Nailah, Hortensia, Xorn, Brahms, Athos, Red
Xorn sweeps. Nailah can't double him, Death Knell deals with draining, and he outslugs the rest.
Nailah beats Hortensia (her evade sees her to a second turn even if she fails to one-round), Brahms, and Red. Athos is a tough match for her, I believe he barely 2HKOs and isn't 2HKOed himself. Think that one comes down to authority, although a Savage could also tilt things her way, which works as a tiebreak. Close though.
Athos' uber res spoils Hortensia, he wins this week vs. Red, and him vs. Brahms... uh, Brahms can spoil dark some, which helps, but he has an ugly weakness to fire, and yeah Athos should at worst 3HKO before being 2HKOed.
Hortensia burns Brahms and against Red... yeah her defence and AD should let her avoid the OHKO. But Red can optimise his fire/ice/lightning defences and come verry close to surviving. Probably just falls short, but yikes, close. Probably good that he does, because Hortensia downgrading seems weird.
Red outspeeds Brahms, but just misses the 2HKO thanks to his draining. ... but Brahms also misses the 2HKO, even if he always lands his attacks, and Red can use a sword to make that less likely.
Xorn > Nailah > Athos > Hortensia > Red > Brahms, so Athos up and Brahms down.
Peach, Mario, Beowulf, Tana, Yulie
I think Super is more or less correct here. Subtracting the Poco votes...
Peach: 3-1 (Loss: Beowulf)
Tana: 3-1 (Loss: Peach)
Yulie: 2-2 (Loss: Tana, Peach)
Beowulf: 2-2 (Loss: Tana, Yulie)
Mario: 0-4 (Loss: Everyone)
Interestingly Tana is closest to losing to Mario, I think, since she only three-rounds him and he hits weakness with Jump, so if he OHKOs he wins? But... he may not OHKO, and actually Javelin counters may let Tana barely 2HKO instead (well 3HKO, but y'know), and her evade is turn 1, so yeah.
Magic Sword isn't silenceable so Beowulf should beat Peach. Him vs. Yulie... her MDef can make a mess of things for him, but yeesh, his physical hurts Yulie fairly badly and Shock is a serious risk later in the fight too. EDIT: But she does win, see below.
Mallow, October, Chisato, Guy, Anna, Miranda
Again, mostly copying Super here.
October: 4-1 (Loss: Chisato)
Guy: 4-1 (Loss: October)
Chisato: 3-2 (Loss: Guy, Mallow)
Mallow: 3-2 (Loss: October, Guy)
Miranda: 1-4
Anna: 0-5
Main one worth weighing in on is Chisato vs. Anna, which is quite close. I'm assuming Chisato's hit lets her hit 2/3 (but not 2/2). And she can probably avoid counters with Tear Gas or some other tech, while still 2HKOing, since Anna is frail. Anna might still win but Chisato also resists lightning. If I'm overestimating Tear Gas it's possible Anna wins, since she could go first and outslug with counters then. But eh.
Mallow vs. Guy is somewhat interesting too but I have to think Guy can pull off operation infinite stall here; Mallow damage just isn't very good.