Women's World Golf Rankings
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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 (LPGA Tour), Ladies European Tour, Ladies Professional Golfers' Association of Japan (LPGA of Japan Tour), Korea Ladies Professional Golf Association (LPGA of Korea Tour), Australian Ladies Professional Golf (ALPG Tour), 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,[1] but then put back to 2006.

Calculation of the rankings

The rankings are based on performances on the eight major tours (LPGA, JLPGA, KLPGA, LET, ALPG, Symetra Tour, LETAS, CLPGA) 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 (when the rankings were introduced rankings were calculated for earlier periods; indeed the first ever set showed notional changes since the previous week). 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.[2]

  1. 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 (e.g., Morgan Pressel, who finished second in the 2005 U.S. Women's Open, or Michelle Wie from age 13).
  2. 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 (i) the number of events played or (ii) 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.

Many commentators saw the latter change as directed at Michelle Wie, who at the time was ranked second in the world despite having competed in only 16 women's professional events in the two-year period. However, the chairman of the Rolex Rankings Technical Committee defended the change as one designed to make the women's rankings more comparable to the Official World Golf Ranking for men, which use a minimum divisor of 40 events.

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.[3] This modification did not have an immediate impact on the rankings.

Criticisms

When they were introduced the rankings attracted considerable criticism on two grounds.[4] 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.[5] Four of the 12 places in the European Solheim Cup team are allocated on the basis of the rankings.[6]

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.[7] The individual participants from each qualified country are determined by the rankings immediately prior to the ANA Inspiration (known before 2015 as the Kraft Nabisco Championship) in the year of the event.[8]

Current top ten

As of 20 November 2017

Rank Change Player Country Points
1 Steady Shanshan Feng  China 8.43
2 Steady Park Sung-hyun  South Korea 8.39
3 Steady Ryu So-yeon  South Korea 8.36
4 Steady Lexi Thompson  United States 8.06
5 Increase4 Ariya Jutanugarn  Thailand 7.02
6 Decrease1 Chun In-gee  South Korea 6.77
7 Decrease1 Anna Nordqvist  Sweden 6.76
8 Decrease1 In-Kyung Kim  South Korea 6.61
9 Decrease1 Lydia Ko  New Zealand 6.25
10 Steady Cristie Kerr  United States 5.69

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.[9]
  • 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.[10]

World number ones

No. Player Country Start date End date Weeks Total weeks
1 Sörenstam, AnnikaAnnika Sörenstam  Sweden 21 February 2006 22 April 2007 60 60
2 Ochoa, LorenaLorena Ochoa  Mexico 23 April 2007 2 May 2010 158^ 158^
3 Shin, JiyaiJiyai Shin  South Korea 3 May 2010 20 June 2010 7 7
4 Miyazato, AiAi Miyazato  Japan 21 June 2010 27 June 2010 1 1
5 Kerr, CristieCristie Kerr  United States 28 June 2010 18 July 2010 3 3
Miyazato, AiAi Miyazato (2)  Japan 19 July 2010 25 July 2010 1 2
Shin, JiyaiJiyai Shin (2)  South Korea 26 July 2010 15 August 2010 3 10
Kerr, CristieCristie Kerr (2)  United States 16 August 2010 22 August 2010 1 4
Miyazato, AiAi Miyazato (3)  Japan 23 August 2010 24 October 2010 9 11
Kerr, CristieCristie Kerr (3)  United States 25 October 2010 31 October 2010 1 5
Shin, JiyaiJiyai Shin (3)  South Korea 1 November 2010 13 February 2011 15 25
6 Tseng, YaniYani Tseng  Chinese Taipei 14 February 2011 17 March 2013 109 109
7 Lewis, StacyStacy Lewis  United States 18 March 2013 14 April 2013 4 4
8 Park, InbeeInbee Park  South Korea 15 April 2013 1 June 2014 59 59
Lewis, StacyStacy Lewis (2)  United States 2 June 2014 26 October 2014 21 25
Park, InbeeInbee Park (2)  South Korea 27 October 2014 1 February 2015 14 73
9 Ko, LydiaLydia Ko  New Zealand 2 February 2015 14 June 2015 19 19
Park, InbeeInbee Park (3)  South Korea 15 June 2015 25 October 2015 19 92
Ko, LydiaLydia Ko (2)  New Zealand 26 October 2015 11 June 2017 85 104
10 Jutanugarn, AriyaAriya Jutanugarn  Thailand 12 June 2017 25 June 2017 2 2
11 So-yeon, RyuRyu So-yeon  South Korea 26 June 2017 5 November 2017 19 19
12 Park Sung-hyun  South Korea 6 November 2017 12 November 2017 1 1
13 Feng, ShanshanShanshan Feng*  China 13 November 2017 Present 2 2
Key
^ Record
* Current No. 1 player as of 20 November 2017[11]

