3. Run Long

To run farther, you’re going to have to actually run farther! Either increase your long run by 5 – 10 minutes or add 0.8 – 1.6 km (0.5 – 1 mile) each time . It might not sound like much but it begins to add up. When you get into a bigger volume of training for a half marathon or marathon, your long run should be roughly 30-50% of your total distance for the week. Do your long run at a slow and sustainable pace. Go slowly and just focus on covering the distance. Remember, speed follows endurance.