Over his last 12 games, Aubrey Huff is batting .313-1-11. Over his last 13 games, Adam Jones is hitting .296-5-12 while Nick Markakis is hitting .326-5-21 since the All-Star break. The Oakland A's have won back-to-back series, winning five of their past seven and seven of their last 12 games. The A's are 12-13 in the second half. Oakland used four homers and four stolen bases to beat Kansas City, 6-3 Sunday and is 2-1 on a six-game road trip. Over the last 31 games, Oakland starting pitchers are 9-13, 6.16. The A's have used a rookie starting pitcher in 78 of 111 games on the year. The O's were swept three straight June 5-7 at Oakland by scores of 9-1, 9-4 and 3-0. Two O's starters, Jeremy Guthrie and Rich Hill were knocked out in the first inning in that series as O's starters allowed 18ER to Oakland in a combined 4 2/3 frames. The O's bullpen worked often and threw well vs. the A's with an ERA of 1.40 in the series (3ER over 19 1/3IP). The O's were 0-5 vs. Oakland last year and have lost eight in a row vs. the A's. They are 10-29 vs. Oakland since 2004. O's hitters, 2009 vs. Oakland: Andino: 2-10 Huff: 1-8 Jones: 4-11 Markakis: 2-12, 2B Mora: 2-9 Pie: 0-2 Reimold: 2-7, HR, 3 RBI Roberts: 2-10 Scott: 3-11, HR, RBI Wieters: 1-7 Wigginton: 0-5 In that earlier three-game series, the O's scored just five runs vs. A's pitching with a team average of .200 (20 for 100). The O's had just two doubles and two homers in that series. Baltimore's staff had an ERA of 7.88 in the series while Oakland's ERA was 1.67.