How much does weight effect speed?
How much does weight effect speed? If you do the math, that works out to an extra 1.4 seconds per mile for every extra pound they carried, under those particular conditions. RELATED: Lose the pounds, feel great, and run your fastest with Run to Lose from Runner's World.
How much faster with less weight?
One of the easiest ways to get faster is, simply, to lose weight. For every pound you lose, science says that you will run approximately two seconds faster per mile.
Are you faster if you weigh less?
Perhaps the best-known algorithm in endurance sports is 1 pound = 2 secs/mile. In other words, for every pound of body weight lost, a runner should expect their pace to drop an average of two seconds per mile.