Women's World Golf Rankings
The Women's World Golf Rankings, also known for sponsorship reasons as the Rolex Rankings, were introduced in February 2006. They are sanctioned by eight women's golf tours and the organisations behind them: Ladies Professional Golf Association, Ladies European Tour, Ladies Professional Golfers' Association of Japan, Korea Ladies Professional Golf Association, Australian Ladies Professional Golf, Symetra Tour, China Ladies Professional Golf Association Tour, the Ladies European Tour Access Series and also by the Ladies' Golf Union, which administers the Women's British Open and the United States Golf Association which conducts the U.S. Women's Open.
The idea of introducing a set of women's rankings similar to the Official World Golf Ranking was developed at the May 2004 World Congress of Women's Golf, and was first planned for 2005, but then put back to 2006.
Calculation of the rankings
The rankings are based on performances on the eight major tours over a two-year period. Amateur players are eligible. The system for calculating the rankings is similar to that for the men's Official World Golf Ranking. Players receive points for each good finish on the relevant tours, with the number of points available in each event depending on the strength of the field, as determined by the competitors' existing rankings. The only exceptions are the five LPGA majors and all Symetra Tour, CLPGA and LETAS events, which have a fixed-point allocation. Rankings are tapered so the recent results are more important.Original formula
When the rankings were first introduced in February 2006, a player's ranking as calculated in the above description was divided by the number of events played, with a minimum required events of 15 over the previous two years. In addition, players were required to play in a minimum of 15 eligible events over the previous two-year period to be included in the rankings.Formula revisions
On 2 August 2006 the Rolex Rankings Board and Technical Committee announced following its bi-annual meeting two changes to the ranking formula.- The elimination of the minimum event requirement. Players would no longer be required to participate in 15 qualifying events to be included in the rankings and could be included after playing in as few as one qualifying event. This change would also have the effect of permitting amateurs who had played well in one event to be ranked.
- The introduction of a minimum divisor. Where previously a player's point total was divided by the number of events she played over the previous 104 weeks, now the player's point total would be divided by the greater of the number of events played or 35. Thus, players with 35 or more events over the previous 104 weeks would continue to use the actual number of events played as the divisor, but players with fewer than 35 events would use 35 as the divisor.
On 16 April 2007, another modification in the formula was introduced. Instead of points being awarded on an accumulated 104-week rolling period, with the points awarded in the most recent 13-week period carrying a stronger value, points began to be reduced in 91 equal decrements following week 13 for the remaining 91 weeks of the two-year Rolex Ranking period rather than the seven equal 13 week decrements previously used. This modification did not have an immediate impact on the rankings.
2019 event table
The events with the highest "Event rating" in 2019 are shown in the following table.| Date | Event | Event ranking | Winner | Tour |
| The Evian Championship | Ko Jin-young | LPGA | ||
| ANA Inspiration | Ko Jin-young | LPGA | ||
| U.S. Women's Open | Lee Jeong-eun | LPGA | ||
| AIG Women's British Open | Hinako Shibuno | LPGA | ||
| KPMG Women's PGA Championship | Hannah Green | LPGA | ||
| Canadian Women's Open | Ko Jin-young | LPGA | ||
| Walmart NW Arkansas Championship | Park Sung-hyun | LPGA | ||
| HSBC Women's World Championship | Park Sung-hyun | LPGA | ||
| Hugel-Air Premia LA Open | Minjee Lee | LPGA | ||
| Kia Classic | Nasa Hataoka | LPGA | ||
| Bank of Hope Founders Cup | Ko Jin-young | LPGA | ||
| CME Group Tour Championship | Kim Sei-young | LPGA | ||
| Honda LPGA Thailand | Amy Yang | LPGA | ||
| Lotte Championship | Brooke Henderson | LPGA | ||
