Ever wonder how your race times compare with runners at different ages? Or how they stack up to the standard for your age and gender? You can find out with this handy age grading calculator from Runner's World.
Warning: This is a tad addictive, especially if you start calculating what times you need to achieve the next level of competitive racing.
For example, to move up to the regional level, I need to increase my age-graded score by five percentage points and race a 5k in 21:09 (6:49 per mile pace). Is this doable? Certainly not overnight, but in time I think it is, especially with an increase in mileage and more speedwork.
On that note, I have 15 miles to run tomorrow morning. What are your weekend running or other workout plans?