Using Phil Jackson's 40-20 rule—which requires winning 40 games before losing 20—only the Oklahoma City Thunder (42-14) and Detroit Pistons (40-13) qualify as legitimate contenders. The San Antonio Spurs and Boston Celtics have outside shots to join them as the season progresses.
NBA Power Rankings: Only OKC and Pistons meet 40-20 rule

Entering the second half of the season, only the Oklahoma City Thunder and Detroit Pistons have met Phil Jackson's 40-20 rule.