Only Iga Świątek and Aryna Sabalenka so far
https://en.wikipedia.org/wiki/List_of_WTA_number_1_ranked_singles_tennis_players
and they have a big lead over 3rd place:

1 A. Sabalenka 9416
2 I. Swiatek 8295
3 C. Gauff 6530

There are events starting 27-30 Dec but they all run into Jan:
December 2024

• Dec 2 - Dec 8, 2024. Hard. Open In Arte Angers Loire. ...

• Dec 2 - Dec 8, 2024. Clay. MundoTenis Open. ...

• Streaming Live. Dec 9 - Dec 15, 2024. Hard. ...

• Dec 27 - Jan 5, 2025. Hard. United Cup. ...

• Dec 29 - Jan 5, 2025. Hard. Brisbane International presented by Evie. ...

• Dec 30 - Jan 5, 2025. Hard. ASB Classic. ...

• Dec 30 - Jan 4, 2025. Hard.
  

  Are ranking points awarded part way through tournaments? Even if so, 2886 swing to Gauff from first 2 to 4 days seems unlikely to say the least.
  
  @sortwie enough to resolve?