The Mariners Are or Aren’t Wasting Historic Run Prevention
Arguably the best team in baseball history wasn’t built around superstars. It was built instead around depth and consistency, and as the 2001 Mariners won 116 games during the regular season, they posted an 82 ERA- that was, therefore, 18% better than league-average. While the pitching staff wasn’t particularly noteworthy, it was healthy and solid and bolstered by an all-time-great defense, which made for an outstanding level of run prevention. The 2014 Mariners aren’t anywhere near a 116-win pace — that would be almost impossible, and in fact these Mariners have already lost eight more games than those other Mariners. But to date, these Mariners have posted an ERA- of 79.
Following the trade deadline, much of the talk concerns the rotations built in Detroit and Oakland. Both were strong before adding, respectively, David Price and Jon Lester, and those are the teams considered to have the most intimidating pitching staffs down the stretch. But it’s the Mariners who’ve had better run prevention than anybody else, by a decent margin, and two things are remarkable: it’s remarkable that that’s true, and it’s remarkable that the Mariners still aren’t presently in a playoff position.