I'm going to go under 12 hours in an Ironman.
Now, that's not a huge deal to many people in the sport, but it represents a significant breakthrough for me. I'll need a sub-4:15 marathon, sub-6:30 bike and sub-hour swim. That also gives me 15 minutes for transitions.
Winning means sub-12. Losing means not sub-12. This is the first time in a while I've had such a quantitative goal.