Michael Jung, the reigning world and European champion, sent an ominous warning to his London 2012 rivals by winning the Luhmühlen four-star event in Germany yesterday.
Jung also landed the three-star class, taking both sections by comfortable margins to underline his powerful Olympic gold-medal credentials.
The German rider could afford to have two showjumping fences down and still take the four-star title following Australian Andrew Hoy's dramatic implosion on Rutherglen.
Hoy, second behind Jung overnight, accrued 14 faults to drop outside the top five, while Britain's Oliver Townend suffered a similar fate, falling from third to eighth aboard Armada after collecting 12 faults.
Jung and Leopin FST emerged from the showjumping arena with four faults for a final total of 36.80 penalties, with Wiltshire-based Australia international Lucinda Fredericks second.