are you sure you had 1440 ?
If you got disconnected before, you got a small ELO penalty...
Finally i got this Manutoo, it was the SAM patch which was installed according to the procedure.
But the problem is/was that i did it on the Tennis Elbow 2011 folder (modded) and installed the original version in another folder Tennis Elbow 2011 copy (original), both folders had the same Key, but i never played online with the modded game.
But somehow your online server would keep reading that mana.DAT file (in the modded game folder) which pointed out to a 1420 ELO (all the time because i never played online with it), eventhough i could win a couple of matches with the original version and get to 1440 something but then it would move me back to 1420 after a short while.