SELECT WO_Players.P_Username AS Username, WO_PlayerSkills.PS_Value AS Value 
FROM WO_PlayerSkills 
INNER JOIN (select * from wo_players order by ps_player desc) as WO_Players ON WO_PlayerSkills.PS_Player = WO_Players.P_Id 
WHERE PS_Skill = 65 
GROUP BY PS_Player 
ORDER BY WO_PlayerSkills.PS_Value DESC, WO_PlayerSkills.PS_Upload DESC LIMIT 20