Uploading a whole 2 hour, 16 minute video forces replay users who want to watch a single event on mobile to lose more data than necessary because YouTube will preload a set video time in the future. So this happens each time you try to move the video ticker to another position as well (i.e. when guessing where the men's 800 is). Replay users also run the risk of seeing the end of a race before the beginning while repositioning the ticker.
Just break down the long video by events and put multiple videos in a playlist!