Next episode: S4E18 “Showdown of the Determined” airs on TV Tokyo
A meeting with catcher Kazuya Miyuki changed the 15-year-old Eijun Sawamura's life. He said goodbye to all his friends and knocked upon the door of Seidou, a prestigious baseball school, intent on testing his own strength. There, he met many proud baseball players who were betting everything on the sport! A classic tale, yet new and fresh.
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| Season 424 | ||||
|---|---|---|---|---|
| E1 | Up Ahead | Aired | — | |
| E2 | For the Team | Aired | — | |
| E3 | The Path of the Victor | Aired | — | |
| E4 | Roar | Aired | — | |
| E5 | Something Off | Aired | — | |
| E6 | The Unveiling | Aired | — | |
| E7 | What's Built Up | Aired | — | |
| E8 | The Mentality of the Ace | Aired | — | |
| E9 | High Voltage | Aired | — | |
| E10 | My Fight | Aired | — | |
| E11 | As a Partner | Aired | — | |
| E12 | The Next Stage | Aired | — | |
| E13 | An Endless Road | Aired | — | |
| E14 | The Night Before the Finals | Aired | — | |
| E15 | Full Throttle | Aired | — | |
| E16 | Transmission | Aired | — | |
| E17 | The Taste of Victory | Previous | — | |
| E18 | Showdown of the Determined | Next Episode | — | |
| E19 | Episode 19 | Upcoming | — | |
| E20 | Episode 20 | Upcoming | — | |
| E21 | Episode 21 | Upcoming | — | |
| E22 | Episode 22 | Upcoming | — | |
| E23 | Episode 23 | Upcoming | — | |
| E24 | Episode 24 | Upcoming | — | |
| Season 352 | ||||
| E1 | Beyond the Dream | Aired | — | |
| E2 | Wanna Take the Mound | Aired | — | |
| E3 | Blessed by the Baseball Gods | Aired | — | |
| E4 | The Day It Began | Aired | — | |
| E5 | Joining | Aired | — | |
| E6 | Go Straight | Aired | — | |
| E7 | King | Aired | — | |
| E8 | Camphor | Aired | — | |
| E9 | Battle, Battle | Aired | — | |
| E10 | Debut | Aired | — | |
| E11 | Where You Look | Aired | — | |
| E12 | Selfish | Aired | — | |
| E13 | Batting First | Aired | — | |
| E14 | Presence | Aired | — | |
| E15 | My Role | Aired | — | |
| E16 | Only After You've Won | Aired | — | |
| E17 | Three Months | Aired | — | |
| E18 | Something to Find Out | Aired | — | |
| E19 | Competitive Streak | Aired | — | |
| E20 | Self-Assertive | Aired | — | |
| E21 | Out of time | Aired | — | |
| E22 | Chosen | Aired | — | |
| E23 | One Pitch, One Second | Aired | — | |
| E24 | Incomplete | Aired | — | |
| E25 | Unleashed | Aired | — | |
| E26 | Beneath the Same Banner | Aired | — | |
| E27 | The Note | Aired | — | |
| E28 | I'm Not Stopping! | Aired | — | |
| E29 | After Spring Comes | Aired | — | |
| E30 | The Bloom of Youth | Aired | — | |
| E31 | Kind of Like a Promise | Aired | — | |
| E32 | Hunger | Aired | — | |
| E33 | Heat Transfer | Aired | — | |
| E34 | Competition | Aired | — | |
| E35 | Because He's Awesome | Aired | — | |
| E36 | As a Catcher | Aired | — | |
| E37 | Invincible Mentality | Aired | — | |
| E38 | Fragile | Aired | — | |
| E39 | I'm Counting on You | Aired | — | |
| E40 | Expression | Aired | — | |
| E41 | Common Destiny | Aired | — | |
| E42 | 20 People | Aired | — | |
| E43 | Summer Training Camp | Aired | — | |
| E44 | Setting Sail | Aired | — | |
