Well, the bottom line is, they all of course are asking the same question.
In 1) you are placing yourself in the past, so that the race is currently taking place i.e. in the present, as it were, hence the present tense.
In 2 and 3 you are remaining in the here and now, thus you are viewing the actions that occurred in the past, from your current standpoint in the present.
I'm certain it's no different in Russian.