There are 79 medal events at the Parolympics, but only six sports. Do you ever wonder why. It has something to do with these letters and numbers.It's not some secret code. It's athlete classification. Not only does classification provide structure for the Parolympics, but it also helps determine an athletes eligibility for the sports and group athletes within some sports depending on activity limitation.For instance, a visually impaired skier won't typically compete against an athlete with a leg amputation ...