Free MLB Betting Odds & Picks on the Texas Rangers vs. Seattle Mariners Monday night game 1 matchup. The Mariners are -110 favorites. The over/under is set at 7. Q likes the home team in this one 4-2. Only once in his last 6 starts has Kevin Millwood given up more than 1 ER. If you are me though, you get the feeling that it could all fall apart at any moment.