Nolan Jones hit a two-run homer, Alan Trejo had a double and three singles, and the Colorado Rockies beat the Washington Nationals 10-6. Karl Kauffman pitched four-plus innings of one-run relief for his first major league win as last-place Colorado improved to 6-3 since the All-Star break. Kauffmann, called up earlier in the day from Triple-A Albuquerque, had a 10.19 ERA over five previous appearances — three of them starts. He took over after opener Jake Bird worked two innings.