Numbers to ponder as play resumes

BOSTON -- A few pertinent numbers regarding the Red Sox as they resume play after the All-Star Game:

• At 43-52 (.453), the Sox have their worst winning percentage at the break since the '97 team went 38-48 (.442).

• The Sox are 9 ½ games behind first-place Baltimore in the AL East. They were 9 ½ games out at the break in 2012, when they wound up losing 93 games.

• The Sox have had 37 one-run games, most in the AL and two behind the Pirates, whose 39 one-run games lead the majors. Boston's 20 losses in one-run games match the Mets for most in the majors. The Red Sox are on pace for 63 one-run games, which would break the club record of 59 (32-27) in 1961. They're already within five of their 2013 total of 42 one-run games.

Jon Lester's 2.65 ERA at the break is the lowest qualifying ERA by a Sox left-hander at the break since Bruce Hurst had a 2.65 ERA at the break in 1984. Only two lefties have had a better ERA before the break: Bill Lee in 1973 and Oscar Judd in 1943. Both were at 2.63. Lester's ERA compares to a 4.06 average ERA for AL starters this season. Hurst was actually better against the league average (4.16), while in 1973, the year Lee was at 2.63, the league average was 3.88.

• This is the first Sox team to have three rookies making at least 60 starts since the 1966 Red Sox, when rookies George Scott (159), Joe Foy (150) and Mike Ryan (106) saw considerable action. Xander Bogaerts has 86 starts, Jackie Bradley 82, and Brock Holt 61.

• The Sox have 68 home runs, tied with the injury-ravaged Rangers for fewest in the league. They're on a pace to hit 116 for the season, which is the fewest since the '93 Sox hit 114. The '92 Sox hit just 84, the fewest of any Sox team since the end of World War II. Tom Brunansky led the '92 team with 15 home runs.

• The Portland Sea Dogs began play Friday with 63 wins, most by any team playing in the majors or minors. Their .649 percentage is the best of any team playing at Double-A and above.

• The Sox slugging percentage of .371 is the team's third-lowest since 1932. Only the '92 team (.347) and the '68 team (.352) had lower slugging percentages.

Sources: Jon Shestakofsky, Boston Red Sox; Baseball-reference.com