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👋🏻 Hey Reader!
Tuesday September 22 · Main edition
This is the week that generates the most anxiety in any marathon block. Today, the science of why cutting back works. Tomorrow, your exact calendar for Chicago.
And something new: today's article comes with a downloadable 21-day PDF to print and stick on the fridge.
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In this edition · 11 min
01 The science of tapering
02 The map of pro athletics
03 What happened this weekend
04 Gear Tech Scout
05 This week in Endurance Mindset
New format: numbered sections with reading times, so you can go straight to what interests you. Every story links to the full piece.
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New here? Welcome. Tuesdays bring the full edition with news; Wednesdays, the Chicago series (part 5 of 7 lands tomorrow); the rest of the week, training and physiology; and Saturdays we close out. Take what serves you — the archive holds the rest.
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The taper isn't the pause before the important work. It is the important work.
Ten days out, you cut volume just as the plan says, and instead of relief comes anxiety: I'm losing everything I built. It has a name —taper anxiety— and it's nearly universal.
The evidence says the opposite. A 2023 meta-analysis in endurance athletes found tapering consistently improves performance, with gains between 0.5% and 6% depending on the protocol. In a marathon, 2–3% is several minutes.
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↓
VOLUME
Drops 40–60%, stepwise
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=
INTENSITY
Stays. Fewer reps, same pace
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≈
FREQUENCY
Nearly the same. 6 days to 5, not 3
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Cut everything equally and that's when you do detrain. What you sacrifice is volume; intensity stays.
The interesting part is what happens inside while you cut back. Four processes run at once: hormonal balance recovering, glycogen topping up beyond its usual level, blood carrying oxygen more efficiently, and a nervous system that finally gets to rest. The article explains each one →
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📄 Downloadable PDF · 6 pages |
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The final 3 weeks before the marathon
Week by week, race week day by day, carb loading without the myths, what's normal to feel and what isn't, and a printable 21-day calendar with boxes to tick off every session. Works for any Sunday marathon.
DOWNLOAD THE PDF →
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02 THE MAP OF PRO ATHLETICS
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3 min |
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Diamond League, Athlos, Ultimate, World Road Champs: what is each one?
In two weeks there was a brand-new championship in Budapest, a women's series in London, and a World Championship on the streets of Copenhagen. If the elite calendar has become impossible to follow, it isn't you: it has never had this many formats at once. Here's the map.
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🏟️ ON THE TRACK |
Diamond League |
World Athletics' top one-day meeting series. Around fifteen stops between spring and September, with a final that crowns a champion in each event. The backbone of the season. |
Ultimate Championship |
New in 2026, in Budapest. Only the year's best, in seasons without a World Championship, with the biggest prize money in the sport. This is where Ingebrigtsen skipped the 1500 but won the 5000. |
Athlos |
A women-only series, born in New York in 2024. This year it reached London. Short, built-for-TV format with its own prize purse. |
World Championships |
The most prestigious title after the Olympics. Every two years, in odd years. The next one is 2027. |
🛣️ ON THE ROAD |
World Road Running Champs |
World Athletics, second edition in this format (Riga 2023, Copenhagen 2026). Mile, 5K and half marathon, with individual and team standings. Plus an open mass-participation race on the same course. |
World Marathon Majors |
The big seven: Tokyo, Boston, London, Sydney, Berlin, Chicago and New York. Elites and amateurs on the same start line. Berlin runs this Sunday the 27th; Chicago, on the 11th. |
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The trend that matters: the line between track and road is blurring. 1500 and 5000 champions racing 5K on asphalt, stadium milers running the road mile. For the everyday runner, the lesson is the one we saw this weekend: every surface has its own language, and even the best have to learn it. |
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🇩🇰 COPENHAGEN · WORLD ROAD CHAMPS
A 21-year-old Eritrean beats Ingebrigtsen in the final 100 meters
Ingebrigtsen took the lead with the finish in sight. Dawit Seare, African 5000 champion, answered in the closing stretch: 12:56 to 12:59, a national record for both. Seare then signed a pro contract with NAZ Elite in Flagstaff. Ingebrigtsen ended up flat on the asphalt, in the same city where he collapsed after his half marathon debut two years ago. Read the story →
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Half marathon M · Andreas Almgren 🇸🇪 58:06, European record. First non-African winner in 30 years.
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Half marathon W · Agnes Ngetich 🇰🇪 1:05:15, women-only world record, winning by 50 seconds. Team USA took team silver. |
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Mile · Robert Farken 🇩🇪 3:51.80 beats training partner Yared Nuguse · Agathe Guillemot 🇫🇷 4:22.74 |
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5K W · Likina Amebaw 🇪🇹 14:41, six days after winning the 5000 in Budapest |
What Copenhagen tells us about world distance running →
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🇬🇧 LONDON · ATHLOS
Keely Hodgkinson closed her season with 1:56.40 in the 800, a meet record by more than two seconds. Sha'Carri Richardson (10.80), Gabby Thomas (22.13) and Marileidy Paulino (48.73) also won. Hodgkinson's race also debuted a suit we cover in section 04.
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🇦🇷 BUENOS AIRES MARATHON
Kenya's Bethwel Kibet Chumba won in 2:08:28, with over 16,000 runners from 64 countries on the streets. Ignacio Erario took the Argentine title. Read the story →
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THE LEAD STORY
A suit with 3D-printed vortex generators
Nike spent six months building Hodgkinson a full-body suit with microstructures that, according to the brand, reduce drag. The principle is real —Formula 1 has used it for decades— but there's no independent data on how much it helps. The verdict: fascinating, and still unproven.
Read the PMP verdict →
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👟 Super shoe season
UTMB wraps up and the road wave begins. When $250 for plate and foam is worth it, and when it isn't. Read →
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⚡ Record foam, no plate
The Adizero Evo SL puts Adidas's race-day foam into a daily trainer. Who it's for, and how to introduce it without overloading your shins. Read →
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⌚ Coros adds full maps
Beta maps for the Pace 4, voice control and torque metrics. Useful for trail; on the road, a nice extra. Read →
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| WED 23 |
Chicago 5/7 · Your taper calendar, with dates |
| THU 24 |
Chicago for the out-of-town runner |
| FRI 25 |
The Chicago checklist: 30 items |
| SAT 26 |
The definitive half marathon guide |
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Chicago · Sunday October 11 · 7:20 am
19 DAYS
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How many days until your next race?
Reply with the number and the distance. If you're inside three weeks, I'll tell you where in the PDF you should be.
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Have a good week, and trust the work you've already done. See you tomorrow. |
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