Most of the time, running is an individual sport. But the increasing popularity of relay races means more runners are learning how to get into that team spirit. Half-marathons and marathons often offer a relay option in which participants typically run one leg of three to seven miles. Relay-specific single-day or overnight events, like the nationwide series of Ragnar relays, require runners to trade off multiple legs of varying lengths, anywhere from three to 16 miles. Here’s how to tackle training for a relay so that you can run strong and also have fun. Read the full article in Runner’s World.