Qualifiers: players will be classified under one position even if they played at more than one. They must also have at least two seasons as the team’s primary starter at the position.
Arguably the greatest hitter in baseball history, Hall of Fame legend Ted Williams played his entire 19-year career with the Boston Red Sox from 1939 to 1960. Teddy Ballgame owns the Red Sox’ all-time records for career batting average (.344), on-base percentage (.482), slugging percentage (.634), home runs (521), walks (2,021), OPS+ (190), and WAR (119.8). He won six batting titles and famously hit .406 in 1941, the last .400 season in the majors. He took home two American League MVP awards, won the Triple Crown in 1947, and owns the MLB record for OBP.
Hall of Famer Carl Yastrzemski was the second longest-tenured player and one of the greatest all-around players in baseball history. Yaz has more hits than any other player in Red Sox history with 3,419 over 3,308 games. He maintained a lifetime .285 average, .379 OBP, and 130 OPS+ with 452 home runs, 168 stolen bases, and 90.1 WAR. He was an 18-time All-Star and seven-time Gold Glove left fielder. Until Miguel Cabrera accomplished the feat in 2012, Yaz was the last player to win the Triple Crown, doing so in 1967 with a .326 average, 44 home runs, and 121 RBI, while also winning the AL MVP.
One of the most recent Red Sox stars inducted into the Hall of Fame, Jim Rice played his entire 16-year career in Boston from 1974 to 1989. Rice was one of Boston’s great power-hitters; he slugged .502 for his career, ranks third in team history with 382 home runs, and he led the AL in homers three times. His greatest season came in 1978 when he won the AL MVP and led the league in several categories including hits (213), home runs (46), triples (15), RBI (139), and OPS (.970).
Eccentric ten-time All-Star Manny Ramirez did his best work in a Red Sox uniform from 2001 to 2008. Ramirez was a perennial MVP candidate during his tenure in Boston, posting a .312 average, .411 OBP, .588 slugging percentage, and 155 OPS+ over 1,083 games. He won a batting title in 2002, led the league in home runs in 2004, and won the World Series MVP award in Boston’s historic 2004 championship. In Boston, he cracked 274 of his 555 career home runs. He ranks fifth in OBP, third in slugging, and sixth in home runs in Red Sox history.
Two-time All-Star left fielder Mike Greenwell spent his entire career as a Red Sox from 1985 to 1996. Greenwell batted .303 for his career; he peaked at .325 in 1988, and added a 2.29 walk-to-strikeout ratio, 22 home runs, 39 doubles, and 119 RBI to finish second in the MVP voting. He walked far more often than he struck out throughout his career, and was consistently one of the toughest hitters to punch out; he struck out only once every 12.7 at-bats while posting an overall .368 OBP for his career.
Honorable mention: Duffy Lewis.
Boston Red Sox Team History & Encyclopedia, Baseball-Reference.com
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