A collection of stories:

1-3. Tadashii Ace no Kouryakuhou
a.) Hiroto Fujiki is the ace on his high-school baseball team. He takes an interest in one of his groupies, only to find out that "she" is not who "she" appears to be.
b.) Ayumu Tsumori is acting as the manager of his school's baseball team, and he borrows a book from his sister to help improve their chances in an upcoming match. Following the book's instructions, Ayumu starts cross-dressing for the team.
c.) Masaki Mizuhara fills in on his sister's baseball team, and catches the eye of the team's ace pitcher Hirona Fujiki, the sister to Hiroto from the first oneshot.

4. Hypnotism Trick
When Touri Hirahara is hanging out with his two friends Kashiwagi and Kunieda, Kashiwagi says he can use hypnosis, so Touri decides to fake being hypnotized. However, things get out of hand when Kashiwagi "hypnotizes" him into believing he's a girl.

5. Ani Tsura
Kazuki Hasegawa started drifting apart from his younger brother Kazuomi after he started getting interested in anime, specifically a certain magical girl anime he's particularly obsessed with. Kazuomi has been doing bad on his tests, so Kazuki agrees to dress up as Kazumi from the magical girl anime so that he'll put more effort into studying.

6. Khaki P to Sumire-hime
Rei Kawasumi is the vocalist of his high school band Violets, but they're not very popular, so Rei goes to ask the advice of Haruhiko Tsuchiya, a popular composer who posts his songs online under the name Khaki P. Tsuchiya tells Rei that to gain popularity, he has to not only cross-dress, but also sound and act like a girl.

7. Moshi Bare
Rin Aihara transfers to a new school, but tries to keep her intense love of baseball a secret.

The series, set in Saitama, follows the story of Ren Mihashi. Mihashi was the previous ace pitcher in his middle school's baseball team, but it seems that he only got the position because his grandfather was the owner of the school. His teammates (especially the team's catcher, Hatake) hated him, and they always lost their games. Mihashi is thoroughly convinced that he is a lousy baseball pitcher, and feels guilty because he believes that he is responsible for all the losses. Mihashi graduates through middle school with extremely low self-esteem. But in truth Mihashi is really a hardworking and skillful pitcher, and the main reason why his team always lost all the games is because of bad cooperation, because his teammates never talked about the game with him, and they did not try to come up with a plan or strategy to fight against their rivals. Mihashi then transfers to Nishiura High School with plans of quitting baseball because he thinks he is not good enough to succeed at it, though he still loves the game deeply. However, he is dragged into Nishiura's baseball team by their coach, Momoe, while watching the team training outside the field. Assisted by his new teammates (and especially the catcher, Takaya Abe), he grows in stature, confidence and skill, helping his team excel with his own abilities.

Won the Kodansha Manga Award for general manga in 2007. Won the Creative Award at 10th Tezuka Osamu Cultural Prize in 2006.

Yawara Inokuma is a talented judoka raised and trained by her grandfather Jigoro. Her grandfather says she's supposed to become the hope of Japan's judo team in Seoul in 1988, but she has different plans: to finish high school and find a boyfriend... like all her friends. But being a normal girl and an Olympic champion are two different things. Which path will she choose to follow?

Note: Won the 35th Shogakukan Manga Award for general manga in 1990.

After more than 2,000 years, Nomi no Sukune's successor is born. This time, Baki will challenge the god of sumo.

Ahn Shiyun is a pitcher who doesn’t mind his team losing streak, as long as he can play baseball. After continuing his dream in middle school, his life begins to change when he meets Baek Tae-Oh, a catcher of the opposing team. This is the story of amazing people who can throw powerful winning shots at the top of high school baseball's elite!

Maruo Eiichirou (Ei-Chan), a first year honor student, one day decides he's unhappy with the way things are and lacks exercise. His mother gives him a flyer for the local Tennis Club and he decides to check it out. He's instantly captivated by it. With no prior experience and poor physical conditioning, join Ei-Chan as he embarks on a tennis journey using his smarts, dedication and work ethic.

Note: Won the 38th Kodansha Manga Award in the Best Shōnen Manga category in 2014.

The love within ice dancing.

Seth Kwon was a born fighter. But due to his promise with his mother, he decides to stop fighting, even in self-defense... Everything changes when his father dies and leaves him with a single message: "Stop getting your ass kicked".

Continuation of Daiya no A - our protagonists continue to advance at Koshien, the biggest high school baseball tournament in Japan.

Riku experienced a lot of pain and tragedy in his early life. After his father's death, a former-boxer Yakuza man taught him how to do a basic punch, and that punch saved his life when he had to defend himself from his mom's drug dealer. He ended up taking the drug dealer's life, marking him as a killer. Criminals continued to come after him, leading to more tragedy for the people who attempted to care for him. All of this drove him to ask that same former boxer to teach him to become stronger, which led him to a rundown gym, his door to the world of pro boxing!

