The World Cup Champions have bounded ahead of former leader Cathrine Laudrup-Dufour (DEN); Germany's Isabell Werth now in second spot.
It was a defining year for equestrian sport, featuring the Paris Olympic Games and new horse welfare strategies.
A video captured a couple of years ago surfaced showing the Australian dressage and eventing rider repeatedly whipping a horse.
Alec Lochore (GBR) has been given the nod by the FEI to design the Olympic cross-country course at Santa Anita Park in Arcadia.
Áine Power and François Vergnol will drive strategic vision as heads of Sport & Games and Commercial, Marketing & Communications.
The goal is to improve equestrian athlete safety and increase knowledge through research and innovation in protective equipment.
Canada's Jessica Phoenix continues her climb up the leaderboard after a number of strong performances so far this year.
The LA28 Organising Committee also confirmed that Santa Anita Park in Arcadia will be the venue of the Para-Equestrian events.
All 40 member federations of the European Equestrian Federation present for the vote at the Extraordinary General Assembly in Frankfort.
The FEI Board has allocated the venues for future key events; World Cup Finals to return to Gothenburg, Sweden.