Running & fitness

Big race results and records, new shoes and watches worth knowing about, and training advice backed by evidence.

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You're reading the brief from Sun, Oct 25.

Valencia produced half-marathon performances faster than the standing US and European records, but neither counts toward those records.

Running & fitness3 items

Elsewhere, a Garmin running-power guide and a treadmill app test highlight limits in interpreting wearable data.

Races & athletes

Valencia performances beat US and European record times but do not count

Yaseen Abdalla ran 59:12, faster than Conner Mantz’s 59:17 US record, but does not become the record holder. A Spanish runner’s 58:03 counts as a Spanish record, but not a European record; Andreas Almgren’s 58:06 remains the European mark.

Why it matters: The distinction matters when comparing race performances with officially recognized national and continental records.

Shoes & tech

Garmin running-power guide explains readings roughly 30% above Stryd

The guide reports that Garmin’s running-power readings are roughly 30% higher than Stryd’s because Garmin counts mechanical work. It also notes that Garmin’s wind input comes from a forecast and discusses two studies.

Why it matters: Runners switching between systems should not assume that power readings or training targets are directly interchangeable.

Shoes & tech

Klemy Treadmill app shows lower distance error in developer test

Klemy Treadmill takes distance from the treadmill belt. In the developer’s one-hour test, the watch alone over-read distance by 1.2 km, or 16%, compared with 1% for Klemy; this was not an independent test.

Why it matters: The app offers a potential alternative for indoor distance tracking, though the reported accuracy needs independent validation.

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Who and what it tracks

  • GarminCompany4
  • NikeCompany3
  • StravaCompany2
  • World AthleticsOrganization1
  • Abbott World Marathon MajorsOrganization1