20 and 40 mins -- maybe not the average Run42 11/11/03 1:26:54 PM ET
Those times are ballpark guidelines. In reality the average times will be somewhat higher. These are benchmarks that many seasoned runners strive for. A sub-4 minute/km pace or sub 6:24/mile is not achievable by most of the runners that toe the line at your local 5k and 10k races.