Running Pace Calculator — Min/km, Finish Time & Pace Chart
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| Race | 2026 Changsha Marathon |
|---|---|
| City | Changsha |
| Date | 2026-11-15 at 07:00 |
| Field Size | ~18,000 runners |
| Time Limit | 6 hours 15 min |
| Cutoff pace | 8:53/km |
| Timezone | Asia/Shanghai |
| Official Site | Changsha Sports Bureau |
| Average Temperature | 12.1°C / 54°F |
|---|---|
| Humidity | 80% |
| Peak Wind | 14.4 km/h |
| Rain Chance | 39% |
| Typical Conditions | Cool and damp with moderate humidity |
What to Prepare: Mid-November in Changsha can feel damp and chilly — arm sleeves and light gloves are useful at the start. Humidity is moderate but the riverside sections can feel cooler. Hydrate consistently despite the cool weather.
Based on historical averages for race week. Use our Weather Score Calculator and What to Wear Guide for personalized advice.
Winds peaking around 14.4 km/h — the typical daily maximum for this date — can affect your pace by 5-15 seconds per kilometer in exposed stretches. Headwinds slow you down exponentially: a 20 km/h wind costs more than twice a 10 km/h wind.
Calculate your wind-adjusted pace →Based on 20 years of race-week weather (2005-2024), MERRA-2 reanalysis
| Cooler | Typical | Warmer | |
|---|---|---|---|
| Temperature | 7.5°C | 12.1°C | 16.9°C |
| Dew point | 1.6°C | 7.9°C | 13.7°C |
Data: NASA POWER (MERRA-2 reanalysis), NASA Langley Research Center
| Course Type | Riverside Urban Loop |
|---|---|
| Elevation Gain | 45m |
| Terrain | Road |
| Profile | Course runs along the Xiang River through Changsha's vibrant city center, passing Orange Island and historic Yuelu Mountain views. Mostly flat with gentle undulations along the riverbank. |
| Boston Qualifier | Yes — Check your BQ time |
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