Ace of the Diamond
ダイヤのA
We checked 8 streaming services in India on 04 Jun 2026 at 15:31 IST
About
Scouted for his potential, brash left-handed pitcher Eijun Sawamura joins baseball powerhouse Seido High to become the undisputed ace of the team.
Cast
Seasons
Season 1
Season 2
Coach Kataoka takes the failure to reach the nationals upon himself as some shortcoming in himself. With the fall tournament presenting a new chance to reach the nationals, the team strives to overcome gaps left by the third years' absence. As they strive to improve, they retain the hope of making it to the nationals and keeping their treasured coach from retiring. The battle to hold the position of ace between Sawamura, Furuya and Norifumi continues bringing new strength to the team.
Act II
Eijun Sawamura finally makes his first appearance at the spring invitational! He wants to restore Seido’s reputation as a first-rate team and make them national champions! Seido High School Baseball Club’s new run is about to begin!
Act II -Second Season-
Seido High's star pitcher, Eijun Sawamura, has finally earned the prized ace uniform, but this summer is his last shot to lead the school's baseball team to victory. He and his stoic teammates Furuya, who battles injury, and Miyuki, who anchors the team as captain, will hold the rope through every curve ball that comes their way in the tournament.
Episodes
Season 1
The One Pitch
Game set. Eijun Sawamura, the pitcher of a novice junior high baseball team, meets with a bitter walk-off loss. For Sawamura, that became his last game in junior high, so he sets a new goal of going to the nationals in high school with his teammates. As he begins his hard quest on studying, a guest arrives unannounced. Her name is Rei Takashima, and she is the assistant director of the prestigious Seidou High School Baseball Team. Takashima invites Sawamura to Seidou after seeing his potential, but Sawamura's reply was far from what she had expected.
Partner
Kazuya Miyuki becomes the catcher for Sawamura in a contest against Seido's dangerous clean-up batter, Kiyokuni Azuma. As Eijun tries to pitch down the middle, he finds himself tense and unable to control the ball. Kazuya immediately calls time and comes out to give him some words of encouragement. The words have the desired effect as Eijun finds more control than ever before and unveils a dangerous weapon he didn't know he had. Seeing how people like Kazuya can alter his pitching, Eijun decides to come to Seido as long as he can become the ace of the team.
Not Qualified to Be a Pitcher?
Eijun is nervous about rooming with older teammates, but they make him feel a too little at home on his first night. Eijun ends up oversleeping and shows up late when it's time to meet Coach Tesshina Katoka, a former Japanese pro pitcher. Miyuki also shows up late, but he uses Sawamura as a decoy to sneak into his line. Katoka shows no mercy and says Eijun can never become a pitcher if he can't show up on time. He also makes Miyuki run laps. Sawamura is determined to prove he can be the ace though, so Coach Katoka gives him a special challenge, saying until he can complete this challenge, he can't play in a baseball game for Seidou.
Are You Like Me?
Seido faces off against Ichidai Third High School, the school that beat them last year. While their top-level offense rakes in runs, the ace Tanba struggles, and the game turns into a batting contest. However Sawamura isn't present. Instead he is training back at school. During his training Furuya, another first-year pitcher, approaches him. Showing sympathy to Sawamura's peculiar training method, Furuya offers to play catch with him. Sawamura is in a cheery mood with Furuya's kindness, but the speed of Furuya's throws far exceeds his expectations.
A Clash
Coach Katoka, or Shades as Onoda calls him, organizes a game between the first years and the non-starters on the second and third year teams. The goal is to determine who will join the starters for upcoming practice games. When Onoda comes across Katoka in the bath, the coach gives him one final chance to answer his question. After the answer is given, Onoda is allowed into the upcoming game, but when he starts as an outfielder, it could spell doom for any chance he has on the varsity team.
Head to Head
Thanks to the words of fellow first year Haruichi Kominato, Eijun makes it on base. Next Haruichi promises to bring him home and get the first years a run. Haruichi proves to be a brilliant batter, and thanks to his spring Eijun scores. However the first years quickly get three outs, and Coach Katoka says he will call it a game unless all the first years agree to continue. Most want to drop out, but thanks to words of encouragement from Eijun they decide to continue. Eijun is placed on the mound, and Hariuchi is placed at shortstop. The two seem to be wroking effectively together against the older students until Eijun's roommate comes to the plate. Can Eijun find a way to strike out his roommate, who is the #4 hitter for the JV team?
The Two Batteries
The game concludes, and Furuya and Masuko are promoted to varsity while Eijun and Haruichi are promoted to JV. Along with the promotion comes additional pitchers training for Furuya and Eijun. However their training can only be done with the partners that Coach Katoka assigns them. Furuya is assigned to work with Miyuki while Sawamura is assigned to work with Chris. However instead of catching Eijun's pitch, Chris continually gives him additional work that isn't pitching, making Eijun think the coach has gotten the last laugh and that he won't succeed at Seidou.
