Section 8: Safety Considerations
All-submissions-legal format including heel hooks places ONE's grappling division at the higher-risk end of competitive grappling. Mandatory comprehensive pre-event medical screening (cardiac, neurological, ophthalmological). On-site team physician + EMT + ambulance + AED. Concussion protocol per ONE medical guidelines. Slamming prohibited. Skin-infection screening before mat use. ONE's hydration testing + day-of-fight weight policy applies to grappling as well as MMA — IV-fluid use prohibited. Judges have stoppage-recommendation authority for safety even before referee acts.