This 8-week half-marathon 2.1 intermediate training plan prepares for a HM in under 1:45 hours with 5 running days/week. Training starts at 32 miles/week and peaks at 35 miles/week. EFFECTIVE RUNNING WORKOUTS Become a faster runner by developing your VO2max, lactate threshold, running economy, and fatigue resistance at race pace with science-based, purposeful workouts. Or simply put, enhance both speed and endurance. BALANCED TRAINING WEEKS Enjoy your training week with the proven 80/20 ...