The summer decathlon requires an athlete to compete in the following disciplines: 100 metre sprint, long jump, shot put, high jump, 400 metres, 100 metre hurdles, discus, pole vault, javelin and 1500 metres.
My skiing decathlon will include these events: downhill, Super G, slalom, ski cross, aerials, moguls, ski jump - normal hill, ski jump - large hill, cross-country classic and cross-country pursuit.
And the usual rules apply - if an athlete crashes out on one run, they are out of the competition.
Don't hesitate to let me know how awesome this idea is.
(mascot images via Vancouver2010.com)