Well SWR pitched 5.1 innings to give up his 1 run, which didn't score while he was on the mound, BTW. The run that was charged to him got on base on a weakly hit infield single.
It took Okert 2/3 of an inning for his 1 earned, and both his and SWR's earned runs came off a HR given up by Okert.
I don't think those pitchers pitched equally well. Do you?