Build aerobic endurance with sustained marathon pace efforts
Long intervals are extended efforts at marathon race pace, designed to build aerobic endurance and fat metabolism. These workouts bridge the gap between easy runs and tempo efforts.
Running at marathon pace trains your body to efficiently burn fat for fuel while maintaining a solid pace. This is essential for marathon success and builds a strong aerobic foundation.
Typically 10-20 minutes long with short recovery periods, long intervals teach your body to sustain marathon pace comfortably.
Long intervals target aerobic endurance and metabolic efficiency:
• Aerobic endurance - Build capacity for sustained moderate efforts
• Fat oxidation - Improve fat burning at marathon pace
• Glycogen sparing - Use less carbohydrate at race pace
• Mental preparation - Build confidence at marathon pace
• Marathon preparation - Direct training for marathon racing
• Aerobic base - Strong foundation for all training
• Running economy - More efficient at marathon pace
Long intervals should feel comfortable and sustainable:
• Recent race time: Current marathon race pace
• Effort: Comfortable, conversational in short sentences
• RPE: 6-7 out of 10 - "moderate" effort
• Heart rate: 80-85% of maximum HR
Start with 10-15 minute warmup at easy pace.
Intervals should feel comfortable and sustainable throughout.
Recovery jogs are brief - just enough to settle breathing.
Cool down with 10 minutes easy running.
Long intervals should feel strong but sustainable:
• Throughout: Controlled, rhythmic breathing
• Effort: "Comfortably hard" - could maintain for hours
• Form: Relaxed, efficient stride
Easy pace building gradually to marathon pace feel.
Comfortable sustained efforts at marathon pace. 3-4 repetitions with 2-3 minutes recovery.
Easy jogging to finish the workout.
Simple preparation for moderate effort:
• Easy pace: Gradually build to marathon pace feel
• Easy jogging to finish
Running too fast - These should feel comfortable, not hard.
Skipping workouts - Consistency is key for aerobic development.
Not fueling properly - Practice race nutrition on longer intervals.
Introduction to marathon pace
10 minutes warmup
3 x 8 minutes at MP with 2 minutes recovery
10 minutes cooldown
Building marathon endurance
15 minutes warmup
3 x 12 minutes at MP with 2 minutes recovery
10 minutes cooldown
Marathon-specific endurance
15 minutes warmup
3 x 20 minutes at MP with 2 minutes recovery
10 minutes cooldown
Practice your marathon race nutrition during these workouts.
Run on marathon race terrain when possible.
Focus on running economy - relaxed, efficient form.
Use these to build confidence at goal marathon pace.
Browse our workout library to find structured long interval workouts for marathon preparation.
Browse Long Run WorkoutsThese workouts are for educational purposes only. Always consult with your personal coach or qualified training professional before starting any new training program. They can provide personalized guidance based on your fitness level, goals, and individual needs.
