Athletics: Mason Miller: 7 IP, 0.00 ERA, 0 H, 4 BB, 6 K
The Mariners were no-hit by Mason Miller through seven innings, managing four walks as their only means of getting on base. Fortunately for the Mariners, the Athletics bullpen still had to pitch, and they came back for a 2-1 win in Bryce Miller's debut outing, where he struck out 10. It was a fantastic Miller matchup, but still a poor performance by the Mariners at the plate.
Rangers: Jose Leclerc: 5 appearances, 6.2 IP, 0.00 ERA, 3 H, 0 BB, 11 K
This might be the best performance on here. Leclrec threw against the Mariners five times, and they weren't able to do a darn thing against him. He faced 23 batters, struck out nearly half of them, and allowed just one double and two singles. The Mariners couldn't touch Leclerc, which fits in with his career against them that has seen the Mariners post a .188/.303/.297 slash line against the Rangers reliever.
Rangers: Jordan Montgomery: 13.0 IP, 0.69 ERA, 10 H, 4 BB, 11 K
The Rangers just seemed to have the Mariners number this year. Montgomery faced the Mariners in back-to-back outings in September, outdueling Logan Gilbert (3.21 ERA in those starts) shutting the Ms down when it mattered most. The Mariners actually came back in the second game, but when Montgomery was on the mound, they just couldn't do a thing. He wasn't even their best pitcher against us, either.
Rangers: Jon Gray: 14.0 IP, 0.65 ERA, 6 H, 1 BB, 13 K
Gray did better than Montgomery in every fashion. They won both starts, he put fewer runners on base, he struck out more Mariners, and even went a bit deeper, throwing 7 innings in each game. Gilbert and Castillo did well against him, as the Mariners lost these games 2-0 and 2-1, but when you throw Leclerc after Gray, the Mariners would've done just as good not even showing up.
Astros: JP France: 11 IP, 1.64 ERA, 10 H, 2 BB, 12 K
I think this one, outside of the stupid Patrick Corbin one, is the one that hurts the most. Not because of who he is, but because it's the Astros. The lone redeeming factor? The Mariners actually won both games, as the magnificent 7-run 8th inning was during the first outing and a stellar Bryce Miller outing led the way in the second game en route to a 2-0 win for the Mariners.
I'm all flustured by the time I'm finishing this up. Re-living all these awful performances has put a terrible taste in my mouth. Let's get back on track, and the next article in the series will look at the pitchers that the Mariners dominated this season. That sounds like a much better experience to re-visit.