Speed-Based Workouts for Ultramarathon Training – iRunFar

Why and how to use speed-based workouts in your ultramarathon training.

Should ultra runners do speed sessions? Improving your ultra running, speed running training

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UltraRunning Magazine Jan/Feb 2014 by UltraRunning Magazine - Issuu

Ultrarunning History - Today, Charlie Lawrence, of Boulder Colorado, broke the 50-mile world record with 4:48:21 (to be ratified) at the Tunnel Hill 50 Mile in Vienna, Illinois. The previous record of