Christian Bethancourt's eephus: Kyle Seager (.193 WPA)
James Shields' fastball: James Shields (-.390 WPA)
Jerry's Equation: (Mariner pitcher K 6 + Mariners hitter BB 10!) - (Mariner pitcher BB 0 + Mariner hitter K 4) = +12
The Mariners hit five home runs and scored sixteen runs and won the baseball game by a lot, in case those two factors I just stated didn't make that clear.