Diamond Bar CrossFit is a training facility that provides intensive athletic training to customers in the Diamond Bar area. The gym does not use machinery, opting instead for a dynamic program utilizing free weights and resistance-based training. One half of the 3,000 square-foot facility features CrossFit racks and mats, while the other half is equipped with running lanes for athletic development; classes are available for sports performance training, olympic weight lifting and the CrossFit training program.