Dark Horse
After winning their match, Seido stays behind to watch Manaka's pitching in hopes of gaining a slight advantage in the quarterfinal game. Tanba remembers his past ties with Manaka and swears to return in that quarterfinal match. However Yakusi has made many changes to their lineup, including three first years in the 3, 4, and 5 spots. When the first of these first years arrives, Raichi Todoroki, he nails Manaka's best fastball out of the stadium to give his team the early 1-0 lead. Ichidai is forced to make an early pitching change, with Manaka moving to the outfield, and the game becomes a slugging contest. As inning 5 approaches, Manaka demands to return to the mound so his team can move on to the quarterfinals. Ichidai gives in, and Manaka returns with better control than before.
Aired 11/05/2014EP 31 - Dark Horse

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)