The Verizon IndyCar Series is gearing up for a fast and furious finish to the 2014 season. A champion will be crowned one week from today, but there are still two races left to decide who will win it. The GoPro Grand Prix of Sonoma is tomorrow, with a grueling 85-lap race on the natural terrain road course. There are two practice sessions today, which will be followed by qualifying later this evening. The first practice session is in the books, and 2012 series champion Ryan Hunter-Reay was the fastest, recording a lap of 1:17.7150 seconds.

Ganassi teammates Scott Dixon and Tony Kanaan were second and third fastest in the first session. Penske teammates and championship contenders Helio Castroneves and Will Power were fourth and fifth. The second 45-minute practice session begins at 4:15 PM ET, with qualifications getting underway at 7:30 ET tonight. Power currently leads Castroneves by 39 points, and has won three of the last four races here.

Click here for GoPro Grand Prix of Sonoma Practice Session 1 results

Castroneves was the fastest in the second practice session on Saturday. Helio posted a lap of 1:18.6582 seconds on the 2.385 mile road course. Ryan Briscoe was second fastest in the session. Hunter-Reay was third, and Dixon and Power rounded out the top five. Pagenaud, who was out of the top 15 in the first practice, only improved to 13th in session two. The SPM team will have to find something for qualifying if they want to stay in the championship hunt heading into the season-ending race next Saturday.

Click here for GoPro Gran dPrix of Sonoma Practice Session 2 results

Next up will be qualifying for Sunday’s race. Qualifications, which begin at 7:30 PM ET, will consist of three rounds. Below you can watch highlights from Saturday’s practice sessions, courtesy of IndyCar.