Every study ever done shows that record in 1-run games boils down to luck. As much as we want it to be related to bullpen quality, statistically it just isn't. Probably has something to do with the fact that bullpens are used similarly with 1 run leads, 1 run deficits, or 3 run leads, so the team with the good bullpen is just as likely to hold the 3-run lead and keep it from becoming a 1-run game as they are to hold the 1-run lead and win a 1-run game. Similarly, they're equally likely to hold the 1-run deficit. The team with the bad bullpen is equally likely to blow the 1-run deficit into a bigger deficit, blow the 1-run lead into a 1-run deficit, and whittle the 3-run lead into a 1-run lead. Anyway, that's just conjecture. The statistical fact is that historically having a great bullpen DOES NOT make you more likely to win 1-run games. I'm sure you will give me some logical reason why this is wrong. I don't care. Empiricism always wins. It's a fact. Deal with it.
In fact, nothing correlates to record in 1-run games. It's luck. Still doesn't change the fact that more recently not that many of the Orioles wins have been of the 1-run variety, and they did just lose the streak of winning 1-run games. Doesn't seem to have damaged the team psyche. The fact is that both the Orioles and the Rays are playing much better than the Yankees RIGHT NOW, and with less than a month left in the season and the standings even with the Rays not far behind, right now will very quickly become all that matters. The Yankees still have the best roster of the 3 teams, but if they don't start playing up to that talent level in a hurry it just isn't going to matter. Everybody seems to love playing in Baltimore right now, the one ML player we traded away verbally expressed being sad to leave and feeling like "something special" was going on in Baltimore. The team dynamic is great at the moment. So good, in fact, I would even consider picking up the Reynolds option for next year in spite of the fact that statistically he's nothing in the vicinity of worth it. Or even half of it. But right now he's carrying the team, and if he hits another 6 or 8 homers this month and the O's make the playoffs it would be awfully hard to say "thanks for pulling us out of that 15-year funk, bye bye now!"