Ryan Vogelsong, San Francisco Giants (9-1, 2.19 ERA)
He’s given up two runs or less in five of his last six starts, including allowing one run over six innings against Arizona last Wednesday. Vogelsong has gone 12 starts without losing, the longest streak by a Giants pitcher in 98 years.
Tim Stauffer, San Diego Padres (7-8, 2.96)
The 29-year-old right-hander has allowed two runs or less in eight of his past 10 starts. He blanked the Dodgers over 6 1/3 innings in his last outing. If Stauffer played on a more potent team, he’d have 12 to 15 wins now.
Derek Lowe, Atlanta Braves (6-10, 4.86)
The 38-year-old sinkerballer has seen his ERA climb steadily over the last six weeks from 4.16 to 4.88. His most recent outing was the worst: he gave up seven earned runs, including two homers, in four innings against the Nationals. Lowe has dropped four of his last five decisions.
Chien-Ming Wang, Washington Nationals (0-2, 6.00)
In Wang’s two starts since coming off the long-term DL, batters are hitting .385 against him. He has struck out two and walked two while allowing 15 hits over nine innings. And he hurt himself with a throwing error in his last outing, a 6-4 loss to Atlanta.