How to Run a Backyard Ultra Simulation Before Race Day

Why run a Backyard Ultra simulation?

A Backyard Ultra asks you to repeat more than a running loop. You start on the hour, finish with time to spare, reset, and make another start. A simulation lets you practise that whole cycle in training, so you can discover what works while the stakes are low.

It is not a prediction of how many yards you will complete, and it does not need to be a miniature race. Think of it as a rehearsal with a specific question: Can I complete my routine comfortably? Does my planned food work when I am moving hour after hour? Do I know where each piece of kit is? Pick one or two things to learn, then build the session around them.

“

A useful simulation answers a question. It does not need to prove how tough you are.

Choose a goal and a sensible session length

Decide what you want to practise before you decide how long to run. You might focus on keeping an easy, repeatable effort; returning to the start area with enough time to reset; trying a few familiar foods; or rehearsing how you will organise your supplies.

Choose a duration that fits your current training, experience, and recovery. There is no single simulation length that suits every runner. A few repeated loops can reveal whether your routine is workable; a longer session may help you practise night running or crew handoffs, but also asks more of your body and recovery. If you follow a training plan or coach, fit the rehearsal into that plan rather than adding a big session on top.

Rehearse the hourly rhythm

Start each loop at the same time each hour, even if your route is shorter than a standard yard. Use a timer or a clear start signal, and practise arriving back with enough time for the next reset. The goal is to experience the repeated pattern, not to chase a particular pace.

Choose a route that is safe and easy to follow in the conditions you expect to train in. If the event is on trails, include appropriate terrain where practical. If you want to test darkness, do it with suitable lighting and a route you know. Keep the effort controlled enough that you can focus on the decisions you are rehearsing.

“

Practise the rhythm you will repeat: start, settle, finish, reset, and start again.

Practise the reset between loops

The break between loops can feel short once you have finished, changed a layer, found your food, and prepared for the next start. Rehearse those steps in the order you expect to use them. Keep frequently used items easy to reach, and make a simple checklist if you tend to forget something when tired.

Notice how much time each task takes. Can you sit down briefly without losing track of the next start? Is your next layer ready? Do you know when you need to leave your chair and head to the corral? These small details are easier to adjust during training than during a race.

Test your food and drink plan

Use familiar products and foods you are considering for race day, and practise when you plan to eat or drink them. Record what you intended to take and what you actually managed. Also note whether something was easy to prepare, appealing after several loops, and comfortable for you.

There is no universal menu or fluid target for every runner and every event. Weather, duration, effort, personal needs, and medical considerations all matter. Treat a simulation as a chance to learn about your own routine, not as a reason to copy someone else's numbers. If you have specific health or nutrition concerns, get advice from a qualified professional.

“

A plan is only useful if you can follow it when the next loop begins.

Include your crew and kit, if you will have them

If your event allows a crew, invite them into the rehearsal. Practise where you will meet, what information you need, and how you will communicate a change in plan. Give each item a consistent place so both you and your crew can find it without a long search.

If you will race without a crew, practise the self-supported version instead. Pack and organise your own supplies, and see whether your system is simple enough to use between loops. Always check your event's rules: support arrangements and what is permitted can vary.

Review what happened and make one change

After the session, write down what worked while the details are fresh. Compare your plan with what happened: loop timing, time available between loops, food and drink taken, clothing changes, and any decisions that felt rushed. A simple log can reveal a pattern that is easy to miss from memory.

Choose one practical change to test next time. You might move an item closer, simplify a checklist, adjust when you prepare a snack, or make the transition less hurried. Changing one thing at a time helps you understand which adjustment made a difference.

“

The value of a rehearsal is what you learn and carry into the next one.

Keep the simulation in perspective

A rehearsal is one training session, not a verdict on your potential. You do not need to reach a specific number of loops to benefit from it, and there is no requirement to make every simulation longer than the last. Follow your training plan, allow time to recover, and stop if you feel unwell or develop pain that concerns you.

The best outcome is a clearer, simpler plan: a steady approach to each loop, a reset you have practised, and a food, drink, and kit system you understand. YardFuel can help you map out that plan, compare it with what happened, and use what you learn to prepare for race day.