Natalie Grinham slips to three in the new list, ahead of USA's Natalie Grainger at four and England's Jenny Duncalf at five.
But New Zealander Shelley Kitchen records a career-high berth this month, rising a single place to No.6. The 28-year-old from Auckland followed her shock second round World Open defeat of Nicol David in Madrid last year by notching up her 12th Tour title at the Harrow Greenwich Open at the beginning of the year - and last month consolidated her status as the top Kiwi by becoming the New Zealand National Champion for the fourth time.
England's Alison Waters also celebrates a career-best ranking in the new list - leaping three places to No.8. Winner of the British National title for the first time in February, the 24-year-old Londoner has enjoyed a good year on the WISPA Tour - reaching he semi-finals of both the KL Open and Seoul Open against the seedings, and claiming her fifth Tour final berth in the Irish Open in Dublin in April.
1 [1] Nicol David MAS
2 [3] Rachael Grinham AUS
3 [2] Natalie Grinham NED
4 [4] Natalie Grainger USA
5 [5] Jenny Duncalf ENG
6 [7] Shelley Kitchen NZL
7 [6] Tania Bailey ENG
8 [11] Alison Waters ENG
9 [8] Laura Lengthorn-Massaro ENG
10 [10] Omneya Abdel Kawy EGY
11 [9] Vanessa Atkinson NED
12 [12] Vicky Botwright ENG
13 [13] Kasey Brown AUS
14 [14] Rebecca Chiu HKG
15 [15] Madeline Perry IRL
16 [16] Isabelle Stoehr FRA
17 [17] Samantha Teran MEX
19 [19] Jaclyn Hawkes NZL
19 [18] Engy Kheirallah EGY
20 [20] Annelize Naude NED
Issued by iSPORTmedia