Record your time accurately. In order to uphold the honesty and integrity of the race make sure you accurately time your run/walk from the start all the way through to the finish. The clock should run from the moment you start to the moment you cross the finish line, despite any interruptions that may occur during the course.

Go the distance. Don’t cut corners or shortcut the official distance of the race. If you have a GPS-enabled running monitor (such as a fitness watch), make sure it displays that you have reached the official distance designated in the event before recording the time. If you do not have a GPS tracker, then please ensure you have accurately measured the course you will run/walk, so that it meets the distance attributed to the event you are participating in. 

Don't carry loose change or a set of keys in your pocket. Although the constant jingling or clanging may not bother you, it could annoy those who are running near you.

Don't drop clothing along a race course or jogging path, especially on someone's private property, unless the race allows. Many larger races have clothing donation partners to recycle clothes.

Don't toss trash such as water bottles, gel, or bar wrappers on the ground. An exception to this is if you're near an aid station. In that case, volunteers expect to pick up discarded water cups.

Keep your fluids to yourself. If you need to spit, blow your nose, or throw up, move to the side of the road and do it there, if you can't get to a port-a-potty in time.

Move to the side before slowing down to walk or stopping to tie your shoe, stretch, or take a drink from your water bottle.

Signal to those behind you if you're going to slow down or start to walk. This prevents runners behind you from having to maneuver around you.

Signal your pass if you need to squeeze through a tight space to pass another runner. This is especially important if the runner ahead of you is wearing headphones.

Stay to the back of the pack if you are walking or jogging in a group, running with a pet, or jogging with a stroller (when allowed). While this may be a fun run for you, it may be a competitive event for those around you.

Keep moving through the finish line when you complete your race. Even if you are exhausted, you risk getting hit by other runners if you stop right away.