THE JOURNAL
TRAINING, DATA & THE FOREST
Sports science, race-data deep-dives, and the story of how BEINA got built — from the PUFFERIZED days to a multi-event platform.
STRATHPUFFER · DATA · 17 Feb 2026
The Slush Puffer, and Other Stories from the Forest
Was 2026 really the slowest Puffer to date? Looking over 16 years of race data, we think it probably was.
SPORTS SCIENCE · 24 Apr 2026
Fit, but for what?
One month down a sports-science rabbit hole — and how it changed the way we track fitness, fatigue and form.
PRODUCT UPDATE · FROM THE PUFFERIZED DAYS · 28 May 2026
May Updates: Loads of new features, with a catch
A teaser of things to come — the month we built the relaunch that became BEINA.
PRODUCT UPDATE · FROM THE PUFFERIZED DAYS · 24 Apr 2026
April Updates: A Proper Fitness Model, a New Status Page, and In-Chat Reports
A proper two-dimensional fitness model, a redesigned status page, RPE feedback, and in-chat reports.
PRODUCT UPDATE · FROM THE PUFFERIZED DAYS · 30 Mar 2026
March Updates: Coach V5, Garmin Integration, Predictions for Everything
The Coach rebuilt from the ground up, Garmin officially in, and AI predictions for 13 events.
PRODUCT UPDATE · FROM THE PUFFERIZED DAYS · 18 Feb 2026
February Updates: Race Planning, Journalling, and Secondary Events
An improved race-planning interface, a journalling system that makes the Coach smarter over time, and support for events beyond the Puffer.
PRODUCT UPDATE · FROM THE PUFFERIZED DAYS · 26 Jan 2026
January Updates: Post-Puffer Analysis, 15 Years of Data, and More
Post-race analysis tools, 15 years of historic Strathpuffer data, and a memory upgrade for the Coach.