• $18.1
    million

    1. Serena Williams - Total earnings: $18.1 million

    Prize money: $62,000

    Endorsements: $18 million

    Photograph: Julian Finney/Getty Images

  • $13
    million

    2. Caroline Wozniacki - Total earnings: $13 million

    Prize money: $7 million

    Endorsements: $6 million

    Photograph: Al Bello/Getty Images

  • $11.2
    million

    3. Sloane Stephens - Total earnings: $11.2 million

    Prize money: $5.7 million

    Endorsements: $5.5 million

    Photograph: Matthew Stockman/Getty Images

  • $11
    million

    4. Garbine Muguruza - Total earnings: $11 million

    Prize money: $5.5 million

    Endorsements: $5.5 million

    Photograph: Charles Platiau/Reuters

  • $10.5
    million

    5. Maria Sharapova - Total earnings: $10.5 million

    Prize money: $1 million

    Endorsements: $9.5 million

    Photograph: Clive Brunskill/Getty Image

  • $10.2
    million

    6. Venus Williams - Total earnings: $10.2 million

    Prize money: $4.2 million

    Endorsements: $6 million

    Photograph: Clive Brunskill/Getty Images

  • $8.5
    million

    7. P.V. Sindhu - Total earnings: $8.5 million

    Prize money: $500,000

    Endorsements: $8 million

    Photograph: David Ramos/Getty Images

  • $7.7
    million

    8. Simona Halep - Total earnings: $7.7 million

    Prize money: $6.2 million

    Endorsements: $1.5 million

    Photograph: Pascal Rossignol/Reuters

  • $7.5
    million

    9. Danica Patrick - Total earnings: $7.5 million

    Salary/prize money: $3 million

    Endorsements: $4.5 million

    Photograph: Jonathan Ferrey/Getty Images

  • $7
    million

    10. Angelique Kerber - Total earnings: $7 million

    Prize money: $3 million

    Endorsements: $4 million

    Photograph: Thomas Peter/Reuters