Nolan Ryan was the Major League pitcher who retired with 5,714 strikeouts in 5,386 innings. His strikeout total remains the Major League career record, and his unusually long career made him one of baseball’s most dominant and recognizable pitchers.
Ryan played 27 major-league seasons from 1966 through 1993, appearing for the New York Mets, California Angels, Houston Astros, and Texas Rangers. He relied on an exceptionally powerful fastball and a sharp curveball, allowing him to continue overpowering hitters well into his forties. He also led the majors in strikeouts 11 times.
Ryan’s other records reinforce the scale of his career: he threw seven no-hitters, more than any other pitcher, and recorded 12 one-hitters. He did not, however, hold the career wins record; his 324 victories rank below several famous pitchers. Another common misunderstanding is that 5,386 innings was a single-season figure—it was Ryan’s total over his entire major-league career.