Boston Red Sox vs. Seattle Mariners MLB Pick Prediction 9/15/2021 by Tony T.
Red Sox at Mariners—MLB pick is Seattle Mariners +115. Starting for Seattle is Marco Gonzales. The lefthander has allowed two earned runs or fewer in eight of his past ten starts. Team is 8-2 in those games. Tanner Houck starts for the Red Sox. Houck past four starts allowed nine earned runs with eight walks in 18 2/3rd innings. After losing the opener of this series the Red Sox had lost six of eight. Past ten games Red Sox hitting .239 against lefty's and a bullpen ERA 5.11 with opponents batting .286. Play Seattle +115.