This notice is in English.

Assumption of risk

Not medical or safety advice. Plans, paces, fueling, turnaround times, tide or current estimates, and trip estimates are general calculations from the information you enter, and they may be wrong. Exercise, endurance events, hiking, cycling, paddling, and time outdoors carry a risk of serious injury or death. Consult a physician before beginning a training program, especially if you are pregnant, injured, or have a health condition. Check official weather, trail, park, tide, and water conditions, carry the safety gear the trip requires, and turn back when conditions require it. You participate at your own risk. Fueling suggestions are not nutritional advice for allergies or medical conditions.

AI output

This tool uses artificial intelligence provided by xAI. AI output may be inaccurate, incomplete, biased, or made up. Review and edit it before you rely on it, publish it, or give it to anyone. Do not submit confidential, personal, health, or client-identifying information. Text you submit is sent to xAI to generate a response. LIGHT & SALT BROADCASTING (LSB) LLC does not use that text to train its models.

Miles

A mileage tracker is miles left divided by the week

Start with the miles already on the shoe and the number where you retire it. A daily trainer often uses 400. Subtract, then divide by the miles that shoe takes in the week you typed. Round up. That many weeks from today is the retire date.

Price divided by the retire target is the cost per mile. A $140 shoe retired at 400 miles is 35 cents a mile. A shoe that is not used this week has no date, because the week never touches it.

The first date is free. $5 unlocks every shoe and a CSV. The training plan that feeds the week lives in RacePlan.

Track a pair

When to replace · Rotation plan

Shoes estimates retire dates by repeating the week you typed. It is not a wear inspection. Retire a shoe earlier for a torn outsole, a flat midsole, or a pain that showed up with that pair.