EASLEY, S. C. -- The Mid-American Christian Evangels won the National Christian College Athletic Association softball national championship in walkoff fashion Thursday. Playing at catcher for the Evangels was Camenda Osborn, a former Po-Hi softball standout. Mid-America scored a run in the bottom of the eighth inning Thursday to defeat Concordia-Ann Arbor (Mich.) 3-2. Osborn played a big role…