SAN JUAN CAPISTRANO, Calif. (AP) — Steffen Peters took the national Grand Prix dressage championship and earned one of four Olympic berths Sunday by winning the freestyle event at the Olympic dressage trials at Oaks Blenheim Farms. Peters, from San Diego, scored 79.5 percent out of a possible 100 percent and won the overall Grand Prix competition with an overall score of 75.863 percent aboard Ravel, a Dutch Warmblood gelding. Debbie McDonald of Hailey, Idaho, finished second overall while riding Brentina, a Hanoverian mare. Courtney King, of New Milford, Conn., took third on Harmony's Mythilus, another Dutch Warmblood gelding.