LOOKOUT MOUTAIN, Ga.—A combined 31 runs off 39 hits told the story of a 16-15 finish that fittingly ended on a walk-off win for Covenant over Oglethorpe Tuesday night in a nonconference game. The game was a repeat of Oglethorpe’s own 4-3 walk-off win posted against Covenant just one week ago. The scoring by inning looked like the seismograph in the movie “Volcano.” Covenant took a commanding lead with five runs in the bottom of the second only to see that lead vanish when Oglethorpe tied it with five runs in the third and go ahead 8-5 with three runs…