June 12, 2009 3:08 pm Tough Competition on Dog Beach For the first year, Purina Incredible Dog Challenge brings its events to the San Diego County Fair including Surfing Dogs at Dog Beach, Friday June 12, 2009. US & World Videos 0:58 Mystik Dan wins 150th Kentucky Derby in photo finish 2:07 San Diego Seals riding energy of ‘The Electric Factory' into National Lacrosse League semifinals 0:45 Knicks defeat 76ers, advance to Eastern Conference second round 58:18 Episode 308: The Level of Concern Game 0:40 Top Pirates prospect Paul Skenes dominating the minors. When will he make his MLB debut?