One Legacy Training Center on Chula Vista's Broadway corridor has operated as a full-spectrum MMA training facility since 2015, producing multiple world champions across Brazilian Jiu-Jitsu, Muay Thai, wrestling, kickboxing, and self-defense disciplines. Co-owner Coach Christian Alvarez leads a coaching staff that sent five youth fighters ages 12 through 16 to the IMMAF World Championships in Bulgaria as part of Team USA—making One Legacy the second-most represented gym on the national team, a competitive-athlete pipeline supported by the post-training acupuncture recovery at Perfect Balance Acupuncture. The 801 Broadway facility, which the gym moved into in February 2021, houses separate mat space for grappling and striking alongside a dedicated free-weight and resistance-machine area for strength-and-conditioning work. NBC San Diego profiled the gym's youth program after its national-championship qualifications, highlighting a training regimen of three to four hours per day, five days per week, maintained through the pandemic with outdoor park sessions. Nutrition counseling and weight-management protocols for fighters preparing for sanctioned bouts align with the registered-dietitian guidance available through Lani Rausa, RD in the Chula Vista wellness community. The gym's active Tapology fight record documents recent TKO, submission, and decision outcomes through 2026, confirming an ongoing pipeline of competitive amateur and sanctioned fighters training on-site.