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| Race | 2026 Prague Marathon - May 3 |
|---|---|
| City | Prague |
| Date | 2026-05-03 at 09:00 |
| Field Size | ~8,000 runners |
| Time Limit | 6 hours |
| Cutoff pace | 8:32/km |
| Course speed |
Fast courseSpeed index 0.92 — median of the last 4 winners' times against the global same-year median. Winner times track elite fields and prize money, so this reads the course as a proxy, not a pure measurement. |
| Timezone | Europe/Prague |
| Official Site | RunCzech |
| Average Temperature | 11.7°C / 53°F |
|---|---|
| Humidity | 74% |
| Wind | 19.4 km/h |
| Rain Chance | 42% |
| Typical Conditions | Cool spring weather with partly cloudy skies |
What to Prepare: Prague in May offers comfortable racing weather. The Old Town cobblestone sections demand shoes with good grip. Wind can funnel through narrow streets — draft in groups through exposed areas along the Vltava River.
Based on historical averages for race week. Use our Weather Score Calculator and What to Wear Guide for personalized advice.
Wind at 19.4 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 →Based on 20 years of race-week weather (2005-2024), MERRA-2 reanalysis
| Cooler | Typical | Warmer | |
|---|---|---|---|
| Temperature | 6.9°C | 11.7°C | 15.9°C |
| Dew point | 1.9°C | 7.1°C | 10.8°C |
Data: NASA POWER (MERRA-2 reanalysis), NASA Langley Research Center
| Course Type | Urban Loop |
|---|---|
| Elevation Gain | 50m |
| Terrain | Road |
| Profile | Scenic course winding through Prague's historic Old Town, across the Charles Bridge area, past Prague Castle, and along the Vltava River. Mix of cobblestone and paved surfaces with gentle undulations. One of Europe's most photogenic marathon routes. |
| Boston Qualifier | Yes — Check your BQ time |
| Year | Finishers | vs prev. |
|---|---|---|
| 2025 | 7,636 | — |
| 2026 | 9,066 | +18.7% |
Runners who crossed the line, not the registered field size.
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