SALT LAKE CITY — To sum up this past weekend: The Pac-12 did what the Pac-12 does best.

There were all sorts of twists and turns on the roller-coaster of a weekend. The South division is becoming a whirlwind. The North is becoming more intriguing with a conference-perfect Stanford team. Every game gains more weight as the season progresses.

Here's a look at what happened in Week 9.

Arizona (5-4, 2-4) at Washington (4-4, 2-3)

Score: Washington 49, Arizona 3

Game recap: When a team leads in the turnover battle, it typically wins.