Birkie Lumberjack Run Be a part of Hayward’s legendary summer celebration, the Lumberjack World Championships by racing 5K! Start and finish at the Lumberjack Bowl, home of the Lumberjack World Championships.  Tour the streets of Hayward on a fast and fun course that is great for running, walking, or both. Get the full lumberjack experience at the Lumberjack…