The Ladies European Tour Order of Merit will be renamed the Race to Costa del Sol from 2020 and offer a bonus prize fund of 250,000 euros (£214,000).
It means the top player on the money list at the end of the year will get an additional £107,000, with £64,000 for the runner-up and £43,000 for third.
The Andalucia Costa del Sol Open, which starts on Thursday, will also see its prize money doubled from next year.
The prize pot for the event in 2020 will be 600,000 euros (£514,000).
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