Pentathlon? Tetrathlon? Quadrathlon?

After seeing this story (track and field officials are dropping one of the five events of the pentathlon in an attempt to keep the sport viable) I immediately began to imagine some other headlines...

DECATHLON TRIMMED TO EIGHT EVENTS; 20% COST SAVINGS CITED

MARATHON SHORTENED TO 5K FUN RUN; SAID TO FOSTER INCLUSIVITY, ATTRACT VIEWERS WITH SHORT ATTENTION SPANS

BIATHLON DROPPED; MARKET RESEARCH INDICATES THE ONLY PEOPLE WHO CARE ABOUT SNIPERS ON SKIS ARE MILITIAMEN WHO DON'T WATCH TV ANYWAY