For many runners, the hardest part of marathon or half marathon training comes just before race day. After months of building mileage and fitness, reducing training can feel uncomfortable. However, sports science consistently shows that a well-planned taper allows the body to recover fully while maintaining fitness, giving runners the best possible chance of performing well.

Tapering involves gradually reducing training volume while keeping some faster running in the schedule. This combination allows muscles to repair, glycogen stores to replenish and accumulated fatigue to disappear without sacrificing running efficiency. Research suggests that an effective taper can improve endurance performance by around two to three percent, making it one of the most valuable phases of any training plan.

The length of a taper depends on the target distance. Marathon runners generally benefit from reducing training over two to three weeks, while a half marathon taper usually lasts between seven and fourteen days. Weekly mileage should reduce progressively, but short race pace efforts, strides or controlled intervals help maintain rhythm, confidence and leg speed without creating additional fatigue.

Long runs should be completed well before race day, with the final significant marathon long run taking place around two to three weeks before the event. During the taper, strength work should become lighter and focus on mobility, stability and activation rather than heavy lifting. Consistent carbohydrate intake, good hydration, adequate protein and quality sleep all play an important role in ensuring the body reaches the start line fully recovered.

One of the biggest challenges during a taper is trusting the process. Feeling fresh can tempt runners into adding extra miles or squeezing in one final hard workout, but this often adds unnecessary fatigue rather than extra fitness. Equally, race week is not the time to experiment with new shoes, nutrition or equipment. Confidence comes from sticking with the routine that has worked throughout training.

A practical approach during the final week is to keep easy runs relaxed, prepare race kit early, confirm travel arrangements and focus on staying healthy rather than chasing fitness. Small details such as staying hydrated, maintaining normal eating habits and getting consistent sleep often make a greater difference than any additional training session.

Whether you're preparing for your first half marathon or targeting a marathon personal best, a successful taper allows months of training to come together at exactly the right time. By arriving at the start line rested, healthy and mentally prepared, runners give themselves the best opportunity to enjoy race day and perform to their full potential

Image courtesy GSi Events.