Currently, there are 15 starting pitchers that qualify, sporting an ERA under 3. One of them is Jonathon Niese. Another is Jason Hammel. The fourth guy on the list, is Henderson Alvarez. Clayton Kershaw is not amongst that list, only because he missed time early on. But he makes my list, because he's partially superhuman right now. You know who else makes my list?
Alfredo Simon. The strikeouts won't wow you. But Cincinnati remains afloat and survived Mat Latos being out because of his work.