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Roki Sasaki
MLB
About Roki Sasaki
Roki Sasaki (Japanese: 佐々木 朗希, Hepburn: Sasaki Rōki; born November 3, 2001) is a Japanese professional baseball pitcher for the Los Angeles Dodgers of Major League Baseball (MLB). Nicknamed "The Monster of the Reiwa Era" (令和の怪物, Reiwa no Kaibutsu), he had previously played in Nippon Professional Baseball (NPB) for the Chiba Lotte Marines. He made his NPB debut in 2021 for the Marines. Sasaki set a new Japanese high school baseball record with a fastball recorded at 101 miles per hour (163 km/h). The Marines chose Sasaki with the first overall pick of the 2019 NPB draft, although he would not make his NPB debut until 2021.
Bio summary from Wikipedia.
Player Stats
| W | 5 | L | 5 | ERA | 4.49 | G | 26 |
|---|---|---|---|---|---|---|---|
| GS | 23 | SV | 0 | IP | 122.1 | H | 113 |
| R | 63 | ER | 61 | BB | 48 | SO | 123 |
| WHIP | 1.316 | H/9 | 8.3 | HR/9 | 1.6 | BB/9 | 3.5 |
| K/9 | 9.0 | FIP | 4.73 | WAR | 0.9 |
2026 pitching — Baseball-Reference
Career — Lahman, through 2025
Pitching
| Year | Team | W | L | ERA | G | GS | CG | SHO | SV | IP | H | HR | BB | SO |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | LAN | 1 | 1 | 4.46 | 10 | 8 | 0 | 0 | 0 | 36.1 | 30 | 6 | 22 | 28 |
Season lines from the Lahman Baseball Database (Version 2025, via SABR), joined through the Chadwick Register ID crosswalk. The databank runs through the 2025 season — the current season is the 2026 line below, from the MLB Stats API.
2026 Season — MLB Stats API
Pitching
| W | L | ERA | G | GS | CG | SHO | SV | IP | H | R | ER | HR | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 5 | 4.49 | 26 | 23 | 0 | 0 | 0 | 122.1 | 113 | 63 | 61 | 22 | 48 | 123 | 1.32 |
2026 regular-season line from the MLB Stats API (statsapi.mlb.com), pulled when this page was built. Multi-team stints are combined; rate stats are recomputed from the combined totals.
Watch Roki Sasaki Highlights
“Roki Sasaki pitches a scoreless inning for the Dodgers | NLCS Game 2 MLB Highlights 佐々木朗希ハイライト” · Open on YouTube · More Roki Sasaki videos