Answer: decathlon

AnswerCrossword Clue
DECATHLON

Grueling athletic contest

DECATHLON

Rafer Johnson's Olympic Championship.

DECATHLON

Athletic event.

DECATHLON
Olympics event.
DECATHLON
Rafer Johnson's forte
DECATHLONTwo-day Olympic contest
DECATHLONOlympic event won by Bruce Jenner in 1976 and Ashton Eaton in 2012 and 2016