A pacer, sometimes called a pace bunny or pace setter, is an experienced runner assigned to finish in a specific target time, like 4:00 or 5:30 for a marathon. They usually carry a sign or balloon showing their goal time and run at an even pace runners can tuck in behind. Following a pacer takes the guesswork out of pacing yourself.
They run a steady, pre-planned pace designed to cross the finish line at an exact target time, like sub-4:00. Runners chasing that same goal simply run alongside or behind them.
Look for a flag, balloon, or sign on a stick showing the target finish time, usually attached to a backpack. Race organizers also list the pace groups and their assembly point in the runner guide.
No, it only guarantees the pacer runs even splits for that time, not that you'll keep up the whole way. It's a pacing tool, not a promise, so fuelling and fitness still matter.
A pacer stays with the group for the entire race and crosses the finish line with them. A rabbit is a runner used in elite racing to set a fast early pace, and usually drops out before the finish.
It can help, since it removes the mental work of checking your watch every kilometre. Just pick a pace group that matches a realistic goal, not an ambitious one, or you'll burn out early.