With Shepherd's Ty Hart (2-0, 0.68 ERA) and Charlie Lamp (2-0, 2.00 ERA) scheduled to pitch today's doubleheader at Fairmont State, Chris Ward faced Oswego (1-1), a team the Rams beat 9-5 a week ago.
Ward's defense bailed him out of trouble the first two innings before the Lakers' Myers, who went 4-for-4 with a walk, singled to drive home the first of his five RBIs in the third.
After Ward walked the bases full, Riser lifted the freshman in favor of Joe Pease, who uncorked a wild pitch to score OSU's second run before fanning Pat LeClair to end the inning.
Shepherd (10-1), which stranded 10 baserunners, rallied in the fifth on Keith Koenig's solo home run, his second of the season, before Jason Law drew a bases-loaded walk to force in the tying run.
"The record doesn't matter once we start conference play," Riser said. "Anytime you go on the road in the conference, it's tough to win. You gotta play well and we've got our work cut out for us (today). We didn't pitch particularly well (Monday), and we hit the ball right at people. I especially didn't like the way we lost the game there at the end."
Myers tagged Pease (0-1), who allowed four hits in 41/3 innings, broke the tie in the seventh with his first two-run shot of the day after Rocky Fritz singled to put Oswego ahead for good 4-2.
Jason Ritenour pitched the final two innings, serving up Myers' second two-run homer with two out in the top of the ninth after a shoddy defense caused both runs to be unearned.
Scott Delgatti worked seven innings and picked up the win for Oswego. Rich Pell contributed three hits, while Koenig and Jeb Bauer each had a pair for Shepherd.