HeyJaredJustin Daerr (all of it)
Writing on performance in and out of sport. Coach and mental performance consultant. Former professional triathlete.
- Indexed issues, last 90 days
- 6
- Latest publication
- Sep 15, 2026
- Audience
- Checking…
- Earliest in this view
- Jul 16, 2026
Latest issues
When It Doesn’t Work Out (opens the original)
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<img alt="" class="sizing-normal" height="971" src="https://substackcdn.com/image/fetch/$s_!3BFX!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2Ff5c48dfe-60dc-4fbc-b62e-7a3248cfd334_3840x2561.j
MSMRL Podcast with Alan Couzens & Iñaki de la Parra (opens the original)
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The Science of Maximal Athletic Devel
The Power of Constraints (opens the original)
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<img alt="" class="sizing-normal" height="1941" src="https://substackcdn.com/image/fetch/$s_!tXcO!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F27ee3be0-4a74-426d-8d05-fcf03fe6acbc_1536x2048.
Troubleshooting on the Fly (opens the original)
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<img alt="" class="sizing-normal" height="1278" src="https://substackcdn.com/image/fetch/$s_!NtEv!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F5257930f-2c9d-4ea2-9e92-129a1afd3438_1369x1278.
Things That Made Me Think This Summer (opens the original)
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<img alt="" class="sizing-normal" height="1092" src="https://substackcdn.com/image/fetch/$s_!1qv7!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F1412ff36-8c33-4751-85ba-e6ed8bb0f9e6_2016x1512.
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