MySQL Highscores - Rangos personales del usuario:Entradas duplicadas que causan valores incorrectos

prueba esto:

SET @rank = 0;
SELECT rank FROM (
    SELECT @rank:[email protected] + 1 AS rank, uid FROM playerstats ORDER BY overall DESC, 
    overallxp  DESC
) as tmp WHERE uid = 14950

la consulta avove devolverá el rango para el usuario14950

Esta consulta mostrará una lista de todos los usuarios y sus rangos

SET @rank=0;
SELECT rank, uid, overall, overallxp FROM (
SELECT @rank:[email protected] + 1 AS rank, uid, overall, overallxp FROM playerstats ORDER BY overall DESC, overallxp DESC
) as tmp