The Colorado Rockies (43-114) and the Seattle Mariners (88-69) play the middle contest of a 3-game interleague series Wednesday at T-Mobile Park in Seattle, Washington. First pitch is scheduled for 9:40 p.m. ET. Let's analyze BetMGM Sportsbook's MLB odds around the Rockies vs. Mariners odds and make our expert MLB picks and predictions for the best bets.

Season series: Mariners lead 1-0

The Mariners (-295) and their side bettors sweated out a 4-3 victory in Tuesday's series opener, but eventually Seattle won and clinched a postseason berth. 1B Josh Naylor , a key addition at the non-waiver trade deadline, had a 2-out, bases-clearing double in the eighth inning to propel the M's to a victory.

Seattle has 15 wins in the past 16 outings, and it can win the AL West title wit

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