The best show on dirt in the East Bay every year is this longstanding trail-running triad of races that takes in the hills and scenery of Berkeley, Oakland, and Castro Valley, and culminates with a king and queen earning triple crown kudos based on their combined times from the threesome. The triumvirate starts in May with the Tilden Tough Ten, an out-and-back ten-miler starting at Inspiration Point on the very morn that all those nude Bay to Breakers runners toe the line across the bay. The Lake Chabot Trail Challenge Half Marathon, a moderately hilly 13.1-mile loop with a memorable after-race barbecue, follows suit about two weeks later in June. The troika concludes with the best and toughest of them all, the Dick Houston Memorial XC Race. This mid-June race is a rollercoaster of a beast through Joaquin Miller and Redwood parks with the dreaded hill known as the Woodmonster bringing many runners to a crawl. Runners can enter them all or any one of them, although true bragging rights and triple crown consideration only go to the studs and studettes who finish the trinity.