When in August are most 5K races held?
The busiest weekend in Wisconsin is August 21 and August 22, with 3 of them, 2 of those on Saturday, August 21. Every one of them is on a Saturday or a Sunday.
Race calendar · August 2027 · Wisconsin
5K Races in Wisconsin in August 2027
Every 5K in Wisconsin in August 2027, all 5 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
What the field actually runs
August 5K Races, By the Numbers
30:06Median finish time
17:36Median winning time
106Median field size
4August 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 26, 2026.
When in August
The August Race Weekends
5K races are not spread evenly across August. Here is how the calendar actually falls, weekend by weekend, which is the part worth knowing before you book a trip or plan a taper around one.
By the numbers
The Biggest Field
The largest field of any August 5K in Wisconsin, from the most recent published results.
Wisconsin 5K Races by City in August
The Next 5K Runs in August
5 total Sun, Aug 8, 20272027 Wolverine 5K Waterford, WIFrom $15Details Sat, Aug 14, 2027Run S'more 24 Nashotah, WIFrom $35Details Sat, Aug 21, 2027Summer Sizzler - Milwaukee Milwaukee, WIRegistration opens Oct 1From $33Details Sat, Aug 21, 2027Popsicle 5K/10K/Half - Milwaukee Glendale, WIRegistration opens Jun 9, 2027From $35Details Sun, Aug 22, 2027Wausau Marathon Wausau, WIRegistration opens Sep 28FreeDetails
Common Questions About Running an August 5K in Wisconsin
What is a good 5K time?
Across the 4 of these August 5K races with published results from past editions, the median finisher ran 30:06, and the median winning time was 17:36. So anything under 30:06 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 106 runners, across the 4 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 55:59.