During the 2011–12 NBA season, Parker helped the Spurs reach the best record in the West for the second straight season; the team tied the Chicago Bulls for the best overall record in the league. On 4 February 2012, Parker became the all-time assist leader of the franchise with 4,477, surpassing Avery Johnson, adding 42 points in a victory against Oklahoma City Thunder. The Spurs secured their 13th straight 50 win season despite the lockout (a new NBA record), and Parker received his fourth All-Star nod. He finished fifth in MVP award voting, receiving four first-place votes. Late in the season, the Spurs signed Parker's longtime friend Boris Diaw, who was claimed off waivers from the Charlotte Bobcats. In the 2012 NBA Playoffs, Parker averaged 20.1 points and 6.8 assists as the Spurs swept through the first two rounds, defeating the Utah Jazz and the Los Angeles Clippers. In the Western Conference Finals the Spurs faced the young Oklahoma City Thunder. After winning Game 1 and Game 2, 101–98 and 120–111 respectively, and taking a 2–0 series lead, the Spurs lost four consecutive games, thus losing the series 4–2.