The Micro: Breaking 4
The Micro: Breaking 4 is a running race on October 18, 2026 in Walker, MI.
- Date
- October 18, 2026 (87 days to go)
- Location
- 1415 Maynard Ave SW, Walker, MI
- Sport
- Running
From the Organizer
A Race Series Designed by Runners, for Runners
In 2021 we created the McKirdy Micro Marathon series to help athletes run a personal best and qualify for the Boston Marathon or beyond. At the time, we were just coming out of the COVID-19 pandemic where opportunities to run fast times were limited and motivation to continue training was difficult with no races on the calendar.
In 2023, we took the same concept and applied it at an elite level, hosting a race for athletes targeting the USATF Olympic Trials Qualifying Standard (OTQ) or the Olympic Standard. Many “on the cusp” athletes find they have limited options for races that are both fast and will provide the support they need to run their best.
Athletes from all over the world came to participate in a small localized race with the potential for massive impact. When the day was done:
48 athletes ran under the 2:18:00/2:37:00 OTQ Standard
More OTQs came from our race than any other race in 2023
Our race produced 2 Olympians
69% of the finishing athletes ran a personal best
85% of the finishing athletes ran their second fastest lifetime marathon
Moving forward, we are expanding the series to bring the McKirdy Micro race experience to athletes of all abilities over multiple distances! We hope you’ll come run your fastest marathon with us.
Events
Weather
Typical Conditions
It's too far out for a forecast, so here's what weather on this date is normally like in the area. A race day forecast will replace this as race week approaches.
Typical High
60°
Typical Low
39°
Chance of Rain
47%
Based on US Climate Normals data from E Grand Rapids, 7 mi from the venue.
Host City
About Walker, MI
Nearest Airport
GRR
Gerald R. Ford International Airport · 12 mi
Time Zone
Eastern Time
From Endurance Grid
Line up lodging and travel early to lock in your race weekend.
Race Location
Your Next Start Line
What Are You
Waiting For?
Every finish line starts with a single decision. Claim your spot at The Micro: Breaking 4, put it on the calendar, and turn “someday” into a start date.
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From Endurance Grid
About This Sport
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
Running
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Coming Up
More Running races near Walker, MI
WMAAA Banh Mi 5K Run & Walk
1 Mile · 5K · From $35 · 1415 Maynard Avenue SW
Less than a mile away
PAWS in the Park
1 Mile · 5K · From $45 · 1415 Maynard Ave SW
Less than a mile away
Millennium Meadows Marathon
10K · Half Marathon · Marathon · From $50 · 1400 Maynard SW
Less than a mile away
Last Chance BQ.2 - Grand Rapids
Marathon · From $130 · 1400 Maynard SW
Less than a mile away
Plan your trip
Make it a Racecation
Coming from out of town? There's more to Walker than race day. We'll help you line up nearby lodging, flights, a rental car, and things to do so you can make the most of your racecation.
Plan your trip to WalkerFrequently Asked Questions (FAQs)
What is The Micro: Breaking 4?+
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The Micro: Breaking 4
Oct 18, 2026