When in August are most 5K races held?
The busiest weekend in Michigan is August 21 and August 22, with 4 5K races on those two days, and the single busiest day is Saturday, August 21 with 3. Every one of them is on a Saturday or a Sunday.
Race calendar · August 2027 · Michigan
August 2027 5K Races in Michigan
Every 5K in Michigan in August 2027, all 9 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
9 5K races in August 2027
What the field actually runs
August 5K Races, By the Numbers
36:39Median finish time
17:13Median winning time
103Median field size
6August 5K races with published results
How we calculate these stats: RunSesh calculates these figures from the most recent published results of past editions, sourced from RunSignup. We show aggregates only: field size, winning and median times, and the cutoff. We never publish individual finisher tables. Last updated Sep 22, 2026.
When in August
The August Race Weekends
5K races do not spread evenly across August. The busiest weekend is August 21 and August 22, with 4 of them.
By the numbers
The Biggest and Longest-Running
The August 5K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
August 5K Races by City
Soonest 5K Races in August
9 total Sat, Aug 7, 2027Green Lake 5K run and walk Caledonia, MIFrom $25Details Sat, Aug 7, 2027Blueberry Dash 5K Frankfort, MIFrom $40Details Sat, Aug 14, 20272026 Lake Antoine Classic Iron Mountain, MIRegistration opens Feb 14, 2027From $25Details Sun, Aug 15, 2027Summer Sizzler- Grand Rapids Grand Rapids, MIRegistration opens Oct 1From $22Details Sat, Aug 21, 2027West Michigan Latino Health 5K Walk/Run Grand Rapids, MIRegistration opens Jan 14, 2027From $30Details Sat, Aug 21, 2027Summer Sizzler- Ann Arbor Ann Arbor, MIRegistration opens Oct 1From $22Details Sat, Aug 21, 2027Hudsonville Community Fair 5K Hudsonville, MIRegistration opens Apr 30, 2027From $35Details Sun, Aug 22, 2027Summer Sizzler - Lansing Lansing, MIRegistration opens Oct 1From $22Details Sat, Aug 28, 2027Don't Engage 5K Walk and Run Lathrup Village, MIFrom $35Details
Common Questions About Running an August 5K in Michigan
When should I sign up for an August 5K?
As early as you can. 5 of these August 5K races already have a price increase on the calendar, and 3 are open for entry right now. Another 6 have published an opening date and have not opened yet.
How much does an August 5K cost to enter?
The typical entry is $25, with paid entries running from $22 up to $40. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
What is a good 5K time?
Across the 6 of these August 5K races with published results from past editions, the median finisher ran 36:39, and the median winning time was 17:13. So anything under 36:39 puts you in the faster half of a typical field. That is the middle of these RunSignup fields, walkers and charity entrants included, not a national average.
How big is a typical August 5K field?
The median one finished 103 runners, across the 6 of these August 5K races with published results from past editions. Most are far smaller than the big-city events people picture, which means less crowding at the start and a friendlier field, with a last recorded finisher at 1:01:27.
Are there trail 5K races in Michigan in August?
Yes, one race around Michigan gets you off the pavement: 1 mixes road and trail. Surfaces are not always published, so it is worth checking a specific race before you register.
5K Races in Other Months
July and September sit either side of August, which is where most people look next when a date does not fit.