The World Amateur Golf Ranking for men was introduced by The R&A, the governing body of the sport of golf outside the United States and Mexico, on 23 January 2007. It is based on the results of over 2,600 amateur tournaments per year (and amateurs participating in certain professional events) and is updated each Wednesday. Rankings are based on the players' average performances in counting events over a rolling period. This period was 52 weeks initially but was gradually expanded during 2016 to 104 weeks,[1] similar to those of the Official World Golf Ranking.

Like the Official World Golf Ranking for male professional golfers, the amateur ranking was initiated by The R&A to provide a more reliable means of selecting an appropriate field for one of its tournaments. The professional ranking was initially used to help set the field for The Open Championship and the amateur ranking plays a role in selecting the field for The Amateur Championship, which was previously selected mainly on the basis of national handicap systems. Other tournament organisers will be able to use the rankings to select players if they so wish.

The first set of rankings featured over 1,000 players from 46 countries and was headed by the 2006 U.S. Amateur champion, Richie Ramsay of Scotland.

In February 2011, the United States Golf Association (USGA) endorsed the rankings and announced it would use them for an exemption category in all their men's amateur championships, including the U.S. Amateur, beginning in 2011.[2]

The women's rankings were started in February 2011.[3] Japan's Mitsuki Katahira was the first number one.[4] American Rose Zhang holds the record for most weeks at the top of the rankings with 142 weeks.

Only three male and two female golfers have ever held the No. 1-ranking as both an amateur and a professional. The first to do so was Rory McIlroy, who was 17 years, 9 months and 2 days when he became the No. 1 amateur and 22 years and 10 months when he first became the world No. 1 professional. Jordan Spieth was the second to accomplish this feat, he was 18 years, 10 months and 24 days when he topped the amateur rankings and 22 years and 20 days when he reached No. 1 in the Official World Golf Ranking. Jon Rahm, who was ranked no. 1 for 60 weeks, became professional world no. 1 in July 2020. Lydia Ko was the first player to accomplish this feat in the female ranking. She was only 14 years and 3 days and held the ranking for a record 130 consecutive weeks, and she was a mere 17 years, 9 months and 9 days when she first reached the pinnacle of the Women's World Golf Rankings (WWGR). Atthaya Thitikul held the amateur No. 1 for 12 weeks in 2019–2020 and topped the WWGR on 31 October 2022.

