(Oakland, CA)  --  Guillermo Heredia doubled home Jean Segura with the go-ahead run in the 10th inning to give the Mariners a 3-2 triumph over the Athletics in Oakland.  Mike Zunino belted a two-run homer in the seventh to tie the score.  Nick Vincent picked up the victory in relief as Seattle extended its winning streak to four games.  The M's have won 12 of their last 16 games against the A's.