Last year, on June 4, Clayton Kershaw allowed six runs in 6 2/3 innings in Cincinnati. In his next start, he allowed six runs in six innings at Colorado.
His ERA on June 9 last year stood at 3.44.
Admittedly, his strikeout rate is down in 2012, which is not fun to contemplate, but contrary to popular recollection, Kershaw was hittable in the first half of last season. His Cy Young run began June 14, when he began a streak in which he allowed 24 earned runs in his final 19 starts.