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Ellie Greenwood’s favourite trail workout

Trail and ultrarunning champion Ellie Greenwood shares her favourite workout for getting faster and stronger on the trails

Legendary trail runner, ultrarunner, and coach Ellie Greenwood is no stranger to grit and hard work. Greenwood has run over 65 marathons and ultras including two Western States 100-mile wins (current course record), two IAU World 100k championship wins, and a win at the world’s oldest and largest ultramarathon, South Africa’s Comrades marathon (90k). The trail and ultrarunning champion shares her favourite workout for getting faster and stronger on the trails.

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Ellie Greenwood

Greenwood’s all-time favourite trail workout emphasizes sustained speed while providing opportunities to practise technical skills on the trail. The workout may have contributed to her setting the tough to break Western States 100 course record in 2012. 

Since the intervals are long, the workout requires pacing within each interval. Even though there is a full rest in the middle, you’re running hard for 10K. This can be great practice for longer tempo runs that are further than 5K.

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Get started

Set the scene by picking a route that includes non-technical rolling trails or rolling road. Greenwood prefers doing this workout on hilly terrain, which can often end up as race-specific for many trail races. She recommends not doing this workout on mountainous or extremely technical trail terrain.

What it is

The workout includes 15-30 minutes of an easy warm-up run, then proceeds to running 2 x 5K intervals with approximately 10 minutes of full rest.

Ellie Greenwood
Ellie Greenwood at the Buckin’ Hell 2017, part of the Coast Mountain Trail Series. Photo: Scott Robarts

How to do it

After a 15-30 minutes easy warm-up run, begin the first 5K interval at a sustained hard effort. Fully recover for at least 10 minutes before beginning the next 5K interval. The resting interval can be a walk or slow jog. Greenwood tells the athletes she coaches to avoid looking at their watch during the interval. Focus on your sustained effort and ignore the pace of each kilometre split. When running on uneven terrain in the trails, effort matters more than pace.


Modification station

15 minutes easy warm-up
2 x 3K or 2 x 4K with 10 minutes of full rest (same as above)
This modification can be for newer runners, those training for a shorter trail race, or runners gradually working their way up to the full 5K repeat. It can also be considered a modified tempo run.

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