IM: Ironman= 2.4 mile swim, 112 mile bike, 26.2 mile run = 140.6 miles
HIM: Half Ironman= 1.2 mile swim, 56 mile bike, 13.1 mile run = 70.3 miles
Transition: aka T1 and T2: change (meaning or for me, a change of clothes 
) from swim-to-bike and bike-to-run
Cadence: the speed at which a cyclist is pedalling/turning the pedals
Bonking: when you didn’t eat or drink enough to sustain your workout, or your electrolyes are out of whack; no power to move forward.
