishima familes have been close for many years, with their children going back and forth between the two homes like extended family. Because Kou and Wakaba were the same age and always together, Aoba was jealous of all the time Kou spent with her older sister. Aoba is a natural pitcher with excellent form, and Kou secretly trains to become as good as she was, even while publicly showing little interest in baseball.

Dokaben

Taro "Dokaben" Yamada, who was a judoist while at junior high, enters Meikun High School and is talked into joining the baseball club. He displays his superb athletic abilities in baseball and becomes well-known as a hard hitter. He and his unique teammates establish Meikun a solid position as No.1 in the High School Baseball Championship games. (Source: nipponanimation.com)

Samurai Giants

Ban Banjou is an insolent wild boy who was raised on the rough sea in Tosa, southern Japan. He joined the Tokyo Yomiuri Giants in Japanese pro baseball league such a baseball pitcher noted for the blazing fastball and the worst control. He fights hard battles against his rival batters, developing his incredible pitching magics.

Touch

The story centers around three characters - Uesugi Kazuya, his twin older brother Tatsuya, and Asakura Minami. Kazuya is the darling of his town as he's talented, hardworking, and the ace pitcher for his middle school baseball team. Tatsuya is a hopeless slacker who's been living the life of giving up the spotlight to Kazuya, despite the fact that he may be more gifted than him. Minami is the beautiful childhood girlfriend and for all intents, sister from next door who treats both of them as equals. Society largely assumes Kazuya and Minami will become the perfect couple, including Tatsuya. Yet as time progresses, Tatsuya grows to realize that he's willing to sacrifice anything for the sake of his brother, except at the expense of giving up Minami to Kazuya. And thus the story is told of Tatsuya trying to prove himself over his established younger brother, how it affects the relationship between the three, and both brothers' attempts to make Minami's lifelong dreams come true.

Yuuyake Banchou

A transfer student only just arrives and is confronted by the school gang. One by one he defeats the gang members and challenges their leader to a fight. Each 10 minute episode aired Monday through Saturday. Note: Due to it never getting any releases outside of the runs on TV, all of the 156 episodes apart from the OP has become lost media.

Ace of the Diamond

With a stray pitch that completely missed the batter, Eijun Sawamura loses his final middle school baseball game. Frustrated by this defeat, Eijun and his teammates vow to reach the national tournament once they are in high school. But everything changes when a scout unexpectedly invites him to Tokyo's prestigious Seidou High School after seeing the potential in his unusual pitching style. Encouraged by his teammates, Eijun accepts the offer, ready to improve his skills and play at a much more competitive level of baseball. However, now surrounded by a large number of skilled players, Eijun struggles to find his place on the team. He declares that he will one day become the team's ace, but that's only if fellow first year Satoru Furuya doesn't take the title first, with his breakneck fastballs that earn him a coveted spot on the starting roster. With the addition of these talented new players to an already powerful lineup, the Seidou baseball team aims to become the best in Japan, facing off against a number of formidable foes that stand in their way. (Source: MAL Rewrite)

Shin Kyojin no Hoshi

A continuation of the popular baseball saga about the star pitcher of a professional baseball team. (Source: AniDB)

Oblivion Battery

Iron-armed pitcher, Haruka Kiyomine, and the shrewd catcher, Kei Kaname, AKA the "Skilled General," were considered to be an unrivaled, monstrous battery duo in the middle-school baseball world. They were both scouted by various powerhouse high schools across the nation, but somehow, they both ended up at Tokyo Municipal Kotesashi High School, which wasn't known for baseball at all. On top of that, other star players who had lost to that duo in the past and completely strayed from baseball coincidentally also enrolled at that school, and… Their meeting sets everything into motion once again. Their high school baseball story begins now! (Source: Crunchyroll)