How to run a 5K PR


Newsletter #951: Monday, 26th October 2026


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Hey runners, in today’s newsletter, Valencia produced a record that technically isn’t one.

Rodrigue Kwizera won the Valencia Half three seconds inside the European record, though it won’t count because of a World Athletics rule. Yaseen Abdalla hit the same wall, going five seconds under Conner Mantz’s U.S. record but competing for Sudan.

Attention now turns to New York on November 1, where Mantz races his first marathon in over a year and Andreas Almgren makes a debut his 58:06 half suggests could be special.

And as always, we round things out with the practical stuff: how to cross-train properly, what cardiac drift means for your training, and how to finally nail that 5K PR.

Jessy Carveth

Senior News Editor, Marathon Handbook


​Full Results: 2026 Valencia Half Marathon​

Rodrigue Kwizera led a Spanish one-two in a national record, and Sheila Chepkirui beat Diana Wanza by one second in a world-leading time.


​Blanka Dörfel Runs the Fastest Marathon Debut by a German Woman in Frankfurt​

The 24-year-old ran without a watch to finish second behind Zeineba Yimer, and Amanal Petros was runner-up to Jirata Dinki in the men's race.


​Elhousine Elazzaoui Wins a Record Third Golden Trail World Series Title​

The Moroccan won the grand finale at Muju Trail in South Korea from third in the standings and took the overall crown by just two points over Patrick Kipngeno.


​Iceland’s Andrea Kolbeinsdóttir Wins the Golden Trail World Series Grand Finale​

The Salomon runner, who qualified for South Korea through a national series race in Australia, won Saturday's Muju Trail by almost six minutes. Mădălina Florea finished second and kept her overall title.


​Cross Training For Runners: Best Workouts + The Specificity Truth​

How to use cross-training to get faster, stay injury-free, and build a stronger running foundation.


​Cardiac Drift: What It Is + How to Manage It​

Why your heart rate rises even when your effort stays the same.


​5K PR: How to Set a Personal Record at 5K​

Nail your strategy, sharpen your mindset, and avoid common mistakes with these expert-approved tips for your fastest 5K yet.


​American-Born Yaseen Abdalla Runs Faster Than the U.S. Half-Marathon Record ...for Sudan​

The 25-year-old ran sub-60 in Valencia on Sunday, five seconds under Conner Mantz's American record. USATF rules keep it off the books because Abdalla competes internationally for his parents' home country.


​Rodrigue Kwizera Breaks the Spanish Record to Win the Valencia Half Marathon​

He was three seconds under Andreas Almgren's European record but will not count as one, because World Athletics has not yet approved his switch from Burundi. Sheila Chepkirui won the women's race in a world-leading time.


​2026 New York City Marathon Elite Field: Conner Mantz​

The American record holder runs his first marathon in more than a year on Nov. 1, after two sacral stress fractures kept him off the start line in Boston this spring.


​The Numbers Behind Andreas Almgren’s Marathon Debut in New York​

The world half-marathon champion's 58:06 predicts a marathon of around 2:01. Nobody has ever run under 2:04:58 in New York, and its elite race hasn't used pacemakers since 2007.


​Hot Takes & Half-Baked Ideas: Live from Second City Toronto​

The Marathon Handbook Podcast heads to Second City in Toronto for a live show during Toronto Waterfront Marathon weekend. Michael Doyle, Alex Cyr, Katelyn Tocci and Jessy Carveth all have fall races coming up: Jessy at the Toronto Waterfront Half, Alex at the Valencia Half, Michael at the Philadelphia Marathon and Katelyn at CIM.


Quick Sprints:

Looking for an online running coach? Whatever your goals, train with our head coach, Coach Katelyn. Learn more about her online coaching.


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