Run in lane 1 if you have the choice. This would only matter in long distance races. Running in lane 1 allows you to put in less effort to get around the track because every next lane to the outside of the first is almost 3 meters longer and this would matter in the long run. If somebody is in front of you in lane 1, go to lane 2 and run a little faster to get ahead of that guy. Only do that if you know you can catch that guy ahead of you. Hopefully this was what you were looking for!
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