The Orioles went 11-8 against Boston last year and are 5-3 this year. Since July 19, 2011, the Orioles are 45-27 (.625) versus the Sox, including a mark of 21-15 (.583) at home.
The Orioles split one series 2-2 with Boston and won another one 2-1 before taking the series opener with a 1-0 win last night at Camden Yards.
Chen has worked seven innings or more in four of his last six starts and the O's are 6-5 in his outings. Opposing batters have hit just .096 (5-for-52) with a slugging percentage of .173 against Chen this year with runners in scoring position.
Porcello pitched well last year against the Orioles, going 2-0 with a 1.42 ERA in two starts. But this year with Boston he is 0-1 with a 9.82 ERA in two starts.
While he gave up just just two runs in eight innings in his last start against Minnesota, Porcello is 0-3 with a 6.98 ERA over his last three starts overall.
More notes on the O's and Boston:
* Zach Britton has not allowed a run over his last 10 games and 10 2/3 innings. He has converted 12 consecutive saves (since May 3), the second-longest stretch of his career behind only a career-high streak of 18 in a row, set July 19-Sept. 4, 2014. Last night was his fourth multi-inning save of the season.
* The Orioles recorded their third shutout victory of the season on Monday. They shut out Tampa Bay 4-0 on May 2 and Los Angeles 3-0 on May 17. It was the Orioles' 48th shutout win against the Red Sox in series history and the Birds blanked the Red Sox for the first time since Sept. 8, 2014 in Boston, and first time at Oriole Park since June 11, 2014.
* Boston pitchers have a team ERA of 2.26 over the last nine games. Their team ERA was 5.86 this year after the season's first 33 games. The Red Sox rank next to last in the American League in team ERA at 4.24 going into play tonight, ahead of only Toronto at 4.26. The Orioles rank ninth at 3.82.
In the draft: The Orioles started their draft today by selecting six consecutive college players after they drafted seven high school players among their first 11 picks in the first two days.
In Round 11, they took Radford University's closer, right-hander Ryan Meisinger, a 6-foot-4, 240-lb. junior. He was all Big South first team and shared the national saves lead with 17. Over 39 innings, he gave up 24 hits and fanned 66 with just eight walks.
In the 32nd round, the Orioles selected right-hander Cody Morris out of Resevoir High School in Howard County, Md. Morris recently underwent Tommy John surgery and has what sounds like a strong college commitment to South Carolina, and could be tough to sign. But he is a local product drafted today by the Orioles.