First practice is over at Chase Field, and it's the usual suspects up front. In the 450cc class, it was San Manuel Yamaha's James Stewart setting the fastest lap, and in the Lites class it was new Fox Racing rider Ryan Dungey.
The track, so far, doesn't seem like the typical Phoenix track, as it's rutting up in the turns, and there's a sand section that was really popular with photographers (this one included).
The Lites practice saw a myriad of riders top the leaderboard. For quite a while, round-one winner (and last year's Phoenix SX winner) Jake Weimer sat on top with a 54.094-second lap, only for Dungey to top him with a 53.394 late in the session.