| LPGA Mediheal Championship | Kim Sei-young | LPGA | ||
| Pure Silk Championship | Bronte Law | LPGA | ||
| BMW Ladies Championship | Jang Ha-na | LPGA | ||
| Meijer LPGA Classic | Brooke Henderson | LPGA | ||
| Taiwan Swinging Skirts LPGA | Nelly Korda | LPGA | ||
| Buick LPGA Shanghai | Danielle Kang | LPGA | ||
| Indy Women in Tech Championship | M. J. Hur | LPGA | ||
| Cambia Portland Classic | Hannah Green | LPGA | ||
| Toto Japan Classic | Ai Suzuki | LPGA | ||
| ISPS Handa Women's Australian Open | Nelly Korda | LPGA | ||
| Volunteers of America Classic | Cheyenne Knight | LPGA | ||
| Thornberry Creek LPGA Classic | Shanshan Feng | LPGA | ||
| Aberdeen Standard Investments Ladies Scottish Open | M. J. Hur | LPGA | ||
| Diamond Resorts Tournament of Champions | Ji Eun-hee | LPGA | ||
| ShopRite LPGA Classic | Lexi Thompson | LPGA | ||
| Marathon Classic | Kim Sei-young | LPGA | ||
| Hana Financial Group Championship | Jang Ha-na | KLPGA | ||
| Hite Jinro Championship | Ko Jin-young | KLPGA | ||
| Japan LPGA Championship Konica Minolta Cup | Nasa Hataoka | JLPGA | ||
| Japan Women's Open Golf Championship | Nasa Hataoka | JLPGA | ||
| Descente Ladies Tokai Classic | Hinako Shibuno | JLPGA | ||
| Daikin Orchid Ladies Golf Tournament | Mamiko Higa | JLPGA | ||
| Hanwha Classic | Park Chae-yoon | KLPGA | ||
| ISPS Handa Vic Open | Céline Boutier | LPGA | ||
| Nobuta Group Masters GC Ladies | Asuka Kashiwabara | JLPGA | ||
| Earth Mondahmin Cup | Jiyai Shin | JLPGA | ||
| Ai Miyazato Suntory Ladies Open Golf Tournament | Ai Suzuki | JLPGA | ||
| Ito En Ladies Golf Tournament | Ai Suzuki | JLPGA | ||
| Yokohama Tire Golf Tournament PRGR Ladies Cup | Ai Suzuki | JLPGA | ||
| Daio Paper Elleair Ladies Open | Hinako Shibuno | JLPGA | ||
| Hokkaido Meiji Cup | Bae Seon-woo | JLPGA | ||
| KB Financial Group Star Championship | Lim Hee-jeong | KLPGA | ||
| Hoken No Madoguchi Ladies | Lee Min-young | JLPGA | ||
| T-Point ENEOS Golf Tournament | Momoko Ueda | JLPGA | ||
| NEC Karuizawa 72 Golf Tournament | Lala Anai | JLPGA | ||
| World Ladies Championship Salonpas Cup | Hinako Shibuno | JLPGA | ||
| Jeju Samdasoo Masters | Yoo Hae-ran | KLPGA | ||
| Nitori Ladies Golf Tournament | Ai Suzuki | JLPGA | ||
| CreaS F&C KLPGA Championship | Choi Hye-jin | KLPGA | ||
| SK Networks Seokyung Ladies Classic | Choi Hye-jin | KLPGA | ||
| Japan LPGA Tour Championship Ricoh Cup | Bae Seon-woo | JLPGA | ||
| Yamaha Ladies Open Katsuragi | Misuzu Narita | JLPGA | ||
| OK! Savings Bank Pak Se-ri Invitational | Cho A-yean | KLPGA | ||
| Panasonic Open Ladies Golf Tournament | Minami Katsu | JLPGA | ||
| Kia Motors Korea Women's Open Championship | Lee Da-yeon | KLPGA | ||
| Doosan Match Play Championship | Kim Ji-hyun | KLPGA | ||
| Shiseido Anessa Ladies Open | Hinako Shibuno | JLPGA | ||
| Nippon Ham Ladies Classic | Saranporn Langkulgasettrin | JLPGA | ||
| ADT CAPS Championship | Ahn Song-yi | KLPGA | ||
| Miyagi TV Cup Dunlop Women's Open Golf Tournament | Asuka Kashiwabara | JLPGA |
Criticisms
When they were introduced the rankings attracted considerable criticism on two grounds. First, it was widely felt that members of the LPGA of Japan Tour were ranked too high, since few of them had competed successfully outside Japan. Second, the minimum of 15 events needed to qualify for a ranking was widely seen as having been selected purely to enable Michelle Wie to be highly ranked because she had played exactly that number in the preceding two years, while every other highly ranked player had played many more events. If the women's rankings used the same system used for the men's rankings – that is a minimum number of events of one but a minimum denominator of 40 to calculate the average points per tournament – Wie would have been just outside the top 10. But under the women's ranking system where only players who had played a minimum number of events were included, if the minimum number of events had been set higher than 15, Wie would not have been ranked at all.The August 2006 revised formula addressed the second criticism. The technical committee that administers the rankings urged patience with regard to the first criticism, since the continuing "strength of the field" weighting of tournaments may correct the issue without any technical changes being made.
