halfway through the season, and being used in a lefty/righty platoon with Ted Kluszewski, Stuart's sixteen home runs was third best on the team. He also led the league in errors committed by a first baseman (16) for the first of seven consecutive years. He was again in a platoon with Kluszewski in , and was batting .294 with nineteen home runs and sixty RBIs when the Pirates dealt Kluszewski to the Chicago White Sox on August 25. As the Pirates' full time first baseman, Stuart improved to .307 with eight home runs and nineteen RBIs. His 27 home runs and 78 RBIs led the team, while his .297 batting average tied for the team lead with catcher Smoky Burgess. His .976 fielding percentage was the lowest for a National League first baseman since Fred Luderus' .975 in . Fueled by an MVP season from shortstop Dick Groat, and the emergence of young star Roberto Clemente, the 1960 Pirates sailed to the NL pennant by seven games over the Milwaukee Braves. In their 1960 World Series victory over the New York Yankees, Stuart was held to three singles in twenty at bats with no RBIs or runs scored. Stuart was in the on deck circle as a pinch hitter when Bill Mazeroski hit the ninth-inning home run off Ralph Terry that won the World Series. His poor performance in the World Series preceded what would be his finest season in . There were two All-Star games in 1961; Stuart was part of both NL squads. In the July 11 game at Candlestick Park, Stuart doubled in his only at bat. in the July 31 contest at Fenway Park, Stuart grounded out in his only at bat. His 35 home runs and 117 RBIs far and away led the Pirates, while he batted over .300 for the only time in his career (.301). He also led the NL with 121 strikeouts. Following a slow start to his season, Stuart found himself losing playing time to rookie prospect Donn Clendenon. After the season, Stuart and pitcher Jack Lamabe were traded to the Boston Red Sox for Jim Pagliaroni and Don Schwall. Boston Red Sox Stuart's physical resemblance to Red Sox legend Ted Williams immediately endeared him to fans. Endearing him even more to Bosox fans was the fact that through the first 26 games of the 1963 season, Stuart had five home