When should I sign up for a June 10K?
As early as you can. 3 of these June 10K races already have a price increase on the calendar, and 4 are open for entry right now. Another 1 have published an opening date and have not opened yet.
Race calendar · June 2027 · Illinois
June 2027 10K Races in Illinois
Every 10K in Illinois in June 2027, all 5 of them, sorted by date. Dates, entry fees, finish-time stats from past results, and start-line maps.
5 10K races in June 2027
What the field actually runs
June 10K Races, By the Numbers
1:03:29Median finish time
35:56Median winning time
43Median field size
4June 10K 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 June
The June Race Weekends
10K races do not spread evenly across June. The busiest weekend is June 5 and June 6, with 2 of them.
By the numbers
The Biggest and Longest-Running
The June 10K races that stand out on the numbers: the biggest field, and the longest unbroken run of editions.
June 10K Races by City
Soonest 10K Races in June
5 total Sat, Jun 5, 2027Races for all Paces Charleston, ILRegistration opens Jan 13, 2027From $15Details Sat, Jun 5, 2027Oneness 10K Run and 5K Run/Walk 2027 Palatine, ILFrom $32Details Sat, Jun 12, 2027Waubonsee Foundation Trail Run Sugar Grove, ILFrom $30Details Sun, Jun 13, 2027Treat Trot Greater Chicago Greater Chicago, ILFrom $22Details Sat, Jun 19, 2027Run Juneteenth Day 5K/10K/13.1 CHICAGO/EVANSTON Chicago, ILFrom $30Register
Common Questions About Running a June 10K in Illinois
How much does a June 10K cost to enter?
The typical entry is $30, with paid entries running from $15 up to $31.5. Entry fees climb as race day gets closer, so the same race is usually cheapest the week it opens.
What is a good 10K time?
Across the 4 of these June 10K races with published results from past editions, the median finisher ran 1:03:29, and the median winning time was 35:56. So anything under 1:03:29 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 June 10K field?
The median one finished 43 runners, across the 4 of these June 10K 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 1:41:26.
10K Races in Other Months
May and July sit either side of June, which is where most people look next when a date does not fit.