Chronology of men's world number ones

#PlayerCountryFirst weekLast weekWeeksTotal weeks
1Richie Ramsay Scotland23 Jan 200730 Jan 200722
2Rory McIlroy Northern Ireland6 Feb 20076 Feb 200711
3Jamie Moul England13 Feb 200730 May 200717–
4Jamie Lovemark United States6 Jun 20076 Jun 20071–
Jamie Moul (2) England13 Jun 200713 Jun 2007118
Jamie Lovemark (2) United States20 Jun 20073 Aug 200778
5Rickie Fowler United States7 Aug 200721 Aug 20073–
6Colt Knost United States29 Aug 200724 Sep 200755
Rickie Fowler (2) United States5 Oct 200727 Feb 200822–
7Danny Willett England5 Mar 200821 May 20081212
Rickie Fowler (3) United States28 May 200825 Jun 20085–
8Michael Thompson United States2 Jul 20082 Jul 200811
Rickie Fowler (4) United States9 Jul 200813 Aug 2008636
9Danny Lee New Zealand20 Aug 200815 Apr 20093434
10Scott Arnold Australia23 Apr 200920 May 200955
11Morgan Hoffmann United States27 May 200910 Jun 200922
12Nick Taylor Canada17 Jun 200928 Oct 20092020
13Victor Dubuisson France4 Nov 200923 Dec 200988
14Matteo Manassero Italy30 Dec 200928 Apr 20101818
15Peter Uihlein United States5 May 201016 Jun 20107–
16Jin Jeong South Korea23 Jun 201030 Jun 20102–
Peter Uihlein (2) United States7 Jul 201021 Jul 20103–
Jin Jeong (2) South Korea28 Jul 201011 Aug 201035
Peter Uihlein (3) United States18 Aug 201022 Dec 201019–
17David Chung United States29 Dec 20105 Jan 201122
Peter Uihlein (4) United States12 Jan 201116 Mar 201110–
18Patrick Cantlay United States23 Mar 201123 Mar 20111–
Peter Uihlein (5) United States30 Mar 20111 Jun 20111049
Patrick Cantlay (2) United States8 Jun 201113 Jun 20125455
19Jordan Spieth United States20 Jun 201218 Jul 201255
20Chris Williams United States25 Jul 201225 Jul 20121–
21Hideki Matsuyama Japan1 Aug 20121 Aug 201211
Chris Williams (2) United States8 Aug 201212 Jun 20134546
22Brady Watt Australia19 Jun 201319 Jun 201311
23Pan Cheng-tsung Chinese Taipei26 Jun 201314 Aug 201388
24Matt Fitzpatrick England21 Aug 201316 Oct 20139–
25Cory Whitsett United States23 Oct 201327 Nov 201366
Matt Fitzpatrick (2) England4 Dec 201319 Feb 20141221
26Patrick Rodgers United States26 Feb 201411 Jun 20141616
27Ollie Schniederjans United States18 Jun 201425 Mar 20154141
28Jon Rahm Spain1 Apr 201516 Sep 201525–
29Maverick McNealy United States23 Sep 201521 Oct 20155–
Jon Rahm (2) Spain28 Oct 201522 Jun 20163560
Maverick McNealy (2) United States29 Jun 20168 Mar 201737–
30Curtis Luck Australia15 Mar 201715 Mar 20171–
Maverick McNealy (3) United States22 Mar 201722 Mar 20171–
Curtis Luck (2) Australia29 Mar 201712 Apr 201734
Maverick McNealy (4) United States19 Apr 201710 May 2017447
31Joaquín Niemann Chile17 May 201711 Apr 20184848
32Braden Thornberry United States18 Apr 201825 Apr 20182–
33Collin Morikawa United States2 May 201816 May 201833
34Doug Ghim United States23 May 201820 Jun 201855
Braden Thornberry (2) United States27 Jun 201810 Oct 20181618
35Justin Suh United States17 Oct 201810 Apr 20192626
36Viktor Hovland Norway17 Apr 201919 Jun 20191010
37Cole Hammer United States26 Jun 201921 Aug 20199–
38Takumi Kanaya Japan28 Aug 201928 Aug 20191–
Cole Hammer (2) United States4 Sep 201918 Sep 2019312
Takumi Kanaya (2) Japan25 Sep 201930 Sep 20205455
39Ricky Castillo United States7 Oct 20204 Nov 202055
40Davis Thompson United States11 Nov 202011 Nov 20201–
41Yu Chun-an Chinese Taipei18 Nov 202018 Nov 202011
42Keita Nakajima Japan25 Nov 202017 Feb 202113–
Davis Thompson (2) United States24 Feb 20217 Apr 202178
43Pierceson Coody United States14 Apr 202114 Apr 202111
Keita Nakajima (2) Japan21 Apr 202114 Sep 20227487^
44Ludvig Åberg Sweden21 Sep 202221 Sep 20221–
45Taiga Semikawa Japan28 Sep 202226 Oct 202255
Ludvig Åberg (2) Sweden2 Nov 20228 Feb 202315–
46Gordon Sargent United States15 Feb 202322 Feb 20232–
Ludvig Åberg (3) Sweden1 Mar 202315 Mar 20233–
Gordon Sargent (2) United States22 Mar 202329 Mar 20232–
Ludvig Åberg (4) Sweden5 Apr 20237 Jun 20231029
Gordon Sargent (3) United States14 Jun 202313 Sep 202314–
47Christo Lamprecht South Africa20 Sep 202327 Sep 20232–
Gordon Sargent (4) United States4 Oct 20234 Oct 20231–
Christo Lamprecht (2) South Africa11 Oct 202318 Oct 202324
Gordon Sargent (5) United States25 Oct 20231 Nov 20232–
Christo Lamprecht (3) South Africa8 Nov 202329 Nov 202348
Gordon Sargent (6) United States6 Dec 202310 Jan 2024627
Key
^ Record

