Following the Compulsory test, Averill Saunders sits in third place in the women’s competition and Talmage Conrad is fifth in the men’s.
Athletes, lungers and horses have gathered as the world’s leading vaulters challenge for the FEI Vaulting World Championship titles.
The host team edged Great Britain and Denmark, helped by a personal best from Katharina Hemmer riding Denoix PCH.
Brittany Fraser-Beaulieu and Jaccardo lead the way for the Canadian effort and qualify to compete in Friday's Grand Prix Special.
Day one of the World Championships in Aachen is done and dusted, with a couple of strong performances by the Canadian lead-off riders.
Denmark and Great Britain remain in contention after half the field competes; team medals to be decided Wednesday.
The eventing field is confirmed, with 88 athletes representing 27 nations, including defending World champions Team Germany.
The Canadian eventer reported that "Roberto" sustained an injury while preparing for the championships in Aachen.
A look at how riders, horses and teams are stacking up heading into next month's FEI World Championships in Aachen.
The FEI has released the lists of riders and drivers nominated for the World Championships, August 11-23; definite entries announced July 27.