Free MLB Betting Odds & Picks on the Baltimore Orioles vs. Seattle Mariners Wednesday July 4th Holiday game 2 matchup. The Mariners are +120 home underdogs. The over/under is set at 7. Q likes the home team in this one 5-3. The pitching matchup features RH Chris Tillman (NR) vs. RH Hector Noesi (2-10, 5.69). Seattle is hoping to continue its winning ways. I kid.