Boston Marathon 2017
Boston · April 17, 2017 · 26,401 finishers
- Where the field cracked
- 30 km
- Negative splits
- 3.0%
- Median finish
- 3:51:38
- Finishers
- 26,401
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 | 5.5% |
| 3:00-3:30 | 8.9% |
| 3:30-4:00 | 11.9% |
| 4:00-4:30 | 16.2% |
| 4:30-5:00 | 18.3% |
| >5:00 | 19.0% |
Race conditions
- Temp.
- 16.3°C – 21.9°C
- Humidity at peak
- 28%
- Wind
- 6 km/h – 25 km/h
Temperature ran from 16.3°C to 21.9°C. At its hottest, the air was at 28% humidity.
Hour by hour
| Hour | Temp. | Humidity | Wind |
|---|---|---|---|
| 09:00 | 20.4°C | 61% | 18 km/h |
| 10:00 | 21.0°C | 46% | 22 km/h |
| 11:00 | 21.4°C | 41% | 23 km/h |
| 12:00 | 21.7°C | 32% | 25 km/h |
| 13:00 | 21.9°C | 28% | 24 km/h |
| 14:00 | 21.1°C | 32% | 25 km/h |
| 15:00 | 20.3°C | 37% | 22 km/h |
| 16:00 | 19.7°C | 39% | 20 km/h |
| 17:00 | 19.0°C | 41% | 18 km/h |
| 18:00 | 18.2°C | 46% | 11 km/h |
| 19:00 | 16.3°C | 69% | 6 km/h |
Hourly data from open-meteo. Peak wind 25 km/h. Times in the race's own zone.