Rintaro Sasaki Biography: Age, Height, Net Worth, Parents, Father, Stanford, Marlins, Draft, Home Runs, Girlfriend
Rintaro Sasaki is a Japanese professional baseball player who plays first base in the Miami Marlins organization. He gained international recognition for setting Japan’s high-school career home-run record with 140 home runs before attending Stanford University and beginning his professional career in American baseball.
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| Wiki Facts & About Data | |
| Name: | Rintaro Sasaki |
| Born: | April 18, 2005 (age 21 years old) |
| Place of Birth: | Kitakami, Iwate Prefecture, Japan |
| Nationality: | Japanese |
| Ethnicity: | Japanese |
| Height: | 6 feet 1 inch |
| Religion: | Buddhism |
| Parents: | Hiroshi Sasaki and Reika Sasaki |
| Siblings: | One sister, Shu Sasaki |
| Occupation: | Professional Baseball Player |
| Net Worth: | $300,000 |
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Early Life and Education
Rintaro Sasaki was born on April 18, 2005, in Kitakami, Iwate Prefecture, Japan. He is the son of Hiroshi Sasaki, a respected high-school baseball coach, and Reika Sasaki.
His father coaches at Hanamaki Higashi High School, a program that has produced Major League Baseball stars Shohei Ohtani and Yusei Kikuchi. Growing up in a baseball-focused family, Rintaro developed his hitting skills under his father’s guidance.
He attended Hanamaki Higashi High School in Iwate, where he became one of Japan’s most celebrated young baseball players. He set a Japanese high-school record by hitting 140 home runs during his school career.
In 2024, he graduated and made the unusual decision to pursue college baseball in the United States rather than immediately entering Japan’s professional league. He enrolled at Stanford University, where he studied while continuing his development as a first baseman.
Career
Rintaro Sasaki began attracting national attention in Japan while playing for Hanamaki Higashi High School. His powerful left-handed hitting made him one of the country’s most prominent high-school baseball prospects. He finished his high-school career with a record 140 home runs and attracted significant attention ahead of Japan’s professional draft.
Rather than entering Nippon Professional Baseball immediately, Sasaki chose Stanford University in California. He joined the Cardinal program in 2024 and began competing in college baseball in 2025.
During his freshman season, he appeared in all 52 games, batting .269 with seven home runs and 41 runs batted in. He improved in 2026, starting all 54 games and finishing with a .262 batting average, 16 home runs, 47 RBIs and a .403 on-base percentage. He also earned recognition on the Atlantic Coast Conference All-Academic Team in 2025.
The Miami Marlins selected Sasaki in the eighth round of the 2026 MLB Draft, 235th overall. He signed with the organization for a reported $210,200 bonus in July 2026 and began his professional career with the Florida Complex League Marlins.
Awards and Nominations
- Japanese high-school career home-run record holder with 140 home runs
- 2025 ACC All-Academic Team
- 2025 Perfect Game Midseason Freshman All-America Second Team
- 2025 Baseball America Preseason National Freshman of the Year recognition
- 2025 D1Baseball Preseason ACC Freshman of the Year recognition
- 2026 MLB Draft eighth-round selection, 235th overall
Personal Life
Rintaro Sasaki, 21 years old, grew up in Iwate Prefecture, Japan, in a family closely connected to baseball. His father, Hiroshi Sasaki, is the head baseball coach at Hanamaki Higashi High School, where Rintaro developed his powerful hitting skills.
His mother is Reika Sasaki, and he has a sister named Shu. Sasaki has spoken about the challenges of adapting to life in the United States, including learning English and balancing academic responsibilities with demanding baseball training.
He values education alongside his sporting ambitions and chose Stanford partly because it allowed him to develop as both a student and an athlete. His long-term goal is to reach Major League Baseball.
Net Worth
Rintaro Sasaki’s net worth is $300,000 USD. His financial foundation includes his professional signing bonus from the Miami Marlins after the 2026 MLB Draft. Additional earnings may come from baseball-related opportunities, sponsorships and endorsements.
His professional career is still at an early stage, and his future financial growth will depend on his performance, advancement through the Marlins’ minor-league system and eventual opportunities at higher levels of professional baseball.
Filmography and Selected Works
- Miami Marlins
- Florida Complex League Marlins
- Stanford Cardinal Baseball
- Hanamaki Higashi High School Baseball
- Japan High School Baseball Championships
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