Roki Sasaki

Roki Sasaki
Sasaki in March 2025
Los Angeles Dodgers – No. 11
Pitcher
Born: (2001-11-03) November 3, 2001
Rikuzentakata, Iwate, Japan
Bats: Right
Throws: Right
Professional debut
NPB: May 16, 2021, for the Chiba Lotte Marines
MLB: March 19, 2025, for the Los Angeles Dodgers
NPB statistics
(through 2024 season)
Win–loss record29–15
Earned run average2.10
Strikeouts505
MLB statistics
(through May 10, 2025)
Win–loss record1–1
Earned run average4.72
Strikeouts24
Stats at Baseball Reference 
Teams
Career highlights and awards
NPB
NPB/World records
  • 19 Strikeouts in a single game (NPB record)
  • 13 Consecutive Strikeouts in a single game (World record)
Medals
Men's baseball
Representing  Japan
World Baseball Classic
2023 MiamiTeam

Roki Sasaki (Japanese: 佐々木 朗希, Hepburn: Sasaki Rōki, born November 3, 2001), nicknamed "the Monster of the Reiwa Era" (令和の怪物, Reiwa no Kaibutsu), is a Japanese professional baseball pitcher for the Los Angeles Dodgers of Major League Baseball (MLB). He previously played in the Nippon Professional Baseball (NPB) for the Chiba Lotte Marines. He made his NPB debut in 2021 for the Marines and signed with the Dodgers in 2025.

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 in the first overall selection of the 2019 NPB draft. Taking care to avoid subjecting their rookie to premature physical stresses, the Marines held back until the 2021 season before allowing him to make his NPB debut. He threw a perfect game on April 10, 2022, in which he tied the NPB record for strikeouts in one game and set a new record for consecutive strikeouts.