Why did Buchholz come out in 8th inning?

CLEVELAND — Clay Buchholz had thrown a career-high 127 pitches in his last outing against the Tigers in a 1-0 Sox win on May 18th. He had thrown 110 pitches the outing before that.

Pitching coach Curt Young adheres to the 330-pitch rule over three outings. In other words, don’t go too far over that and then scale back.

Buchholz seemed very strong in the eighth inning, leading 2-1. But the 330 mark was 93 pitches. He went to 94 to retire Austin Kearns after a single by Jack Hannahan, and in came Daniel Bard.

“The last thing — and I told Curt before the game — I said the last thing I want to do is make Buck work hard in his last inning,” manager Terry Francona said. “And that’s right what we were getting to. He pitched great and it’s a shame, but we’ve got to take care of him, and I think he’s smart enough to know that. The results weren’t what we were looking for. He pitched his heart out, just, like I said, didn’t want him to work. That’s what would be taxing,”