Pure Silk Championship
|Established||2003, seventeen years ago|
|Length||6,379 yards (5,833 m)|
|Organized by||Kingsmill Resort|
|Format||Stroke play - 72 holes|
|Prize fund||$1.3 million|
|Tournament record score|
|Aggregate||264 Lexi Thompson ( 2017)|
|To par||−20 as above|
The Pure Silk Championship is a women's professional golf tournament on the LPGA Tour, played in Williamsburg, Virginia. The 72-hole tournament is held on the par-71 River Course at Kingsmill Resort, set at 6,340 yards (5,797 m) in 2013. 
Previously known as the "Michelob ULTRA Open at Kingsmill," the tournament was founded seventeen years ago in 2003 and played for seven seasons. Absent in 2010 and 2011, it returned for the 2012 season in early September, and switched to early May in 2013. 
Held at the Kingsmill Resort just south of Williamsburg, it formerly had one of the highest purses on the LPGA Tour, which attracted a very competitive field. It was voted the players' favorite stop on the tour in 2007 and fans' favorite tournament in 2008. 
With a purse of $2.2 million, the winner of this LPGA tournament automatically qualified for the season-ending LPGA Playoffs at The ADT, during the years the Playoffs were held, from 2006 through 2008. The purse for the revived event in 2012 was $1.3 million. The tournament was sponsored by Michelob ULTRA beer, and its parent company Anheuser-Busch. As of 2007, Anheuser-Busch had donated over $1.3 million to 30 different charities through the event. At the 2009 tournament, there was speculation that Anheuser-Busch would not continue its sponsorship; the late-2000s recession and the company's pending acquisition by InBev were among the factors. 
The talk led that year's winner, Cristie Kerr, and other players to lobby to keep the tournament.  In September 2009, Anheuser-Busch announced the discontinuation of its sponsorship of the event, and the LPGA Tour lost one of its most prominent stops. 
At the 2012 event, Jiyai Shin won a sudden-death playoff with Paula Creamer that extended to nine holes and a fifth day. After eight consecutive pars by both, all played on the par-4 18th hole, darkness forced the playoff's suspension until Monday morning. Play was restarted on the 16th hole, and Creamer bogeyed with three putts while Shin parred.  Both were a day late arriving to the Women's British Open in England; Shin won the year's final major by nine strokes and Creamer finished third.
Kerr won her third title at Kingsmill in a playoff in 2013 over Suzann Pettersen, the 2007 champion. The playoff went two holes, both played on #18, and ended when Kerr sank her putt for par. The sudden-death format was changed in 2013 to play that finishing hole three times, then move to over to #16 if a fourth hole was necessary. 
Kerr is the only multiple winner, with victories in 2005, 2009, and 2013. Annika Sörenstam set the event's 72-hole scoring record in 2008 at 265, 19 strokes under par. Shin set the stop's single round record in 2012, with a 62 (−9) in the first round.
- 2003: Michelob Light Open at Kingsmill
- 2004–2009: Michelob ULTRA Open at Kingsmill
- 2012–2017: Kingsmill Championship
- 2018: Kingsmill Championship presented by GEICO
- 2019–: Pure Silk Championship presented by Visit Williamsburg
River Course in 2013 
|Year||Date||Champion||Country||Winning score||To par||Margin
|Pure Silk Championship|
|2019||May 23–26||Bronte Law||England||65-68-67-67=267||−17||2 strokes||1,300,000||195,000|
|2018||May 17–20||Ariya Jutanugarn (2)||Thailand||66-67-66=199||−14||Playoff||1,300,000||195,000|
|2017||May 18–21||Lexi Thompson||United States||65-65-69-65=264||−20||5 strokes||1,300,000||195,000|
|2016||May 19–22||Ariya Jutanugarn||Thailand||69-69-65-67=270||−14||1 stroke||1,300,000||195,000|
|2015||May 14–18 ^||Minjee Lee||Australia||68-67-69-65=269||−15||2 strokes||1,300,000||195,000|
|2014||May 15–18||Lizette Salas||United States||67-68-65-71=271||−13||4 strokes||1,300,000||195,000|
|2013||May 2–5||Cristie Kerr (3)||United States||66-71-66-69=272||−12||Playoff||1,300,000||195,000|
|2012||Sep 6–10||Jiyai Shin||South Korea||62-68-69-69=268||−16||Playoff||1,300,000||195,000|
|Michelob ULTRA Open at Kingsmill|
|2009||May 7–10||Cristie Kerr (2)||United States||69-63-66-70=268||−16||2 strokes||2,200,000||330,000|
|2008||May 8–11||Annika Sörenstam||Sweden||64-66-69-66=265||−19||7 strokes||2,200,000||330,000|
|2007||May 10–13||Suzann Pettersen||Norway||66-72-68-61=274||−10||Playoff||2,200,000||330,000|
|2006||May 11–14||Karrie Webb||Australia||66-68-68-70=270||−14||7 strokes||2,200,000||330,000|
|2005||May 5–8||Cristie Kerr||United States||68-68-68-72=276||−8||5 strokes||2,200,000||330,000|
|2004||May 6–9||Se Ri Pak||South Korea||70-71-69-65=275||−9||2 strokes||2,200,000||330,000|
|Michelob Light Open at Kingsmill|
|2003||May 1–4||Grace Park||South Korea||67-68-69-71=275||−9||1 stroke||1,600,000||240,000|
- ^ Play extended one day due to rain delays.
* Tournament winner
- "Fact Sheet". Kingsmill Championship. April 2013. Retrieved April 20, 2013.
- "LPGA momentum continues with addition of Kingsmill Championship". LPGA. January 11, 2012. Retrieved May 25, 2012.
- "LPGA's contract with Kingsmill will not be renewed". Golf. Associated Press. September 23, 2009. Archived from the original on August 13, 2011. Retrieved May 1, 2013.
- "LPGA's future at Kingsmill resort uncertain". USA Today. Associated Press. May 12, 2009. Retrieved May 1, 2013.
- "Shin's par beats Creamer on ninth hole of sudden death at Kingsmill". PGA of America. Associated Press. September 10, 2012. Retrieved April 30, 2013.
- "Cristie Kerr wins in two-hole playoff". ESPN. Associated Press. May 5, 2013. Retrieved May 8, 2013.
- "Events: Kingsmill Championship". Virginia State Golf Association. 2013. Archived from the original on January 20, 2013. Retrieved May 1, 2013.