McKirdy Micro: Breaking 4:00

OCT
18
2026
A marathon in Walker, Michigan on October 18, 2026, part of the McKirdy Micro series known for producing Olympic Trials qualifiers and two Olympians. Organizers plan to expand the series to multiple distances.
Sun 18 Oct 2026
26 miles

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The Micro: Breaking 4

The Micro: Breaking 4 is a marathon event in Walker, Michigan, scheduled for October 18, 2026. The event is part of the McKirdy Micro series and features the standard marathon distance of 26.2 Miles. The listed venue address is 1415 Maynard Ave SW, Walker, MI 49534.

The McKirdy Micro series began in 2021 to provide focused opportunities for athletes seeking fast marathon times. In 2023 the series hosted an elite-level race aimed at athletes pursuing the USATF Olympic Trials qualifying standards and the Olympic Standard. That race produced measurable outcomes: 48 athletes ran under the 2:18:00 / 2:37:00 OTQ standard; the organizers report that more OTQs came from their race than from any other race in 2023; two athletes from the race became Olympians; 69% of finishers ran a personal best; 85% recorded their second fastest lifetime marathon.

Organizers plan to expand the McKirdy Micro series to include multiple distances and to bring the Micro race experience to a wider field of athletes. The event is presented as part of that expanding series and reflects the series focus on creating races that target fast times and qualifying standards. Visit the organization's website for the most recent information.

26 mi
The Micro: Breaking 4
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