The Truth About Chris
Chris continues to leave practice early and give Eijun additional workouts. Eijun believes Chris is slacking off and has given up on making the first string, but what makes him the most mad is when Chris tells him he will never be the ace as long as Furuya is on the team. Rei Takashima reveals she was the one who assigned Eijun to work with Chris because of his knowledge of the game, and when Eijun bad mouths Chris he ticks off Miyuki. Rei ends up taking Eijun to see one of Chris rehab practices and reveals he is the only man Miyuki has never beaten. Eijun realizes Chris was trying to make it where he wouldn't get hurt and begs Chris to teach him baseball.
Where does Ace of the Diamond rank today?
Ace of the Diamond is #156 on the Bowood.TV Daily Streaming Charts today.
- Highest: #156
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Watch Ace of the Diamond Online Free — All Episodes in HD
Stream Ace of the Diamond online free in HD on Bowood.TV. A well-rated animation series originally produced in Japanese and released in 2013, it's earned a solid 7.9/10 from 73 viewers worldwide.
About Ace of the Diamond
Scouted for his potential, brash left-handed pitcher Eijun Sawamura joins baseball powerhouse Seido High to become the undisputed ace of the team. Across 4 seasons and 185 episodes, originally airing on TV Tokyo, with status "Returning Series".
Ace of the Diamond Cast and Characters
The cast features Ryota Osaka (as Eijun Sawamura (voice)), Takahiro Sakurai (as Kazuya Miyuki (voice)), Nobunaga Shimazaki (as Satoru Furuya (voice)), Natsuki Hanae (as Haruichi Kominato (voice)), and Shintaro Asanuma (as Yoichi Kuramochi (voice)). Their performances are a major reason Ace of the Diamond has built such a passionate audience.
Where to Watch Ace of the Diamond Online
On Bowood.TV you can watch Ace of the Diamond free — no account, no credit card, no ads in the middle of the show. We stream the full series in 720p / 1080p HD, with subtitles when available, on any device: phone, tablet, laptop, or smart TV browser.
▶ Watch Ace of the Diamond NowWhy People Are Watching Ace of the Diamond
There's a reason Ace of the Diamond keeps showing up on "must-watch" lists. What makes it work is a tone and style that's hard to find elsewhere. If you enjoy Japanese storytelling that doesn't follow the same tired beats, this is the kind of show you'll end up recommending to friends.
Frequently Asked Questions about Ace of the Diamond
Where can I watch Ace of the Diamond online for free?
You can watch Ace of the Diamond online free on Bowood.TV. Just open the page and hit play — no signup, no subscription, full HD streaming on phone, tablet, or desktop.
How many episodes does Ace of the Diamond have?
Ace of the Diamond has 185 episodes across 4 seasons. All episodes are available to stream right here on Bowood.TV.
Is Ace of the Diamond good? What's the rating?
Ace of the Diamond holds a 7.9/10 rating based on 73 reviews — well above average.
Who is in the cast of Ace of the Diamond?
The main cast includes Ryota Osaka, Takahiro Sakurai, Nobunaga Shimazaki, and Natsuki Hanae, plus a strong supporting ensemble.
Is Ace of the Diamond available in Japanese?
Yes — Ace of the Diamond was originally produced in Japanese and that's the version you'll stream here on Bowood.TV. English subtitles are provided when available.
When was Ace of the Diamond released?
Ace of the Diamond first aired in 2013.
Do I need an account to watch Ace of the Diamond on Bowood.TV?
No. Bowood.TV is free and you can watch Ace of the Diamond without creating an account. Sign-up is optional — only useful if you want a personal Watchlist or to comment on episodes.
Similar Series You Might Like
If you enjoyed Ace of the Diamond, check out Show by Rock!! Short!!, Ninjaman Ippei, Yoshimaho: Yoshi Yoshi Magic, One Morning, My Hair was in Poor Condition, and my Life Began, and HIGHSPEED Étoile.
Frequently Asked Questions
Where can I watch Ace of the Diamond for free?
You can watch Ace of the Diamond online for free on Bowood.TV. All 185 episodes across 4 seasons are available to stream in HD without a subscription, signup, or paywall. Just open the show page and press play.
How many seasons and episodes does Ace of the Diamond have?
Ace of the Diamond currently has 4 seasons and a total of 185 episodes. The series status is "Returning Series", so the episode count may grow as new seasons are released. You can browse the full episode list on Bowood.TV and continue watching from where you left off.
What is Ace of the Diamond about?
Scouted for his potential, brash left-handed pitcher Eijun Sawamura joins baseball powerhouse Seido High to become the undisputed ace of the team. It belongs to the Animation genre.
In which language is Ace of the Diamond originally available?
Ace of the Diamond was originally produced in JA. On Bowood.TV the show is available in its original JA audio. Check the player options on the watch page for available subtitle tracks.
When was Ace of the Diamond first released?
Ace of the Diamond first premiered on October 6, 2013 (2013). The show is still ongoing with new episodes being released.
All Seasons
Browse every season of Ace of the Diamond — 4 seasons in total
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