Summary: We talk with Kenny Carlson, a senior team leader in Garmin's Fitness software engineering group. No matter what device you race with, you'll find lots of good race-day info here. Nutrition expert Roxanne Vogel explains what supplements you should check out, and which you might be better off leaving alone. TrainerRoad's Jonathan Lee ends with great advice for racers who have other big races we want to fit in to our season.