Chronology of women's world number ones

#PlayerCountryFirst weekLast weekWeeksTotal weeks
1Mitsuki Katahira Japan16 Feb 20112 Mar 20113–
2Cecilia Cho New Zealand9 Mar 20119 Mar 201111
Mitsuki Katahira (2) Japan16 Mar 201120 Apr 201169
3Lydia Ko New Zealand27 Apr 201116 Oct 2013130130
4Su-Hyun Oh Australia23 Oct 201323 Oct 20131–
5Alison Lee United States30 Oct 201320 Nov 20134–
Su-Hyun Oh (2) Australia27 Nov 201327 Nov 201312
Alison Lee (2) United States4 Dec 201319 Feb 20141216
6Minjee Lee Australia26 Feb 20143 Sep 20142828
7Brooke Henderson Canada10 Sep 201417 Dec 20141515
8Céline Boutier France24 Dec 20141 Apr 20151515
9Andrea Lee United States8 Apr 20156 May 20155–
10Leona Maguire Ireland13 May 20154 May 201652–
11Hannah O'Sullivan United States11 May 201627 Jul 20161212
Leona Maguire (2) Ireland3 Aug 201628 Feb 201883135
12Lilia Kha-Tu Vu United States7 Mar 20184 Jul 201818–
13Jennifer Kupcho United States11 Jul 201825 Jul 20183–
Lilia Kha-Tu Vu (2) United States1 Aug 20181 Aug 20181–
Jennifer Kupcho (2) United States8 Aug 201824 Oct 201812–
Lilia Kha-Tu Vu (3) United States31 Oct 201816 Jan 20191231
Jennifer Kupcho (3) United States23 Jan 201929 May 20191934
Andrea Lee (2) United States5 Jun 20195 Jun 20191–
14Frida Kinhult Sweden12 Jun 201912 Jun 20191–
Andrea Lee (3) United States19 Jun 201919 Jun 20191–
15Atthaya Thitikul Thailand26 Jun 201926 Jun 20191–
Frida Kinhult (2) Sweden3 Jul 20197 Aug 201967
Andrea Lee (4) United States14 Aug 201916 Oct 20191017
Atthaya Thitikul (2) Thailand23 Oct 20191 Jan 20201112
16Pauline Roussin-Bouchard France8 Jan 202026 Aug 20203434
17Yu-Chiang Hou Chinese Taipei2 Sep 20209 Sep 202022
18Rose Zhang United States16 Sep 202031 May 2023142142^
19Ingrid Lindblad Sweden7 Jun 202310 Jan 20243232
Key
^ Record

Elite events

Prior to 2020, events were ranked in eight categories: Elite, A, B, C, D, E, F or G. The Elite events are listed below. The calculation of the ranking changed in 2020 and there are no longer any categories.[5]

Men

Women

References

  1. 1 2 "Notice Regarding 2016 Amendments". WAGR. Retrieved 8 February 2016.
  2. ↑ "The R&A, USGA Commence World Amateur Golf Ranking Partnership". USGA. 5 February 2011. Archived from the original on 4 March 2011.
  3. ↑ "The R&A to launch Women's World Amateur Golf Ranking". The R&A. 31 January 2011. Retrieved 6 July 2012.
  4. ↑ "Harvey breaks Law, while Boineau wins at home". The R&A. 16 February 2011. Retrieved 6 July 2012.
  5. ↑ "Power Method FAQs – Will there still be Elite events?". WAGR. Retrieved 29 January 2020.
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