If someone could explain the Oregon State Beavers to me, I'd be eternally grateful. Because this season is just weird.

As you were wrapping up your holiday weekend, the Beavers were busy tying up a rather shocking home win over Arizona. Yes, Oregon State beat Arizona in Corvallis on Sunday night. No, I'm not making that up. No, I have no idea what to make of that information. And no, I'm not the only one.

Oregon State's weekend started off well enough, as the Beavers topped Arizona State (albeit without leading Sun Devils scorer Trent Lockett) 80-58 on Thursday night. That was a slightly surprising outcome, but ASU has struggled in the early goings this season, so it wasn't entirely unfathomable to see the Beavers -- a team with losses to Seattle, Texas Southern, Utah Valley, Colorado, Montana and George Washington -- score an "upset" league win at home.

No, unfathomable looks more like this: Oregon State narrowly edging Arizona, a prospective NCAA tournament team starring one of the nation's most efficient players, even as the Beavers shot 42.4 percent from the field and 2-of-15 -- yes, 2-of-15! -- from beyond the arc. How does that happen?

It helps that Oregon State shot 32 (and made 24) free throws. It helps that Arizona made only 13 of its 24 free throw attempts. Talk about retroactive box score brutality. Make two more free throws, and there's your win. But that still doesn't explain the general premise, which is that Oregon State beat Arizona in Pac-10 play Sunday night. This really happened. Crazy, right?

The win helps boost Oregon State's profile, but the Beavers would have to win their conference to get an NCAA berth. More than anything, the loss absolutely murders Arizona's RPI, and by extension the RPIs of every team Arizona plays and beats during the rest of the Pac-10 season. (Update: Commenter SciWings notes that the RPI doesn't really work this way, which is something I knew but didn't think about late Sunday night when I wrote this post. I'll respond at greater length in Wednesday's Hoopsbag. -- EB.) It's also one of those results that could ultimately make the Pac-10 a one-bid league. Unless Oregon State is suddenly much better than its nonconference record would indicate, that's the legacy this strange result will have.

Then again, don't rule anything out. At this point, when it comes to Oregon State, we're all just guessing.