Speed-Based Workouts for Ultramarathon Training – iRunFar

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

Run a virtual ultramarathon with Dave Proctor - Canadian Running Magazine

Endurance-Based Workouts for Ultramarathon Training – iRunFar

Relentless Forward Progress: A Guide to Running Ultramarathons by Bryon Powell

Training For Your First Ultra Over 50K - Trail Runner Magazine

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

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

iRunFar (@irunfar) • Instagram photos and videos

Speed-Based Workouts for Ultramarathon Training – iRunFar

Courtney Dauwalter: Ultra runner breaks Western States 100 course record by almost 80 minutes

Speed-Based Workouts for Ultramarathon Training – iRunFar

Training & Running in the Heat: Practical Strategies to Help Beat the Heat - Koach Jen

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The Sub 3:30 Marathon Experiment – Ridgeway Runner