It was just the latest successful outings for Loe, who has given up one run all season in 18 1/3 innings.
The emergence of Loe has helped steady the bullpen, providing a reliable setup man to closer John Axford.
Considering manager Ken Macha had no idea what to expect when Loe was brought up in June from Triple-A Nashville, the reliever has been a welcome surprise.
"I had seen him pitch in Texas, he had pitched some good games against us when I was with the A's," Macha said. "But he was a starter then, so how guys transition into being relievers, you just don't know."
The key for Loe has been commanding his sinking fastball.
Standing at 6 feet 8, Loe's sinker -- called a "turbo sinker" by Cardinals manager Tony La Russa -- has been almost impossible for hitters to drive, with Loe giving up eight hits this season and zero home runs.
"The way his ball is sinking -- I brought him in Florida and I thought they were sliders, diving down breaking balls," Macha said. "But that is his fastball."
"He has been quite a find."