| E45 | Go exceed | Aired | — | |
| E46 | Encouragement | Aired | — | |
| E47 | Under the Feet | Aired | — | |
| E48 | Get Back | Aired | — | |
| E49 | Seido Goes All Out | Aired | — | |
| E50 | FIRE AGE | Aired | — | |
| E51 | That's the Reason Why | Aired | — | |
| E52 | Ace of Diamond | Aired | — | |
| Season 251 | ||||
| E1 | Howling in the Summer | Aired | — | |
| E2 | The Summer Heat Haze | Aired | — | |
| E3 | The Kings of Summer | Aired | — | |
| E4 | The Fall Tournament Begin! | Aired | — | |
| E5 | The Cold Rain | Aired | — | |
| E6 | Out of Order | Aired | — | |
| E7 | Where I Am | Aired | — | |
| E8 | Scenario | Aired | — | |
| E9 | My Path | Aired | — | |
| E10 | Did You Just Pitch... | Aired | — | |
| E11 | The Underdog Story | Aired | — | |
| E12 | Self-Destruction | Aired | — | |
| E13 | Fissure | Aired | — | |
| E14 | On My Shoulders | Aired | — | |
| E15 | Persistent and Diligent | Aired | — | |
| E16 | Chain Reaction | Aired | — | |
| E17 | Shut Him Down!! | Aired | — | |
| E18 | This Guy's Pretty Good | Aired | — | |
| E19 | An Uncompromising Challenge | Aired | — | |
| E20 | With Heads Held High | Aired | — | |
| E21 | Whispers of the Devil? | Aired | — | |
| E22 | Winging It | Aired | — | |
| E23 | School Academic Level | Aired | — | |
| E24 | Individual Minds | Aired | — | |
| E25 | Zeal | Aired | — | |
| E26 | The Conceited Underclassman | Aired | — | |
| E27 | Step by Step | Aired | — | |
| E28 | The Resilient Second-String | Aired | — | |
| E29 | Demon Child | Aired | — | |
| E30 | The Kings' Roar | Aired | — | |
| E31 | The Courage He Gave Me | Aired | — | |
| E32 | The Resolve for Responsibility | Aired | — | |
| E33 | The Ace's Instinct | Aired | — | |
| E34 | Innocent | Aired | — | |
| E35 | The World Beyond | Aired | — | |
| E36 | Rematch | Aired | — | |
| E37 | Priorities | Aired | — | |
| E38 | One Pitch | Aired | — | |
| E39 | Meeting Expectations | Aired | — | |
| E40 | Play Ball | Aired | — | |
| E41 | The Lead-Off Man | Aired | — | |
| E42 | Fastball, Featuring Todoroki | Aired | — | |
| E43 | To This Side | Aired | — | |
| E44 | The Best Fastball | Aired | — | |
| E45 | The Field | Aired | — | |
| E46 | The Decision | Aired | — | |
| E47 | Partnership | Aired | — | |
| E48 | Party Boys | Aired | — | |
| E49 | Just You Wait! | Aired | — | |
| E50 | Last Inning | Aired | — | |
| E51 | Seek Diamonds | Aired | — | |
| Season 175 | ||||
| E1 | The One Pitch | Aired | 6 | |
| E2 | Partner | Aired | 6.3 | |
| E3 | Not Qualified to Be a Pitcher? | Aired | 6.3 | |
| E4 | Are You Like Me? | Aired | 6.3 | |
| E5 | A Clash | Aired | 6.3 | |
| E6 | Head to Head! | Aired | 7 | |
| E7 | The Two Batteries | Aired | 6 | |
| E8 | The Truth About Chris | Aired | 6.7 | |
| E9 | With Chagrin in His Heart | Aired | 6 | |
| E10 | Hone Your Moving Fastball | Aired | 6 | |
| E11 | Chris to the Field | Aired | 7.3 | |
| E12 | Target | Aired | 7 | |
| E13 | You're in the First-String | Aired | 7.3 | |
| E14 | Training Camp Begins! | Aired | 6.7 | |
| E15 | Lead with Your Plays! | Aired | 6.3 | |
| E16 | Challenge | Aired | 6.7 | |
| E17 | Games Are Fun | Aired | 7 | |
