There are currently 6 classes for Paratriathlon. Athletes may require medical evidence as proof of physical or vision impairment.
 
·         TRI 1 – Athletes with spinal cord injuries, cerebral palsy or brain injury, how have no effective use of their legs (Di/Paraplegia) or arms and legs (Quadriplegic), double leg amputees. Athletes must use a recumbent handcycle or tricycle on bike course and racing wheel chair on run.
 
·         TRI 2 – Athletes with significant impairment in one leg, including single above knee amputees. Athletes ride bicycles and run with a prosthesis or crutches.
 
·         TRI 3 - This category includes athletes who are able to ride a bicycle and run, who have spinal cord injuries, neuromuscular disorder, Cerebral palsy, limb loss/ deficiency or loss of muscle strength in multiple limbs. They may use braces or prosthesis if required.
 
·         TRI 4 - Impairment in one or both arms including paralysis, limb deficiency or loss, either above or below the elbow. Athletes may use prosthesis, brace or sling on the bike and/or run.
 
·         TRI 5 - Moderate impairment in one leg below the knee, including loss of strength below the knee or single below knee amputees. Athletes ride bicycles and run with prosthesis if needed.
 
·         TRI 6 - Vision Impairment with less than 6/60 vision in best eye with best corrective vision. A guide or handler of the same sex is mandatory throughout the race. Athletes are tethered during the swim and run and use a tandem bicycle. All athletes shall use approved “black out glasses” during the entire run portion.