Thomas Datwyler is a Wisconsin-based accounting professional and founder of 9Seven Consulting, where he provides financial accounting and campaign compliance services to a wide range of clients. Alongside his professional work, Thomas Datwyler is an experienced long-distance runner who regularly competes in 5Ks, 10Ks, half marathons, and marathons. He has completed all six World Marathon Majors, run the Boston Marathon three times, and achieved top placements in competitive races. His disciplined approach to training and performance offers practical insight into marathon preparation, including strategies to prevent overtraining and maintain consistency throughout demanding training cycles.
How Runners Can Avoid Overtraining During Marathon Season
Marathon training requires consistent effort, careful progression, and sustained focus over several months. While inadequate preparation can compromise performance, excessive training presents its own risks. Overtraining is a common issue during marathon season and can lead to injury, fatigue, reduced performance, and burnout. Avoiding it requires a balanced approach that emphasizes structured training and recovery time.
A well-designed training plan provides the foundation for avoiding overtraining. Structured programs typically incorporate gradual increases in mileage and intensity, along with scheduled rest days. Following the plan as written helps ensure that stress is applied progressively, allowing the body to adapt. Runners may feel tempted to add extra mileage, worrying that they are not doing enough. However, adding “empty miles” or straying from the program can increase fatigue without improving fitness. Keeping each session purposeful and aligned with overall goals supports steady development while limiting unnecessary strain.
Equally important is respecting rest and recovery. Improvement does not occur solely during workouts; it happens when the body repairs and rebuilds afterward. Adequate sleep, proper hydration, balanced nutrition, stretching, and foam rolling all contribute to recovery. When recovery is neglected, fatigue accumulates and the risk of injury increases. Rest days should be treated as an essential component of training rather than an optional break. Some guidance recommends scheduling at least two rest days per week to allow the body sufficient time to adapt.
Listening to the body’s signals is a critical safeguard. Muscle soreness is expected during marathon preparation, but prolonged soreness that intensifies or localizes to a specific joint or muscle group may indicate an overuse injury. Persistent fatigue throughout the day, rather than temporary tiredness after a long run, can also signal excessive training stress. Changes in sleep patterns, such as difficulty falling or staying asleep, may reflect disruption to the body’s normal rhythms. Monitoring resting heart rate can provide additional insight. For adults, a typical resting heart rate ranges from 60 to 100 beats per minute. An unexplained increase at rest or a higher-than-usual heart rate early in runs may indicate accumulated stress.
Mental and emotional changes should not be overlooked. Overtraining can lead to discouragement, reduced motivation, or even dread associated with daily workouts. Losing enjoyment in training, missing personal or professional commitments to fit in additional runs, or training more than once a day without adequate recovery may all suggest imbalance. In some cases, runners attempt to compensate for underperformance by training harder, which can further reduce results and increase demotivation.
Cross-training can help reduce repetitive stress on the same muscle groups and joints. Low-impact activities such as swimming, cycling, or yoga provide cardiovascular benefits while giving running-specific structures time to recover. Proper nutrition also plays a preventive role. A balanced diet that includes protein, complex carbohydrates, and healthy fats supports muscle repair and overall resilience. Recovery strategies may extend to footwear choices designed to reduce stress on the feet and joints during non-running periods.
If signs of overtraining appear, reducing or temporarily stopping training may be necessary. Allowing up to a week of complete rest does not typically result in loss of fitness and can give both body and mind time to recover. Reviewing training goals and making adjustments can help restore balance and ensure readiness for race day.
Ultimately, marathon preparation requires more than accumulating miles. By adhering to a structured program, prioritizing recovery, monitoring warning signs, and maintaining perspective, runners can reduce the risk of overtraining and arrive at the starting line prepared rather than depleted.
About Thomas Datwyler
Thomas Datwyler is a Wisconsin-based accounting professional and founder of 9Seven Consulting, where he specializes in financial accounting and campaign compliance. With over a decade of experience, he has managed FEC and state filings for hundreds of clients while focusing on efficient, technology-driven processes. Outside of his professional work, Thomas Datwyler is an accomplished long-distance runner who has completed the six World Marathon Majors, run the Boston Marathon three times, and competes regularly with local running and triathlon clubs.
Angela Spearman is a journalist at EzineMark who enjoys writing about the latest trending technology and business news.