| E18 | I Hate It, But... | Aired | 7 | |
| E19 | Fate | Aired | 6.3 | |
| E20 | Emergency | Aired | 6.7 | |
| E21 | To the Dream Stage | Aired | 6.7 | |
| E22 | Calling for Attention | Aired | 6.7 | |
| E23 | Official Game Debut | Aired | 6.7 | |
| E24 | Precision Machine | Aired | 6.3 | |
| E25 | Anti-Furuya Strategy | Aired | 6.7 | |
| E26 | Miracle Akikawa | Aired | 6.7 | |
| E27 | I'm Not Running | Aired | 6.7 | |
| E28 | Path, Eijun Sawamura to the Scorching Mound | Aired | — | |
| E29 | Neck and Neck | Aired | 6.7 | |
| E30 | Winner and Loser | Aired | 7 | |
| E31 | Dark Horse | Aired | 7 | |
| E32 | Summers | Aired | 6.7 | |
| E33 | Money Tree | Aired | 6.7 | |
| E34 | Reliable Teammates | Aired | 6.7 | |
| E35 | Potential | Aired | 6.7 | |
| E36 | The Ace Takes the Mound | Aired | 6.7 | |
| E37 | Burst | Aired | 6.7 | |
| E38 | Roles | Aired | 6.7 | |
| E39 | Expectations of an Ace | Aired | 6.3 | |
| E40 | The Winning Shot | Aired | 6.7 | |
| E41 | It's the Semifinal | Aired | 6.7 | |
| E42 | The Giant Looks Down | Aired | 6.7 | |
| E43 | Revenge | Aired | 6.3 | |
| E44 | Best Pitch | Aired | 6.7 | |
| E45 | Fantasy | Aired | — | |
| E46 | Pitching of Despair | Aired | — | |
| E47 | That Summer | Aired | — | |
| E48 | At the Dorm... | Aired | — | |
| E49 | A Nostalgic Face | Aired | — | |
| E50 | Footsteps to Tomorrow | Aired | — | |
| E51 | The Battle Begins! | Aired | — | |
| E52 | I Don't Want to Lose | Aired | — | |
| E53 | Change Gears | Aired | — | |
| E54 | Entrusted Faith and the Courage to Perform | Aired | — | |
| E55 | Strong Men | Aired | — | |
| E56 | Decision | Aired | — | |
| E57 | Reliable Underclassmen | Aired | — | |
| E58 | The Three-Hole | Aired | — | |
| E59 | Fearless | Aired | — | |
| E60 | Lonely Sun | Aired | — | |
| E61 | Determined | Aired | — | |
| E62 | Victory or Defeat | Aired | — | |
| E63 | Lingering Feelings | Aired | — | |
| E64 | Restart | Aired | — | |
| E65 | In the Sun | Aired | — | |
| E66 | Outsider | Aired | — | |
| E67 | The Kick | Aired | — | |
| E68 | The Ace Title | Aired | — | |
| E69 | Can`t Lose! | Aired | — | |
| E70 | Next Stage | Aired | — | |
| E71 | September Sky | Aired | — | |
| E72 | The Final Lesson | Aired | — | |
| E73 | Inheritance | Aired | — | |
| E74 | Guiding Light | Aired | — | |
| E75 | In Pursuit | Aired | — | |
A meeting with catcher Kazuya Miyuki changed the 15-year-old Eijun Sawamura's life. He said goodbye to all his friends and knocked upon the door of Seidou, a prestigious baseball school, intent on testing his own strength. There, he met many proud baseball players who were betting everything on the sport! A classic tale, yet new and fresh.
S4E18 "Showdown of the Determined" airs Sun, Nov 8, 2026 on TV Tokyo.
24 episodes of Season 4 have been announced so far, 17 of which have aired. Episodes release on varying dates.
The last announced episode of Season 4 (S4E24) airs Sun, Dec 20, 2026. More episodes may still be added.
Tap "Subscribe in Calendar" on this page and pick Google Calendar, Apple Calendar or Outlook. Every Ace of Diamond episode is added with its air date, and the calendar updates itself when dates change.