Malcolm 100K/100M

Corrine Malcolm

Goal Race Distance

100-160 kilometers (60-100 miles)


Trails with significant vertical


In life and in ultrarunning you only get to step into the unknown so many times - one such step is making the jump to the 50-mile, 100-kilometer, or 100-mile race distance. We know better than most just how scary that leap of faith can be. Whether this is your first time stepping up to the 50-mile plus distance or you’re an experienced ultrarunner looking for a little extra direction, my program should help you get to the start line healthy and celebrate at the finish line. This training program is designed to work with your life, not against it, because let’s face it you are not a runner who “humans”, you are a human who happens to really like running. Our goal is to get you to the start line ready to face the unknown - and we’ll do that by building your training progressively from where you are at today working to help build fitness and then dial up the specificity for your race. 


This program is ideal for athletes who have at least 12 weeks to go until race day, or at a minimum, 8 weeks to go but are coming in with a good foundation of training. Think of this as me saving you the brain tax of figuring out what to do each day. Finally athletes that have the ability to run at least 4-5 days a week will find the program the most sustainable. 


Corrine Malcolm is a multitasker - a coach, athlete, physiologist, podcaster and science writer she approaches the sport of trail and ultrarunning from every possible angle. After studying exercise physiology with concentrations in human performance and environmental factors Corrine merged her love of science with her desire to help individuals dream up big scary goals and has been coaching endurance athletes ever since. With over a decade of experience coaching skiers, runners, cyclists and mountain athletes under her belt she’s working to take the knowledge she’s accumulated and make it more accessible to more athletes just like you. Her athletes have done everything from run their first ever trail race to complete the Triple Crown of 200-mile races, and everything in between. Not one to just talk the talk, Corrine has found herself in the top ten of races like Chuckanut 50km, Leadville 100-mile, Western States, UTMB’s TDS, Madeira Island Ultra Trail, Black Canyon 100km, Lake Sonoma 50-mile, and has the women’s supported FKT on the 171-mile Tahoe Rim Trail.