Woo-sang is a national swimmer who's always pursuing the number one spot. Won-il is a swimming prodigy who stopped participating in the sport, and now wants to make a comeback. Not only do they become rivals, but they also fall for the same girl, Jung-eun, an aspiring musician who is their childhood friend. The three lifelong friends suddenly find themselves having to juggle love, friendship, and competition, as they undergo the rite of passage of growing up.

Akira always recklessly runs head-first at any problem. Having just transferred into Nanjou High's part-time evening classes, he picks a fight with the full-time students' baseball club, a favorite for Koushien who are monopolizing the playing grounds. In order to challenge the full-time baseball club on equal footing, Akira will aim for Jinguu, the home of "the other Koushien" for part-time high school students!

Volume 2 includes the oneshots Inochi no Mound and Mou Hitotsu no Koushien.

From Shoujo Sense:

Sono wants to change, so she can get a boyfriend in high school. But sleeping in and late on her way for the opening ceremony, she runs into Aona, who wants to change too. Will this fateful encounter ruin(?) Sono's chance?

Chika has always been a negative girl, one day Shimizu-kun (the cute guy from the class next door) confesses to her, since that time, she began to question that mindset ~

Masato kyobashi suffering from a illness which does not allow him to do any strenous activity becomes the manager of the school's swimming club.
It is a manga about his everyday life in the swimming club surrounded by beautiful girls.

Ever since he was young, Miharu has suffered from phantom pains. When his divorced parents decide to reunite after 15 years of separation, he discovers the exact reason why: his younger brother, Natsu. Apparently, he and his brother are astrological twins. Miharu feels Natsu's pain, but... Natsu doesn't feel Miharu's? That's just not fair!

A short one-shot about a girl name Tchie as she reminsces the time she had with her two best friends.

From Vices and Devices:
Wakamiya and Anzai met five years ago during a basketball game. Impressed by his playing, Wakamiya continued to be inspired by Anzai, who he looked up to. Five years later, he finally manages to get into Anzai's elite university in the hopes of playing basketball with him, but by then Anzai wasn't playing anymore...

Genzo Wkabayashi and Taro Misaki invite, the creator of Captain Tsubasa series, to travel in Europe.

This was the root of everything, the debut work of Takahashi sensei, a nostalgic memory. The story of Genzo Wakabayashi and a boy named Tsubasa Taro.

"You, want to join the track and field club?" Kourin-senpai's words decided the outlook of Fuuko's adolescence. Discovering the joy of running, with Takeo and Kiichi who joined the track and field club together with her, under vigorous training they sweat on the track everyday. Before long, her feelings towards Kourin-senpai's changes from admiration to love... Becoming a sparkling light and running through, an adolescent athletic story starts passionately!!

From AnimeCouncil²:

After establishing contact with extraterrestrial civilizations, it was found that humans were the only race to develop various sports. The number of alien sports fans grew dramatically, and the most fanatic of them regularly harass stadiums by taking part in a game, or by demanding a good show, etc. Finally, a treaty was settled, ruling all interferences towards other planets' cultures illegal. Rabbit Force, a group of rabbit-themed henshin girls, became responsible for enforcing the treaty and capturing any offenders.

Enjiro is a talented baseball player, but has to quit due to a 100 million yen debt. Komado's family runs Benten High School, but the school is on the brink on bankruptcy and (for some strange reason) the only way to save it, is to win the National High School Baseball Tournament (a.k.a the Koshien Tournament).
Seeing Enjiro as their savior, Komado offers to pay him 100 million yen, if he joins the school's baseball team and wins the Koshien Tournament.

Love can be obsessive. Like wanting to rip the wings off a butterfly. Chouko has been in love with Taichiro for a long time. Taichiro and Chouko have known each other since childhood. At one point, Taichiro became very candid and told Chouko that he hated her so much that he wanted to kill her. Even so, Chouko's desire toward him never really changed. One day, a senior in her athletics club confessed to her. Filled with burning jealousy, Taichiro also confessed to Chouko. Their insecure, but very obsessive love begins.

An extra prequel can be found inside of Yoru Koi.

From MangaHelpers:

The very tall Ryudo Kagetora aims to be the best basketball player in Japan! He has chosen a formerly famous basketball high school, in order to bring it to new glory. He also dislikes girls, ever since a girl beat him at basketball in grade school.

There is also another new ace player joining the basketball team, Ichinomiya Chiaki. However, Chiaki was an ace on the middle school women's basketball team. She becomes a man when she's on the basketball court, and she was kicked out of women's basketball team when her quirk is revealed. Ryudo learns her secret, and reluctantly becomes her ally and roommate! [tethysdust]

From Tokyopop: Anya, the new girl at Lucrece High, just isn't fitting in. Her dream is to join one of the school's elite sports teams, but when she tries out, she's instantly rejected! Anya doesn't get mad, though--she gets even. When she meets other "misfits" who've been similarly written off, they form their own soccer team, complete with cool, edgy uniforms. They may not be the most experienced, but they've got something no other team has: style. Say hello to the world's first Gothic-Lolita soccer team!

N/A

Homare doesn't succumb to her father's disappearance and her mother's illness and works hard to inherit the tumbledown inn with hot springs. What will happen to the firm rule of no love!?

Nine is the number of the best striker in soccer. Given the number 9 in the Megumi High soccer team, Fujiyama Kazuya is a striker with a parallel belief that a draw in a game has no meaning. To him, if you don't win, then there's no sense in playing at all. Despite that kind of mentality, their team has never won a game as of yet. How far forward will the boy who has never been victorious--but even so, is determined to win--reach when a mysterious man called Kuniyoshi Utagawa, who has a liking for the number nine, makes his appearance?

Goal Den Age is a manga that was published in serial SPECIAL soccer cartoon.

From ryColaa:

Akiyama first came across seeing Hana in the corner of the television screen when some nameless female kickboxer was being interviewed. Since then, he was smitten and went to all three of her matches, but then all of a sudden, she stopped competing and he became at a loss as to what to do. But then he runs into her by accident on the street on his way home from work and discovers that this woman, who wants to become the world champion, is far more complicated than he could have ever imagined…