Complex sentence: During Daw's athletic career he has attended over 125 National Championships, 64 World Championships, 4 Paralympics and 1 Olympics for a medal total over 600 for Canada including a dozen World Championships, 19 World records and Paralympic Gold medal performances.
Split into simpler sentences: During Daw's athletic career he has attended over 125 National Championships, 64 World Championships, 4 Paralympics and 1 Olympics. For a medal total over 600 + for Canada including a dozen World Championships, 19 World records and Paralympic Gold medal performances.