Athletic event (9)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">athletic event</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for decathlon that I've seen before include "Sporting event with 10 disciplines" , "Athletics contest" , "Versatile Olympic event" , "Olympic athletics event" , "sporting contest" .)
(Other definitions for triathlon that I've seen before include "Swimming/cycling/running event" , "Contest involving swimming, running and cycling" , "Multi-disciplined Olympic event since 2000" , "Triple athletic event" , "Sporting event" .)