As of July 2026, Ace of the Diamond Season 1 aired in 2013 with 75 episodes — streaming now on Crunchyroll. Full episode guide and where to watch below.
Ace of the Diamond Season 1 poster
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Ace of the Diamond Season 1

2013 75 Episodes Animation ⭐ 8/10

Ace of the Diamond Season 1 has built a real following on and among viewers who do not usually seek out animation. Across 1 season, the show has had time to find its rhythm and keep it. With 75 viewer ratings on TMDB, this is not a title flying under the radar. Ryota Osaka brings more to the role than the format usually demands. There is no real reason to keep putting it off.

Part of the current wave of titles people are actually watching, Ace of the Diamond Season 1 earns its spot. Ace of the Diamond Season 1 has the visual identity that makes it immediately recognisable, and the writing to back it up. Season 1 of Ace of the Diamond includes 75 episodes. It aired from October 2013 to March 2015. This season stars Ryota Osaka, Takahiro Sakurai and Nobunaga Shimazaki. Ryota Osaka and Takahiro Sakurai lead a cast that brings real weight to the material. It was aired in 2013. The animation style is distinctive enough to be immediately recognisable, but it is the writing underneath that keeps viewers coming back for more. The consistency throughout is what elevates it — not every moment is the best, but none of them are a reason to stop watching.

Genuinely enjoyable for a wide range of viewers, Ace of the Diamond Season 1 treats animation as a delivery mechanism, not a limitation. It has built its own audience without needing a direct comparison. Short enough to finish in a weekend, substantial enough to feel satisfying. Visually distinctive and narratively ambitious in ways that hold up regardless of format. Worth watching in order from the beginning.

📡 Where to Watch Ace of the Diamond Season 1

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🇺🇸 United States
🇬🇧 United Kingdom
🇨🇦 Canada
🇳🇿 New Zealand
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🎬 Ace of the Diamond Season 1 — Episode Guide

E1
The One Pitch
2013-10-06
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 ...
E2
Partner
2013-10-13
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. ...
E3
Not Qualified to Be a Pitcher?
2013-10-20
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...
E4
Are You Like Me?
2013-10-27
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, ...
E5
A Clash
2013-11-03
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 cha...
E6
Head to Head
2013-11-10
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 Katok...
E7
The Two Batteries
2013-11-17
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 assigne...
E8
The Truth About Chris
2013-11-24
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 w...
E9
With Chagrin in His Heart
2013-12-01
Sawamura begins to follow Chris every where to try and learn more about baseball. He also sits out of some practices so he can learn how the communication of a team works. Chris finally gives in to Eijun's persistence and catches a few of his pitches. After catching them, Chris informs Eijun he must...
E10
Hone Your Moving Fastball
2013-12-08
Chris finally tells Eijun what sets him apart is his moving fastball. He reveals all the training he's given Eijun could make him the ace if he does it regularly for one year. However Eijun wants to thank Chris personally by delivering his best pitch to him in a game. One night when he's doing secre...
E11
Chris to the Field!
2013-12-15
Eijun appears to have greater speed on his moving fast ball than ever before. However his control has gone hectic. After walking the bases loaded with no outs, Coach Katoka signals for a change. Most of the team believes it will be Eijun getting subbed out. Instead Chris is inserted into the game. H...
E12
Target
2013-12-22
Chris has Miyuki join him and Sawamura in the bullpen as they try to master Sawamura's new pitching form and get him to start throwing strikes with it. Chris's father Animal shows up at the game and tries to get Chris to stop playing, believing his shoulder isn't yet healed and that he will only cau...
E13
You're in the First-String
2013-12-29
To stop the attacks on Chris, Sawamura reverts back to his original pitching form while maintaining the wall against the dangerous Naoyuki Zaizen. The results not only improve Sawamura's speed, but they start putting pressure on Zaizen and reveal an injury he had earlier. With Chris and Zaizen being...
E14
Training Camp Begins!
2014-01-12
Sawamura continues to train hard, but when Chris notices he is overworking, he has Miyuki pul lhim into the indoor training facility for some pickoff training and leg positioning training so he won't get hurt. Furuya is reminded he must trim his nails and is also forced to start pickoff training. Fu...
E15
Lead with Your Plays!
2014-01-19
The training camp continues. The first-years can barely keep up with the harsh training. As Sawamura improves little by little, he is called to Miyuki's room for some reason. There, he found his upperclassmen waiting, and...
E16
Challenge
2014-01-26
The practice game between Seido and Osaka Kiryu begins with Furuya determined not to give up any hits after remembering the coaches words, "go get obliterated today." The first batter nails his fastball deep to the outfield. A bases loaded walk gives Kiryu a 3-0 lead and prompts a visit to the mound...
E17
Games Are Fun
2014-02-02
Kiryu's ace, Hiromi Toshi, continues to dominate Seido's batters as his speed increases as the game goes on. Miyuki decides to play a game with Toshi and has Furuya pitch full out with the goal of striking out the ace. To show off more of his dominance, Furuya hits a homer off of Toshi in the bottom...
E18
I Hate It, But...
2014-02-09
Miyuki continues to try to get Sawamura to pitch inside and gain additional control, but his motivational speeches seem to have little to no effect on Sawamura. Sawamura begins to try to trust in his infielder's, and as he does so he sees his pitching begin to improve. While many runs are given up, ...
E19
Fate
2014-02-16
A 3-set of matches takes place to end the training week of hell as Inashiro Industrial vs. Seido, Inashiro Industrial vs. Shuuhoku, and Shuuhoku vs. Seido on Seido's field. Kawakami pitches the game vs. Inashiro Industrial with Miyauchi while Tanba is forced to work with Miyuki. None of the starters...
E20
Emergency
2014-02-23
The second half of the Seido, Shuuhoku match begins with Tanba unveiling his fork ball. Combined with his fastball and his curve ball Seido seems to have a new found sense of confidence. As Tanba comes to bat however, Shuuhoku's pitcher loses control of one pitch and forces an emergency cancellation...

🎭 Cast of Ace of the Diamond Season 1

Ryota Osaka
Ryota Osaka
Eijun Sawamura (voice)
Takahiro Sakurai
Takahiro Sakurai
Kazuya Miyuki (voice)
Nobunaga Shimazaki
Nobunaga Shimazaki
Satoru Furuya (voice)
Natsuki Hanae
Natsuki Hanae
Haruichi Kominato (voice)
Yoshimasa Hosoya
Yoshimasa Hosoya
Tetsuya Yuki (voice)
Shintaro Asanuma
Shintaro Asanuma
Yoichi Kuramochi (voice)
Yuki Ono
Yuki Ono
Shun Isashiki (voice)
Kengo Kawanishi
Kengo Kawanishi
Wataru Kariba (voice)
Daisuke Namikawa
Daisuke Namikawa
Chris Yu Takigawa (voice)
Masakazu Morita
Masakazu Morita
Kochiro Tanba (voice)

📋 All Seasons of Ace of the Diamond

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