Significance of the rankings
The rankings are used by each of the sponsoring tours to determine eligibility criteria for certain events. For example, 40 of the 144 places in the Women's British Open are currently awarded on the basis of the rankings—10 to LET members and 30 to LPGA members. Four of the 12 places in the European Solheim Cup team are allocated on the basis of the rankings.Since 2013, the rankings at the end of each LPGA Tour season in odd-numbered years have determined the eight countries that will compete in the following year's International Crown, a LPGA-sponsored team event scheduled in even-numbered years and first held in 2014. More specifically, the countries whose top four players have the highest cumulative rankings are invited to compete. The individual participants from each qualified country are determined by the rankings immediately prior to the ANA Inspiration in the year of the event.
Current top ten
As of 16 March 2020| Rank | Change | Player | Country | Points |
| 1 | Ko Jin-young | 8.44 | ||
| 2 | Nelly Korda | 5.85 | ||
| 3 | Park Sung-hyun | 5.71 | ||
| 4 | 1 | Nasa Hataoka | 5.34 | |
| 5 | 1 | Danielle Kang | 5.32 | |
| 6 | Kim Sei-young | 5.04 | ||
| 7 | Brooke Henderson | 4.84 | ||
| 8 | Minjee Lee | 4.61 | ||
| 9 | Lexi Thompson | 4.54 | ||
| 10 | Lee Jeong-eun | 4.45 |
Change column indicates change in rank from previous week.
Notes
- On 12 January 2009, Annika Sörenstam, who was ranked No. 3 the previous week despite having announced her retirement effective at the end of the 2008 season, was removed from the rankings. No official explanation was given for her removal. Sörenstam later posted in her personal blog that she asked to be removed.
- On 10 May 2010, one week after announcing that she was retiring from golf, Lorena Ochoa also voluntarily removed herself from the rankings. Her last position in the rankings was No. 2 for the week of 3 May 2010.
World number ones
| No. | Player | Country | Start date | End date | Weeks | Total weeks |
| 1 | ||||||
| 2 | ||||||
| 3 | ||||||
| 4 | ||||||
| 5 | ||||||
| 6 | 109 | |||||
| 7 | ||||||
| 8 | ||||||
| 9 | ||||||
| 104 | ||||||
| 10 | ||||||
| 11 | ||||||
| 12 | ||||||
| 13 | ||||||
| 106 | ||||||
| 28 October 2018 | ||||||
| 14 | ||||||
| * | Present |
Total weeks at No. 1
| Rank | Player | Country | Weeks | Order | Majors |
| 1 | 158 | 2 | 2 | ||
| 2 | 109 | 6 | 5 | ||
| 3 | 106 | 8 | 7 | ||
| 4 | 104 | 9 | 2 | ||
| 5 | 60 | 1 | 10 | ||
| 6 | * | 46 | 14 | 2 | |
| 7 | 25 | 3 | 2 | ||
| 7 | 25 | 7 | 2 | ||
| 9 | 23 | 13 | 1 | ||
| 9 | 23 | 10 | 2 | ||
| 11 | 20 | 12 | 2 | ||
| 12 | 19 | 11 | 2 | ||
| 13 | 11 | 4 | 0 | ||
| 14 | 5 | 5 | 2 |
Year end No. 1
Weeks at No. 1 by country
| Rank | Country | No. of players | No. of weeks | Players |
| 1 | * | 5 | 216 | Jiyai Shin, Inbee Park, Ryu So-yeon, Park Sung-hyun, Ko Jin-young |
| 2 | 1 | 158 | Lorena Ochoa | |
| 3 | 1 | 109 | Yani Tseng | |
| 4 | 1 | 104 | Lydia Ko | |
| 5 | 1 | 60 | Annika Sörenstam | |
| 6 | 2 | 30 | Cristie Kerr, Stacy Lewis | |
| 7 | 1 | 23 | Shanshan Feng | |
| 7 | 1 | 23 | Ariya Jutanugarn | |
| 9 | 1 | 11 | Ai Miyazato |
Active players are in bold.
