Jason Day leads by six and is on the verge of taking over as the No. 1 player in the Official World Golf Ranking. Here's what You Oughta Know heading into the final round of the BMW Championship at Conway Farms.
• Day is in search of his seventh PGA Tour win and fifth this season. He would become only the fifth player in the last 20 years to win five or more times in the same season, joining Tiger Woods, who did it 10 times, and Vijay Singh, who did it in 2004.