Heatwave Half Marathon/5K/10K - Greater Chicago 2027
- Date
- Sunday, August 1, 2027
- Start time
- 8:00 AM start (Chicago)
- Location
- Greater Chicago, Illinois
- Entry fee
- From Free · goes up to $38 on Apr 28, 2027
- Included with entry
- Includes a shirt
- Fundraising
- Takes optional donations when you register
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Events and entry fees
| Event | Distance | When | Entry fee | Cap |
|---|---|---|---|---|
| 10K | 10K | Aug 1, 20278:00 AM | $34$38 after Apr 28, 2027 | – |
| 1 Mile | 1 Mile | Aug 1, 20278:00 AM | $22 | – |
| 5K | 5K | Aug 1, 20278:00 AM | $34$38 after Apr 28, 2027 | – |
| Half-Marathon | Half Marathon | Aug 1, 20278:00 AM | $56$62 after Feb 3, 2027 | – |
| Kids Dash | Kids | Aug 1, 20278:00 AM | $17 | – |
| Running Buddy Half Marathon | Half Marathon | Aug 1, 20278:00 AM | Free | – |
| Volunteer Then Run | – | Aug 1, 20278:00 AM | $17 | 5 |
| Virtual RaceVirtual | – | Aug 1, 20278:00 AM | $42 | – |
Entry fees exclude processing fees. Prices and dates come from the race's registration page and refresh nightly.
Race day planning
Entry fee schedule
- 10K and 5K: $34 until Apr 28, then $38 until Jun 8, then $42 until Jul 13, then $46 until Jul 31, then $50 until Aug 1.
- 1 Mile: $22 until Aug 1.
- Half-Marathon: $56 until Feb 3, then $62 until Apr 6, then $68 until Jun 8, then $74 until Jul 13, then $80 until Jul 30, then $90 until Aug 1.
- Kids Dash: $17 until Aug 1.
Online registration closes Aug 1, 2027, unless the race fills first.
How the price compares
At $56, entry is about the same as a typical half marathon in Illinois ($56).
What a typical finish looks like
A typical finisher at a half marathon in Greater Chicago runs 2:10:30, about 9:57 a mile, based on 4 races with published results. Women typically finish in 2:19:47 and men in 1:58:55.
Light and altitude
Sunrise on race morning is at about 5:43 AM, and the 10K starts at 8:00 AM. The start sits about 720 feet above sea level.
Fees exclude processing fees. Comparisons use current entry fees and published results from races nearby.
Start location and course
TBD, Greater Chicago, IL 60602
The pin marks the address the race lists, which is usually the start. The organizers have not shared a course map with us yet.
2026 results
All resultsHalf-Marathon
5K
10K
Aggregated from official results (J3 Timing) for Heatwave Half Marathon/5K/10K - Greater Chicago. Individual finisher names are not stored here.
How fast do you need to be at Heatwave Half Marathon/5K/10K - Greater Chicago?
At the 2026 Half-Marathon, the fastest tenth finished in 1:41:59 or better, the top quarter in 1:55:20, and half the field in 2:12:32; the last tenth came in after 2:48:21.
At the 2026 5K, the fastest tenth finished in 23:58 or better, the top quarter in 28:03, and half the field in 33:56; the last tenth came in after 53:26.
At the 2026 10K, the fastest tenth finished in 48:53 or better, the top quarter in 56:12, and half the field in 1:02:15; the last tenth came in after 1:27:21.
| Age | Women | Men |
|---|---|---|
| Under 20 | 1:55:11 | 1:39:25 |
| 20-29 | 1:52:38 | 1:30:54 |
| 30-39 | 1:48:09 | 1:35:16 |
| 40-49 | 1:48:44 | 1:42:15 |
| 50-59 | 2:17:36 | 1:52:30 |
| 60-69 | n/a | 1:48:40 |
Groups with fewer than five finishers are left out. Awards vary by race; check the race's rules.
What would my time get me?
Where a finish time would have placed in 2026.
How fast is it?
About average for Illinois half marathons
The fastest quarter of the 2026 half marathon field finished under 1:55:20, against 1:52:06 in a typical Illinois half marathon, so times here are about average.
- 5K: About average for Illinois 5Ks. The fastest quarter of the 2026 5K field finished under 28:03, against 28:26 in a typical Illinois 5K, so times here are about average.
- 10K: Slower than most Illinois 10Ks. The fastest quarter of the 2026 10K field finished under 56:12, against 53:35 in a typical Illinois 10K, so times here run 5 percent slower.
Compares the fastest quarter of each field, so walkers and first-timers do not skew it. It reflects the course and the field together: a flat course, cool weather, or a competitive crowd all make times faster.
Typical race-day weather
Around August 1 the day usually runs from 67°F at dawn to 82°F in the afternoon, with measurable rain on about 24% of days. Cold snaps dip to 62°F and hot years reach 90°F.
Based on 75 days within a week of the date over the last 5 years, from historical weather for the start area. Not a forecast.
Race details
- Where
- TBD, Greater Chicago, IL 60602Map
- Course
- Road
- Start elevation
- About 720 feet
- Included with entry
- Tank Top; T-Shirt
- Donations
- Accepted when you register
- Distances
- 1 Mile, 5K, 10K, Half Marathon, Kids
- Editions
- 2027 (Aug 1, 2027), 2026 (Aug 2, 2026)
Organize this race? Add details or a correction
Plan your race
Quick answers
- When is Heatwave Half Marathon/5K/10K - Greater Chicago?
- Sunday, August 1, 2027, starting at 8:00 AM.
- How much does it cost?
- Entry starts at Free before processing fees, and rises to $38 on Apr 28, 2027.
- When does registration close?
- Online registration closes Aug 1, 2027, unless the race fills first.
- Is the entry fee high for Illinois?
- At $56, entry is about the same as a typical half marathon in Illinois ($56).
- Do runners get a shirt or medal?
- Entry includes a shirt, according to the race's registration page. Check it for sizes and whether kids' races get the same.
- Can I donate to a cause when I register?
- Yes. The registration form offers an optional donation, usually for the charity or nonprofit the race supports. The race's own page names the cause.
- What distances can I run?
- 1 Mile, 5K, 10K, Half Marathon, Kids.
- How big is it, and how fast?
- In 2026, 254 runners finished the Half-Marathon; the median finish was 2:12:32 and the winner ran 1:19:40.
- Is it a fast course?
- The fastest quarter of the 2026 half marathon field finished under 1:55:20, against 1:52:06 in a typical Illinois half marathon, so times here are about average.
- Where does it start?
- TBD, Greater Chicago, IL 60602.
From the organizers
Join us for the Heatwave Half Marathon, 10K, & 5K!
A sun-soaked summer challenge that’s perfect for the whole family.
The fun includes –
Great Swag – designer shirt & custom medal
Chip-timing with live results and awards
Free photos
FREE ice cream at the finish to help you cool off
Plenty of hot fun in the summer sun!
Grab your friends and family—you won’t want to miss this one!
Can’t make the race? No problem! We offer a virtual race option where you can run anywhere, at any time, and still earn the fun swag!
Youth-based pricing is available: ages 12 & under are only $17!