When was the last time a No. 7 seed (Warriors) was a betting favorite over a healthy No. 2 seed (Rockets)? Three of the four series in the West and at least one in the East (two if you're a big Pistons fan) could go either way.

NBA playoffs are officially underway, and the first round is in full swing with eight matchups. The Knicks, Thunder and Clippers were all victorious on Thursday night, and they enter the weekend with series leads.

Sixteen teams in total make the NBA playoffs, eight teams from both the Eastern and Western Conference. The top six seeds in each conference advance based on the regular season record. The final two seeds in each conference are determined by the NBA Play-In Tournament.