 Lauzon won an eight-man tournament, defeating three fighters in one night in the World Fighting League and was crowned the WFL Grand Prix Champion.Lauzon was also named 2004 Massachusetts fighter of the year by local Massachusetts MMA outlets.Lauzon made his debut in the UFC upsetting former UFC Lightweight Champion Jens Pulver at "UFC 63" on September 23, 2006, winning via KO in 48 seconds and in doing so, beat 7-to-1 odds.