Players who have reached No. 1 without having won a major title
Historical rankings
of Sweden topped the first set of rankings, which was released on Tuesday 21 February 2006. Paula Creamer ; Michelle Wie ; Yuri Fudoh ; and Cristie Kerr took the other places in the top 5. The top one hundred players in the initial rankings came from the following countries:- 25: South Korea
- 23: Japan
- 21: United States
- 6: Australia, Sweden
- 5: United Kingdom
- 4: Taiwan
- 2: France
- 1: Canada, Chile, Colombia, Denmark, Italy, Mexico, Norway, Philippines
| Rank | Player | Country | Points |
| 1 | Annika Sörenstam | 18.47 | |
| 2 | Paula Creamer | 9.65 | |
| 3 | Michelle Wie | 9.24 | |
| 4 | Yuri Fudoh | 7.37 | |
| 5 | Cristie Kerr | 6.94 | |
| 6 | Ai Miyazato | 6.58 | |
| 7 | Lorena Ochoa | 6.10 | |
| 8 | Jeong Jang | 4.91 | |
| 9 | Hee-Won Han | 4.49 | |
| 10 | Juli Inkster | 4.11 |
| Rank | Player | Country | Points |
| 1 | Annika Sörenstam | 17.41 | |
| 2 | Lorena Ochoa | 9.87 | |
| 3 | Karrie Webb | 9.39 | |
| 4 | Paula Creamer | 8.13 | |
| 5 | Cristie Kerr | 8.04 | |
| 6 | Juli Inkster | 7.75 | |
| 7 | Michelle Wie | 6.83 | |
| 8 | Jeong Jang | 6.09 | |
| 9 | Yuri Fudoh | 5.98 | |
| 10 | Ai Miyazato | 5.79 |
Breakdown by nationality
A breakdown of the year-end top-100 by nationality.| Country | 20 19 | 20 18 | 20 17 | 20 16 | 20 15 | 20 14 | 20 13 | 20 12 | 20 11 | 20 10 | 20 09 | 20 08 | 20 07 | 20 06 |
| 40 | 39 | 41 | 40 | 39 | 39 | 41 | 38 | 37 | 36 | 35 | 31 | 32 | 26 | |
| 20 | 24 | 22 | 22 | 21 | 18 | 19 | 17 | 15 | 18 | 22 | 23 | 20 | 23 | |
| 14 | 11 | 10 | 10 | 11 | 14 | 17 | 18 | 22 | 22 | 20 | 21 | 23 | 24 | |
| 4 | 4 | 3 | 2 | 3 | 3 | 1 | 1 | 2 | 3 | 2 | 2 | 3 | 2 | |
| 3 | 3 | 5 | 3 | 2 | 3 | 1 | 3 | 3 | 5 | 5 | 4 | 4 | 4 | |
| 3 | 4 | 3 | 3 | 2 | 1 | 3 | 1 | 1 | ||||||
| 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 2 | 1 | 2 | 2 | 1 | ||
| 2 | 2 | 2 | 3 | 2 | 3 | 3 | 3 | 2 | 2 | |||||
| 2 | 2 | 2 | 2 | 3 | 2 | 3 | 2 | 4 | 3 | 3 | 4 | 3 | 3 | |
| 2 | 1 | 2 | 1 | 1 | 1 | |||||||||
| 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | |||||
| 1 | 2 | 2 | 1 | 2 | 3 | 2 | 5 | 4 | 3 | 4 | 7 | 4 | 6 | |
| 1 | 1 | 1 | 2 | 1 | 1 | |||||||||
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