Chicago Marathon 2026
Chicago · October 11, 2026 · 54,497 finishers
- Where the field cracked
- 30 km
- Negative splits
- 8.4%
- Median finish
- 4:22:35
- Finishers
- 54,497
Largest drop in pace between two mats.
Share of the field that ran the second half faster.
Fade, by finish time
Fade tracks ability, so a single field-wide median would compare you against people running a different race. Each band below is the median for runners who finished near your time.
| Band | Median fade |
|---|---|
| <3:00 | 3.4% |
| 3:00-3:30 | 5.2% |
| 3:30-4:00 | 7.0% |
| 4:00-4:30 | 11.0% |
| 4:30-5:00 | 13.7% |
| >5:00 | 18.0% |
Race conditions
- Temp.
- 13.6°C – 22.1°C
- Humidity at peak
- 66%
- Wind
- 2 km/h – 8 km/h
Temperature ran from 13.6°C to 22.1°C. At its hottest, the air was at 66% humidity.
Hour by hour
| Hour | Temp. | Humidity | Wind |
|---|---|---|---|
| 07:00 | 13.6°C | 93% | 2 km/h |
| 08:00 | 15.3°C | 91% | 6 km/h |
| 09:00 | 16.5°C | 85% | 5 km/h |
| 10:00 | 17.6°C | 80% | 6 km/h |
| 11:00 | 18.4°C | 78% | 4 km/h |
| 12:00 | 19.6°C | 76% | 3 km/h |
| 13:00 | 21.9°C | 65% | 2 km/h |
| 14:00 | 22.1°C | 66% | 5 km/h |
| 15:00 | 22.1°C | 68% | 7 km/h |
| 16:00 | 21.7°C | 73% | 7 km/h |
| 17:00 | 20.8°C | 79% | 8 km/h |
| 18:00 | 19.9°C | 83% | 7 km/h |
Hourly data from open-meteo. Peak wind 8 km/h. Times in the race's own zone.