Red Sox vs. Mariners MLB Prediction

Red Sox vs. Mariners, 9/15/21 MLB Betting Predictions & DFS Notes

The Red Sox and Mariners will wrap up their series in Seattle on Wednesday afternoon when Tanner Houck opposes Marco Gonzales at 4:10 p.m. ET. What’s the best bet on the board when it comes to this matchup?

Game Snapshot

967 Boston Red Sox (-135) at 968 Seattle Mariners (+110); o/u 8.5

4:10 p.m. ET, Wednesday, September 15, 2021

T-Mobile Park, Seattle, WA

Boston Red Sox DFS SPIN

Tanner Houck surrendered four runs (three earned) on four hits over 3 2/3 innings in Friday's loss to the White Sox. Houck struck out one and walked three in the lifeless outing. The biggest blow against the 25-year-old right-hander came when Jose Abreu cracked him for a three-run home run in the third inning. In 13 appearances (11 starts) with the Sox this season, Houck has pitched to a 3.54 ERA, 1.10 WHIP and 63/15 K/BB ratio. A road start against the Mariners shows next on Houck's schedule.

Seattle Mariners DFS Spin

Marco Gonzales allowed three runs on four hits and one walk with three strikeouts over six innings in a 5-4 win over the Diamondbacks on Friday. Gonzales bounced back after struggling against Arizona in his last start. He pitched a quality start on Friday, giving up three runs over six innings. Henry Ramos drove in two for the Diamondbacks with a two-run homer in the second inning. After walking Ketel Marte in the third, Marte made it to third base on a throwing error before scoring on a sacrifice fly. Gonzales tossed three more scoreless innings before his day was done at 101 pitches -- 64 for strikes. The 29-year-old left-hander will take a 4.03 ERA, 1.23 WHIP, and 88 strikeouts over 118 1/3 innings into his next start against the Red Sox in Seattle next week.

Red Sox vs. Mariners Betting Prediction

The over is 7-0 in the last seven meetings between these two teams in Seattle and is 14-3 in the last 17 meetings between these two teams. The over is also 4-1-1 in the Red Sox’ last six games versus American League West opponents and is 5-1 in the last six meetings as a favorite. On the other side, the over is 6-0 in the Mariners’ last six games versus a right-handed starter, is 5-0 in their last five home games and is 11-1 in their last 12 games overall.

MLB BETTING PREDICTION: RED SOX/MARINERS OVER 8.5

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