If you're looking for manga similar to Keijo!!!!!!!!, you might like these titles.
Meet Ageha, a promising successor to Japan's golden age of table tennis. He's under the tutelage of a former world champion whose granddaughter Ririka is also at the top of her game - though she's playing a more seductive sport. Both would rather die than recognize the other's talents, which is going to get interesting when they find out they're engaged!
It is said that there is a legendary catcher who can turn any pitcher he forms a battery with into a star. But this catcher requires something in return—the pitcher's soul. That is why the catcher is also known as the Grim Reaper. The pitcher will throw his soul into each pitch until that pitcher dies. But for down-on-his-luck pitcher Ryo Arakami, this may be the deal he was looking for after all!
Six years ago, following a crushing defeat, a group of friends promised that they will one day take their friend Suzuo to the Koshien. Now in their first year of high school, the friends have reunited behind the pitcher Kitaro Kitaoji to keep their promise. With Suzuo as their manager and Kitaro's signature left-handed, underhand "Submarine Pitch," they may just go all the way.
Tamano Kako and Marunouchi Gaku were the best of friends, but Gaku had to leave with his father to travel the world. However, Gaku promised that if Kako waited, he would come back in 10 years and they would go out. However, right after Gaku left the law of Takkoku was created: If you confess your love to someone, you must beat them at a game of ping pong; if you touch each other before the game, that person will be punished. If you win, regardless of the other person's feelings, you automatically go out. However, Kako is called the best ping pong player in Japan and Gaku has never played ping pong before AND he wants to be the one that confesses. How will these two people's love flourish under these conditions? Will Gaku ever be able beat Kako at ping pong?
If a telepath, a clairvoyant, a vice detective, a ninja with super reflexes, a spirit medium, an oil magnate, an extremely lucky boy, and an extremely strong man were to fight it out in a rock-paper-scissors tournament, who would you bet your money on? Just because it's a simple game with simple rules doesn't mean the matches will be simple.
Eijun Sawamura had his heart set on the middle-school national baseball championships. But his team is eliminated thanks to a wild pitch thrown by Eijun himself. He’s planning to go to high school with his teammates and try again next year when he’s scouted by the famous Seido High School baseball team. When he goes for a campus visit, he finds himself on the receiving end of a baptism by fire! His experience forming a battery with up-and-coming catcher Miyuki rekindles his passion for baseball!!
The boy’s gymnastics team at Heisei Middle School is an eye sore compared to the nationally renowned girls team. But Fujimake Shun, a first year, has big dreams: to win a gold at the Olympics. Unfortunately for Shun, having no experience in gymnastics and low athletic ability puts him behind even his teammates, let alone the world. But where he lacks in technical skills, he more than makes it up through determination and incredible fighting spirit that doesn’t seem to break no matter how big the obstacle.