VERSAILLES, France--Dressage competition begins Tuesday, July 30 with competitors in the Grand Prix team and individual competition divided into six groups, with Groups A, B, and C competing on Tuesday beginning st 5 am Eastern, and Groups D, E, and F competing on Wednesday beginning at 4 am Eastern.

Adrienne Lyle on Helix (Photo by Andrew Ryback)For the U.S., Marcus Orlob on Jane competes in Group B at 7:57 am Eastern, and Adrienne Lyle on Helix competes in Group C at 9:52 am Eastern on Tuesday.

Steffen Peters on Suppenkasper competes on Wednesday in Group F at 9:01 am Eastern.

Others on interest include Germans Frederic Wandress on Bluetooth OLD at 7:09 in Group B on Tuesday and Isabell Werth on Wendy at 5:25 am in Group D on Wednesday, and Great Britain's Carl Hester on Fame at 6:25 am in Group A Tuesday and Charlotte Fry on Glamourdale at 4 am in Group D on Wednesday.