Year end No. 1

No. 1 all weeks of the year

Weeks at No. 1 by country

Rank Country No. of
players
No. of
weeks
Players
1  Mexico 1 158 Lorena Ochoa
2  South Korea 4 137 Jiyai Shin, Inbee Park, Ryu So-yeon, Park Sung-hyun
3  Chinese Taipei 1 109 Yani Tseng
4  New Zealand 1 104 Lydia Ko
5  Sweden 1 60 Annika Sörenstam
6  United States 2 30 Cristie Kerr, Stacy Lewis
7  Japan 1 11 Ai Miyazato
8  Thailand 1 2 Ariya Jutanugarn
9  China 1 2 Shanshan Feng

As of 13 November 2017
Active players are in bold.

Players who have reached number one without having won a major title

Players Date of first No. 1 position First major title
Lorena Ochoa 23 April 2007 2007 Women's British Open
Ai Miyazato 21 June 2010 none
Lydia Ko 2 February 2015 2015 Evian Championship

Historical rankings

Annika Sörenstam of Sweden topped the first set of rankings, which was released on Tuesday 21 February 2006. Paula Creamer (United States); Michelle Wie (United States); Yuri Fudoh (Japan); and Cristie Kerr (United States) 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 (England 3; Scotland 2)
  • 4: Taiwan
  • 2: France
  • 1: Canada, Chile, Colombia, Denmark, Italy, Mexico, Norway, Philippines

See also

References

  1. ^ "Women's World Rankings to begin in 2005". Golf Today. 2004. Retrieved 2007. 
  2. ^ "Two modifications announced for Rolex Rankings". LPGA. 3 August 2006. Retrieved 2006. 
  3. ^ "Modification Announced to Rolex Rankings Calculations". LPGA. 9 April 2007. Retrieved 2007. 
  4. ^ Kelley, Brent (21 February 2006). "First Women's World Golf Rankings Stir Up Controversy". about.com. Retrieved 2011. 
  5. ^ "Entry Form, 2011 Ricoh Women's British Open: Rules and Conditions" (PDF). Ladies' Golf Union. Retrieved 2011.  See especially "7. Exemptions from Pre-Qualifying and Final Qualifying", pages 2-3.
  6. ^ "Solheim selection process changes". BBC Sport. 18 April 2006. Retrieved 2011. 
  7. ^ "32 Players, 8 Countries, 1 Crown: LPGA Unveils the International Crown" (Press release). LPGA. 24 January 2013. Retrieved 2013. 
  8. ^ "LPGA International Crown Celebrates "Year from Here" Event" (Press release). LPGA. 23 July 2013. Retrieved 2013. 
  9. ^ Sörenstam, Annika (February 2009). "Annika's Blog February 2009". Retrieved 2009. 
  10. ^ "Ochoa removed from women's golf rankings". UPI.com. 10 May 2010. Retrieved 2010. 
  11. ^ "Rolex Rankings". Rolex Rankings. Retrieved 2017. 

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.


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