At the 2010 FEI World Equestrian Games held in Kentucky, United States, Bechtolsheimer surpassed her personal best scores and gained three British International Grand Prix records with Mistral Højris getting 82.511% in the Grand Prix, 81.708% in the Grand Prix Special and 85.350% in the Grand Prix Freestyle, gaining her three silver medals, being beaten only by the celebrated Edward Gal and Totilas.