80/20 ENDURANCE BLOG

8020 Endurance Hero

Letters to the Coaches: Alignment of Power Zones and 80/20 Heart Rate

By Matt Fitzgerald | November 27, 2017

David, I am pushing through first weeks with Garmin + Stryd to track it. I noticed that my power zone…

8020 Endurance Hero

Letters to the Coaches: When and How to Test Zones

By Matt Fitzgerald | November 17, 2017

Dear David W, I’m going to buy your plan for the level 3 half marathon plan. I have a race…

8020 Endurance Hero

Letters to the Coaches: Trouble Staying in Zone 1 HR

By Matt Fitzgerald | November 8, 2017

Hi Guys, I am planning buying 80/20 program (not sure in 1/2 marathon or marathon) but I want to prepare…

8020 Endurance Hero

Letters to the Coaches: Two-a-Days

By Matt Fitzgerald | November 4, 2017

Hi David, I’ve recently purchased a 5k plan for trainingpeaks.com It’s the level 3 plan, so it contains some days…

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