AmberSoler sends the save file last (most likely), which means he sees the results of all other players before he sends his own save. Therefore, AmberSoler can know exactly how much he needs to improve his result to beat everyone (if there isn't an absolutely unbeatable result, of course). If this is the case, then it's definitely unfair!
to AmberSoler: how about players sending you their save files only after you decide that "this is my best result" and you don't replay anymore? Of course, no one can know that either, so you need someone to monitor this...
P.S. no offense, it's just that it would be fair.