could be because of the weather, mood of the runner, sleep, or the food they ate that day
The variable is wearing the wrong kind of running shoes like boots
The most logical variables are probably stance and how good you warmup
The terrain, weather, if they are mentally prepared,
The terrain, weather, if they are mentally prepared,
wind,runningblocks,proctice,naturalability
The terrain, weather, if they are mentally prepared,
The terrain, weather, if they are mentally prepared,
wind,runningblocks,proctice,naturalability
wind,runningblocks,proctice,naturalability
height tailwinds or headwinds.
Yes. By Josh L
density
The answer depends on the distance for the race. A marathon runner could not maintain the speed attained by a sprint runner.