u/ImpenetrableFox

I'm running Prague marathon this Sunday and aiming for a time of 3:50 in good conditions. Although the marathon starts at 8:00, the current weather prediction estimates Sundays temperature will peak at 26 degrees Celsius / 79 Fahrenheit. (I know the weather prediction can still change but let's pretend it stays like this).

At least when the marathon starts it will maybe still be something like 13C, but it might be 20 - 24C when I finish. How do you handle the heat in terms of pacing the race and how much should you adjust your time goal?