<\/p>\n
The long run<\/strong> is often the training that raises the most questions when preparing for a half marathon. Is 16 kilometers enough? Should you reach 18? Is it necessary to complete the 21.097 kilometers before race day? The answer hinges less on a single figure and more on the accumulated training. This session aims to improve your ability to sustain a prolonged effort and to boost your confidence, while still leaving you in a condition to keep training during the week.<\/p>\n For a runner preparing their first half marathon with the objective of finishing, a maximum long-run of 16 to 18 kilometers<\/strong> can be a reasonable reference. That said, those 16\u201318 kilometers must come from a progression. If your current longest outing is eight kilometers, it isn\u2019t wise to double it from one week to the next just because the race is approaching. Muscles, tendons, and joints need to get used to spending more time running. You also must learn to regulate effort: a long run done too fast can leave you with more fatigue than useful training. Think of the long run as a piece of the whole. A runner who trains three or four days a week, keeps a steady routine, and gradually increases the duration of their runs will be better prepared than someone who hardly runs during the week and concentrates almost all their kilometers on Sunday.<\/p>\n If you have already completed half marathons, train regularly, and are chasing a time, you can consider long runs of 18 to 22 kilometers<\/strong>. In some cases, slightly exceeding race distance helps to develop endurance and to rehearse how you will manage your pace as your legs begin to tire. The advanced plans of the Boston Athletic Association<\/strong> (organizers of the Boston Marathon, a reference for serious runners) include long runs close to 20 kilometers or higher. However, running more kilometers only makes sense if you can assimilate them. If a 22-kilometer run leaves you with several days unable to train normally, perhaps an 18 or 19-kilometer session will be more beneficial. The goal is not to win the Sunday training, but to arrive on race day in the best possible condition. The content of the session also matters. Most long runs can be completed at a comfortable pace, at which you can still hold a conversation. Runners with a solid base can introduce some segments at their anticipated half-marathon pace, but they don\u2019t need to turn the entire outing into a race simulation.<\/p>\n Eighteen kilometers do not impose the same load on someone who finishes in under ninety minutes as on someone who needs more than two hours. Therefore, beyond the distance, it is worth paying attention to the total running time<\/strong>. A beginner who aims for a fixed distance without considering pace may end up with a session that is too long for their current level. Assess where you start from. If your usual runs last 45 minutes, the next step should not be to suddenly run for two hours. Increase gradually and adapt the progression to how you feel. Elevation, terrain, and temperature also influence: covering 15 kilometers on a flat loop does not necessarily entail the same effort as doing it on hilly terrain. A good long run finishes with fatigue, but it should not disrupt the rest of your plan. If you carry fatigue for several days, if pain appears that alters your running form, or if you need to skip the next session repeatedly, review the duration and the pace. A study involving half and full marathon participants did not find a relationship between the distance of the longest run and injury risk in its sample; even so, that result does not allow setting a safe distance for every person.<\/p>\n As a guide, schedule your longest run two to three weeks before the race<\/strong>. After that, reduce the load to arrive rested. Trying to complete 21 kilometers the weekend before provides little extra preparation and can leave you with unnecessary fatigue. During long runs you can also test the breakfast, shoes, and fueling you will use on race day. If you foresee yourself running for a long time, practice when to drink or consume carbohydrates, rather than experimenting for the first time on half-marathon day. In short, if you\u2019re debuting, don\u2019t obsess about reaching 21 kilometers: gradually reaching around 16 or 18 may be enough. If you have experience and a higher weekly volume, you\u2019ll be able to consider longer distances. The right long run is the one from which you recover well and that fits into a steady preparation.<\/strong><\/p>\n<\/div>\nIf you\u2019re debuting, you don\u2019t need to complete the race distance<\/h2>\n
The experience changes the recommended distance<\/h2>\n
The effort time matters as much as the kilometers<\/h2>\n
When should you do the longest run?<\/h2>\n