Aikawa Kazuhiko was the captain of Tendoji high-school prestigious basketball team. He moves into a new town to attend Mizuho high school and joins its basketball team. However, Mizuho high's basketball team is far from being prestigious, in fact, it's a now defunct basketball team. Nevertheless to say, Kazuhiko's presistence, passion and basketball skills inspired other team members of the dysfunctional basketball team to gear up and start practicing again.
The aim is to play in the national tournaments where all young basketball players meet their opponents in basketball competition. The tale of youth of five protagonist: Fujiwara Takuya, Ishii Tsutomu, Dobasi Kenji and Aikawa Kazuhiko have just began along with the live of Mizuho high-school basketball team.

Ukyo Ozora came from Brazil, holding up his Musashiri Tenryu, a special fist created by Miyamoto Musashi. As soon as you come to Japan, defeat the giant Rick who defeated `` Hazinkai '' karate and get attention at once!

From Viz:

What do you do when a team of evil superpowered wrestlers from another planet threatens the health and safety of the Earth? Organize a team of GOOD superpowered wrestlers, of course! Kid Muscle, the son of legendary wrestler King Muscle, rockets to Earth and finds an evil wrestling gang called the DMP tearing the place apart. The punks on the DMP are the weirdest, nastiest, most outlandishly powerful musclebound freaks the galaxy has ever known. Kid Muscle's only hope: form a team that's even wilder. Lazy and cowardly, the Kid sure doesn't look like the universe's last great hope, but when something upsets him -like, say, EVIL - he busts out in muscles just like his old man! The only possible result is earthshaking, bodyslamming, ultimate-powered action that sends our entire planet sailing over the top rope!

His father is doing time for murder. His brother was arrested for murder. The second son of the family, Ryoga Ishida, is under suspicion of being involved with his brother. Under his fathers order he takes on his boxing pro test.

In the second half of the 2nd century, Naru, a warrior from the state of Koryo, was sold as a gladiator-slave to the Roman Empire and waged a desperate struggle for freedom.

A world in which Korea is the global capital of combat sports. At Nam-Il High School where the best and most talented students of martial arts reside, Jiu Ji-Tae suddenly finds himself thrust into their midst despite being a total weakling. By neutralising his physical shortcomings through jiu-jitsu, can he rise to the top of the fight classes?

One day, Akio Asakura, a third year high school student, is driving his Fairlady Z (Z31) and is challenged by Tatsuya Shima, a doctor, in his black Porsche 964 Turbo (nicknamed the "BlackBird"). With a friend in the passenger seat and two girls in the back, Akio pitifully tries to win, but is defeated. Determined to become faster, he goes to the junkyard to buy parts for his car, when he sees a pristine, unscratched midnight blue Fairlady Z (S30) in the junkyard. Intrigued as to why such a machine is about to be junked, he buys it. He soon finds that the car is unnaturally fast due to a tuned L28 engine, bored and stroked to 3.1 liters combined with twin turbos, which produces 620bhp. He also finds that all of the car's previous owners had unfortunate accidents in it, starting with the first owner's death. The manga follows Akio's various encounters, though the central plot revolves around his constant battle with the BlackBird for superiority.

Note: The story gets its roots from the actual street racing that occurs on Tokyo's Shuto Expressway, one stretch of which is known as the "Wangan", literally meaning "bay side" (although it is generally used to refer to the freeway), the longest, straightest road in the entire country. Of course, there's also lots of traffic to contend with, including a fair number of heavy trucks. Because of this, the action is inherently hazardous, and wrecks are common. Blown engines are also a frequent hazard, especially with the extreme-high power engines.

Won the Kodansha Manga Award for general manga in 1999.

Kokura Hikari is a first-year high school girl who loves rifle shooting. She entered Chidori High School because it had a shooting club, but finds that the club had been disbanded. She had only one day to find enough members to reform the club, but luckily was able to find three other first-year girls who she had met at a competition in middle school.

Thus begins the daily activities of the Chidori High Shooting Club.

Rising Sun will revolve around Tsubasa as he aims to participate in the Olympics as a representative from Japan.

Ryuu Ichijou, a boy who dreams of joining Japan's national soccer team. Ryuu is called a genius soccer player, and his aspirations seem within his reach, but when he is in elementary school he gets hit by a car while protecting his friend, and must face two years of grueling rehabilitation. Story focuses on Ryuu as he joins high school soccer club and works through the remnants of his injuries to achieve his goal.

The manga won the Shogakukan Manga Award for Best Shōnen Manga at the 60th Shogakukan Manga Awards.