Write an article that captures the excitement of the upcoming Cal-bred stakes races at Del Mar Racetrack, focusing on the Opening Day races and the standout horses and jockeys, like Om N Joy and Kent Desormeaux. Delve into the rich history of Del Mar, emphasizing its evolution and significance in the horse racing community. Include insightful tips on reading the racing form and effective betting strategies for newcomers to the sport. Highlight upcoming events and fan engagement opportunities that make race day a unique experience. Conclude by discussing the importance of Cal-bred horses and the impact they have on California’s racing industry.