Running Pace Calculator — Min/km, Finish Time & Pace Chart
Free running pace calculator for 5K, 10K, half marathon, and marathon. Get min/km or min/mile, your ...
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| Race | 2026 Changsha Marathon - Nov 22 |
|---|---|
| City | Changsha |
| Date | 2026-11-22 at 07:30 |
| Field Size | ~15,000 runners |
| Time Limit | 6 hours 15 min |
| Timezone | Asia/Shanghai |
| Official Site | Changsha Sports Bureau |
| Registration | Register · 200 CNY |
| Average Temperature | 12°C / 54°F |
|---|---|
| Humidity | 70% |
| Wind | 8 km/h |
| Rain Chance | 20% |
| Typical Conditions | Cool and damp with moderate humidity |
What to Prepare: Late 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.
Wind at 8 km/h can affect your marathon pace by 5-15 seconds per kilometer. Headwinds slow you down exponentially — a 20 km/h wind costs more than twice a 10 km/h wind.
Calculate your wind-adjusted pace →| 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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