[DRIFT_HUNTER]

Its not that simple as it sounds. First you probably are using checkpoints, so you have to keep track how many checkpoints player passed, depending on that generate preliminary positions, after that rearrange positions for players that have same amount of picked up checkpoints depending distance to next checkpoint. So simply put it, its not just a simple counter, you need to handle many things like position changing, checkpoints count, players leaving server/race, players dying etc...

Nobody is gonna give you full system, my advice is to check Adrenaline Racing GM