rival, the Number 8 seed Villanova Wildcats, entered the national championship with a 24–10 record. Villanova defeated Georgetown, 66–64, in what has been considered one of the biggest upsets in NCAA Division I men's basketball tournament history. As of 2021, this is the only time an 8th-seeded team has won the NCAA tournament and the 1984–85 Villanova team remains the lowest-seeded team to win the NCAA tournament. The Stanford Cardinal entered the 1998 NCAA Division I women's basketball tournament with the Number 1 seed in the West Region, posting a record of 21–5, including a Pac-10 regular season title. Their opponent, the Number 16 seed Harvard Crimson, entered the tournament with a 22–4 record and an Ivy League regular season title. Before this match, no Number 1 seed had ever fallen to a Number 16 seed since the field expanded to 64 teams in 1994. Harvard defeated Stanford, 71–67, in what has been considered the biggest upset in NCAA Division I women's basketball tournament history. 20 years later, a Number 16 seed had beaten a Number 1 seed in men's tournament (see below). The Virginia Cavaliers entered the 2018 NCAA Division I men's basketball tournament with the Number 1 overall seed, as well as the Number 1 seed in the South Region, posting a record of 31–2, including both an ACC regular season title and ACC tournament title. Their opponent, Number 16 seed UMBC, entered the tournament with a 24–10 record and an America East tournament title. Before this match, no Number 1 seed had ever fallen to a Number 16 seed since the field expanded to 64 teams in 1985. UMBC defeated Virginia, 74–54, in what has been considered the biggest upset in NCAA Tournament history. As of 2021, this is the only time a Number 16 seed has beaten a Number 1 seed in the Division I men's college basketball tournament. Entering the first round of the 2007 NBA Playoffs, the Dallas Mavericks had the best record in all of NBA at 67–15, six games up on second place, while their first round opponent, the Golden State Warriors, had a 42–40 record and had only qualified for the tournament on the last day of the regular season, having needed to win all of their last five games just to qualify. Dallas was captained by power forward Dirk Nowitzki, who was in the midst of a Hall-of-Fame career that