Top 10 biggest upsets in NBA history

#2 Golden State Warriors VS Dallas Mavericks (2006-2007)

Warriors upset the Mavericks behind a great performance from Baron Davis

The Dallas Mavericks were the favorites to win it all heading into the 2007 playoffs, after setting a franchise record of 67-15 during the regular season under Avery Johnson. It was the same season in which Dirk Nowitzki was named the Most Valuable Player as he averaged 24.6 points, 8.9 boards, and 3.4 dimes, while shooting over 50% from the field.

The Warriors (eighth seed) had been a bad match-up for the Mavericks all season long, and had won all of their three season meetings. The same seemed to be the case in the Playoffs as the Mavericks played right into the hands of the Dubs trying to play small in the series rather than using their height advantage.

Baron Davis was the pick of the Warriors, as the 27-year old torched the Mavs with 25 points per game while shooting 45% from beyond the arc. Warriors lead the Mavs in offensive rating 113.8 to 106.6 and outscored them by almost 7 points a contest, to finally win the series 4 games to 2. With this defeat, the Warriors became the first no.8 seed team to defeat a no.1 seed team in a best of seven series.