Any of the best running watches can help you pace a marathon, as long as the GPS accuracy is on point. By using the lap pace in particular you can judge your pace for each mile or kilometer split and ensure it’s in line with your overall goals, and stop yourself from going out too fast at the start.
However, Garmin’s PacePro tool goes beyond this by offering a pacing guide that’s tailored to your target time, the way you want to run the race and the course you’re going to run. That last part in particular makes it perfect for the Boston Marathon.
