Boston Marathon 2026
Boston · April 20, 2026 · 28,918 finishers
- Where the field cracked
- 30 km
- Negative splits
- 12.8%
- Median finish
- 3:28:34
- Finishers
- 28,918
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 | 2.7% |
| 3:00-3:30 | 4.2% |
| 3:30-4:00 | 5.6% |
| 4:00-4:30 | 9.4% |
| 4:30-5:00 | 12.0% |
| >5:00 | 16.2% |
Race conditions
- Temp.
- 6.4°C – 10.0°C
- Humidity at peak
- 32%
- Wind
- 12 km/h – 15 km/h
Temperature ran from 6.4°C to 10.0°C. At its hottest, the air was at 32% humidity.
Hour by hour
| Hour | Temp. | Humidity | Wind |
|---|---|---|---|
| 09:00 | 6.4°C | 64% | 12 km/h |
| 10:00 | 7.8°C | 50% | 14 km/h |
| 11:00 | 8.4°C | 48% | 15 km/h |
| 12:00 | 9.2°C | 48% | 14 km/h |
| 13:00 | 9.9°C | 45% | 14 km/h |
| 14:00 | 8.7°C | 42% | 14 km/h |
| 15:00 | 9.8°C | 38% | 13 km/h |
| 16:00 | 10.0°C | 32% | 12 km/h |
| 17:00 | 9.3°C | 35% | 14 km/h |
| 18:00 | 8.4°C | 38% | 14 km/h |
Hourly data from open-meteo. Peak wind 15 km/h. Times in the race's own zone.