Roki Sasaki: The Monster Still Becoming an Ace - Asian Baseballers

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AsianBaseballers Update: Joshua Kuroda-Grauer exits game with a testicular contusion after hitting his first MLB home run. He is listed as day-to-day I Results for 7/31 /2026 games: • Jung Hoo Lee — 0-3 • Tsung‑Che Cheng — DNP • Conner Wong — DNP • Christian Yelich — 1 - 5, 1 K • Kyle Higashioka — DNP • Joshua Kuroda‑Grauer — IL • Roki Sasaki — No Game • Yoshinobu Yamamoto — No Game • Tomoyuki Sugano — 6.2 INN, 5 H, 1 R, 1 ER, 1 HR, 2 K • Corbin Carroll — 0–3 • Shohei Ohtani — 2–4, 2 RBI 1 HR, 2 R • Seiya Suzuki — 0–0, DNP • Steven Kwan — 2–2 • Kazuma Okamoto — 1–4, 1 RBI • Masataka Yoshida — 2–5, 1 RBI, 1 R • Sung Mun Song — 0–0 DNP • Tommy Edman — DNP • Hao‑Yu Lee — 0–2 • Bo Bichette — 2–4 • Anthony Volpe — 0–3, 1 K • Lars Nootbaar — 0–4, 1 K • Munetaka Murakami— 2–4, 2 RBI, 2 R 1 HR

Roki Sasaki: The Monster Still Becoming an Ace



With the way Roki Sasaki’s career has already moved from Japan to Los Angeles, it’s hard to look at his story and not see both the hype and the patience that come with greatness. There was always going to be pressure attached to his name. When a pitcher is nicknamed “The Monster of the Reiwa Era,” throws harder than almost anyone in the world, throws a perfect game at age 20, and then joins the Los Angeles Dodgers, people aren’t going to treat him like just another young arm. The expectations were never ordinary. They were massive. But that’s what makes Sasaki so interesting. His career isn’t only about what he’s already done. It’s about what his talent still says he can become.


Before Sasaki ever reached Major League Baseball, he’d already created one of the most unforgettable pitching moments in Japanese baseball history. With the Chiba Lotte Marines, he wasn’t just a prospect with a big fastball. He was a pitcher who could make an entire league look overmatched when everything was working. On April 10, 2022, he threw a perfect game against the Orix Buffaloes, striking out 19 batters and setting a record with 13 straight strikeouts. There’s really no way to make that sound normal. It wasn’t just a good start. It was the kind of performance that turns a young pitcher into a baseball legend almost overnight.


Then came the jump to MLB, and with that came the obvious question: would the stuff translate? It’s one thing to overpower hitters in Japan. It’s another thing to do it in Los Angeles, for a team that expects championships every season and already has stars everywhere on the roster. Sasaki didn’t arrive as a finished product, and that matters. His first seasons with the Dodgers have included flashes of dominance, stretches of adjustment, and moments where the command hasn’t always matched the talent. But even while he’s worked through that learning curve, the reason for the excitement has never disappeared. The fastball is still electric. The splitter is still dangerous. The ceiling is still enormous.


NPB Regular Season Stats

From 2021 to 2024, Roki Sasaki pitched for the Chiba Lotte Marines in Nippon Professional Baseball. Across 64 regular-season games, he posted a 29-15 record, threw 394.2 innings, recorded a 2.10 ERA, and struck out 505 batters.


Those numbers matter because they show why Sasaki didn’t come to America as a mystery. A 2.10 ERA across four NPB seasons, 505 strikeouts, and a perfect game on his résumé is the kind of background that makes a player impossible to ignore. He wasn’t just being hyped because he threw hard. He was being hyped because he’d already matched that velocity with results. When a pitcher can combine triple-digit velocity with a wipeout splitter and the ability to completely take over a game, people are going to start imagining what that looks like against MLB hitters.


MLB Regular Season Stats

From 2025 to 2026, Sasaki pitched for the Los Angeles Dodgers in Major League Baseball. During that regular-season stretch, he appeared in 29 games, made 27 starts, went 6-6, finished with a 4.59 ERA, and struck out 129 batters.


At first glance, the MLB numbers don’t tell the same story as the NPB numbers, and that’s exactly why Sasaki’s career is so fascinating right now. He hasn’t simply walked into the league and dominated every start. But that doesn’t mean the hype was wrong. It means the adjustment is real. The Dodgers aren’t just trying to survive with Sasaki. They’re trying to build him into the kind of pitcher his talent suggests he can become. There are plenty of young pitchers who need time to sharpen command, learn lineups, and handle the rhythm of a full MLB season. The difference is that most of them don’t have Sasaki’s raw stuff.


Big-Game Reputation

Sasaki’s reputation is also bigger than regular-season numbers. He helped Japan win the 2023 World Baseball Classic, and his perfect game remains one of the clearest examples of how completely he can control a game. That’s the part that makes him different. Some pitchers have good statistics. Some pitchers have great stuff. Sasaki has already had moments where both came together in a way that felt historic. When that version of him shows up, it isn’t hard to understand why so many people believe he can become one of the most important pitchers of his generation.


With this in mind, there’s really no way to talk about Roki Sasaki without talking about both the present and the future. His NPB career showed a pitcher who could overwhelm Japan. His move to the Dodgers showed a player willing to take on the biggest stage in the sport. His MLB career is still being written, and it’s already shown that the path may not be perfectly smooth. But that doesn’t make the story smaller. If anything, it makes it more interesting. Sasaki isn’t just another talented pitcher trying to figure things out. He’s a rare arm with a rare résumé, and if the command, health, and experience all come together, the rest of baseball should be worried. Roki Sasaki isn’t fully finished yet, but the outline of an ace is already there.



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