with 6 saves and a 0.38 ERA before being promoted to the Double-A Tennessee Smokies on May 15. He pitched in 23 games for the Smokies, in which he had a 2–2 record with 3 saves and a 1.53 ERA, and 37 strikeouts in 29.1 innings. Blevins pitched a total of 38 games in the Cubs organization and had a 3–2 record with a 1.02 ERA. Oakland Athletics Blevins was traded to the Oakland Athletics, along with catcher Rob Bowen, for catcher Jason Kendall on July 16, 2007. The Athletics, upon receiving Blevins, optioned him to Double-A Midland. He went 1–3 there with a 3.32 ERA in 17 games. He was promoted to the Sacramento River Cats, the Athletics Triple-A affiliate, on August 31, 2007. Before the River Cats season ended, he pitched in one game in which he did not give up a run and got the win in 2 scoreless innings pitched. Blevins helped the River Cats win the Pacific Coast League championship. After the win, Blevins was promoted to the Athletics major league club on September 15, 2007. Blevins pitched for four different minor league teams in 2007, and had a combined 5–5 record with a 1.63 ERA in 56 games. He also struck out 11.87 batters per nine innings and had a total of 102 strikeouts in 77 innings. On September 16, 2007, Blevins made his major league debut, coming into the game in the ninth inning against the Texas Rangers. He pitched a perfect ninth inning and struck out David Murphy. He was named a 2008 Pacific Coast League mid-season All Star. Blevins was designated for assignment on May 23, 2011. He was later re-added back to the 40-man roster, only to be designated for assignment again on July 19. He was re-added to the 40-man roster a day later. Blevins earned one save during the 2012 season, also his second save in his career, in a clutch relief appearance when A's closer Grant Balfour allowed two runs in the bottom of the ninth inning making the score 6–5 against the Los Angeles Angels. Blevins came in with the tying run at third and winning run at first, but he struck out Kendrys Morales and grounded Howard Kendrick into a double play to earn the save. Blevins signed a one-year, $1.1 million deal with the Athletics to avoid arbitration before the 2013 season. On April