Japanese baseball has its own pantheon of records — some recognized worldwide, others cherished only in Japan. Here are the marks every NPB fan knows.
Oh: the home-run king
Sadaharu Oh is the greatest slugger in professional baseball history — any league. Over 22 seasons with the Yomiuri Giants, the first baseman hit 868 home runs — a world record that still stands, more than 100 ahead of MLB's Barry Bonds. He also holds Japanese records for RBIs (2,170), slugging percentage (.634) and OPS (1.080), hit .301 for his career, and won 11 Japan Series titles — including nine straight from 1965 to 1973. His distinctive "flamingo leg kick" made him one of baseball's most recognizable figures.
Kinugasa: the Iron Man
While Oh hit home runs, Sachio Kinugasa simply showed up — for 2,215 consecutive games. The Hiroshima Carp third baseman, nicknamed "Tetsujin" (Iron Man) after the robot manga Tetsujin 28-go, broke Lou Gehrig's record of 2,130 on June 13, 1987, and retired that October with the streak still intact. He finished with 504 home runs, 2,543 hits and a .270 average, and his number 3 is a permanently retired number in Hiroshima.
The other greats
Katsuya Nomura hit 657 home runs — second all-time in NPB. Hiromitsu Ochiai won three Triple Crowns. Shigeo Nagashima — "Mr. Giants" — hit 444 home runs. And Takeya Nakamura of the Seibu Lions is among the active greats, with more than 400 career home runs and counting.
Single-season marks
Oh's 55 home runs in 1964 stood as the single-season record for nearly 50 years, until Wladimir Balentien hit 60 for the Tokyo Yakult Swallows in 2013. Munetaka Murakami's 56 in 2022 set the new Japanese-born record. And in pitching, NPB's shorter 143-game seasons mean win totals look different from MLB — but a 20-win season or a sub-1.50 ERA still means dominance.
868 home runs. 2,215 straight games. Two records that may never fall.
Why records matter here
Because NPB's 12 teams play each other so often — 143 games a season against a small field — records carry a different weight. They're the measuring stick for every young player who dreams of crossing the Pacific. Start with our NPB primer and NPB-to-MLB history.