Victory over England's world No.1 Cassie Jackman in last week's final of the Texas Open in Houston took Australia's Rachael Grinham to the top of the WISPA World Grand Prix standings, published by the Women's International Squash Players' Association.

The Texas Open was the third WISPA Grand Prix event of this year, with Grinham claiming her second title after lifting the Kuwait Open crown in January.

Jackman, runner-up in all three events, slipped to two in the latest list with Vanessa Atkinson holding onto third place.

The Dutch No.1 claimed her first WISPA Grand Prix title in February with victory in the Qatar Airways Challenge in Doha.

World Grand Prix standings:

1 Rachael Grinham (AUS) 6265

2 Cassie Jackman (ENG) 5530

3 Vanessa Atkinson (NED) 4690

4 Natalie Grinham (AUS) 2695

5 Fiona Geaves (ENG) 2310

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