When in September are most 5K races held?
The busiest weekend in Wisconsin is September 18 and September 19, with 4 of them, 3 of those on Saturday, September 18. One more falls on a weekday, which is worth knowing if you are traveling for it.
Race calendar · September 2027 · Wisconsin
5K Races in Wisconsin in September 2027
Every 5K in Wisconsin in September 2027, all 8 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
What the field actually runs
September 5K Races, By the Numbers
30:39Median finish time
18:16Median winning time
85Median field size
3September 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 Nov 12, 2026.
When in September
The September Race Weekends
5K races are not spread evenly across September. 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 September 5K in Wisconsin, from the most recent published results.
Wisconsin 5K Races by City in September
All 5K Runs in Wisconsin in September
8 total Sat, Sep 4, 2027Cow Chip Classic Run/Walk Prairie Du Sac, WIRegistration opens Feb 4, 2027From $30Details Fri, Sep 10, 2027St. Robert School Pretzel Run Milwaukee, WIRegistration opens Jul 18, 2027From $40Details Sat, Sep 18, 2027Community First Fox Cities Marathon Menasha, WIRegistration opens Jan 14, 2027From $25Details Sat, Sep 18, 2027Feed My Starving Children Green Bay, WIRegistration opens Dec 1From $30Details Sat, Sep 18, 2027Elktoberfest Wine & Beer Run 5K Elkhart Lake, WIFrom $25Details Sun, Sep 19, 2027KIEL RAIDER NATION 5K RUN / 2 MILE RUN - WALK Kiel, WIFrom $25Details Sat, Sep 25, 2027Golden Harvest Half Marathon & 5K/10K - Milwaukee Milwaukee, WIFrom $33Details Sun, Sep 26, 2027Talk Pirate to Me 5K/10K/Half - Milwaukee Glendale, WIRegistration opens Jun 18, 2027From $40Details
Common Questions About Running a September 5K in Wisconsin
What is a good 5K time?
Across the 3 of these September 5K races with published results from past editions, the median finisher ran 30:39, and the median winning time was 18:16. So anything under 30:39 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 September 5K field?
The median one finished 85 runners, across the 3 of these September 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 48:49.